Bibliotheque botanique EMILE BURNAT Ca(alot|ii<- !V" Tri'VlCJ/t Jft: Li\r(>s provt'iumt dc In hihliollirfiiic hotiiiiique (TEmile BurnaK I8-2.S-I9-20), inseivs en orlohiv 1920 (Inns la i)il)li()Uie(|n(' dii (loiiservatoirt' l)()tniii([ne de (!( I?i THE JOUKNAL OF BOTANY, BRITISH AND FOREIGN. EDITED BY JAMES BRITTEN, K.S.G., F.L.S., Senior Assistant, Department of Botany, British Museum (Natural History). VOL. XXXV. ILLUSTRATED WITH PLATES AND CUTS. LHVAW HEW YO«K BOTANICAL OAWtiHM LONDON : WEST, NEWMAN & CO., 54, HATTON GAKDEN. 1897. xr LONDON : WEST, NEWMAN AND CO., PBINTERS, HATTON GARDEN, E.G. CONTEIBUTOES TO THE PRESENT VOLUME. E. G. Baker, F.L.S. • Ethel S. Barton. E. A. L. Batters, LL.B., F.L.S. Arthur Bennett, F.L.S. V. H. Blackjian, B.A., F.L.S. James Britten, F.L.S. G. L. Bruce, M.A. Cedric Bucknall, Mus.Bac. Harold J. Burkill. I. H. Burkill, M.A., F.L.S. J. W. Carr, M.A., F.L.S. C. B. Clarke, F.E.S. J. H. Davie s. H. N. Dixon, M.A., F.L.S. G. C. Druce, M.A., F.L.S. S. T. Dunn, B.A., F.L.S. Karl Fritsch. David Fry. Alfred Fryer. Antony Gepp, M.A., F.L.S. John Gerard, S.J. Henry Groves, F.L.S. James Groves, F.L.S. H. C. Hart, B.A. W. P. Hiern, M.A., F.L.S. E. M. Holmes, F.L.S. A. B. Jackson. Thomas Kirk, F.L.S. H. W. Lett, M.A. AuGUSTiN Ley, M.A. E. F. Linton, M.A. W. R. Linton, M.A. Arthur Lister, F.L.S. Symers M. Macvicar. E. S. Marshall, M.A., F.L.S. Spencer lk M. Moore, F.L.S. G. E. M. Murray, F.E.S. E. P. Murray, M.A., F.L.S. Greenwood Pim, M.A., F.L.S. A. B. Eendle, M.A., F.L.S. May Eoberts. F. A. Eogers. W. MoYLE Eogers, F.L.S. C. E. Salmon. E. S. Salmon. James Saunders. E. Schlechter. E. F. Shepherd. W. A. Shoolbred, M.E.C.S. Annie L. Smith. A. Somerville, B. Sc. Otto Staff, Ph.D. E. J. Tatum. E. F. TOWNDROW. Frederick Townsend, M.A., F.L.S. C. H. Waddell, B.D. John Weathers. G. S. West, A.E.C.S. W. West, F.L.S. James W. White. W. Whitwell, F.L.S. J. Lloyd Williams. W. P. Winter. J. Medley Wood, A.L.S. Directions to Binder. Tabs. 365-370 Tab. 371 „ 372 ., 373 Tabs. 374-380 to face page 1 257 289 369 417 Portrait of Charles Card.\le Babington title Or all may be placed together at the end of the volume. Tsl1o.36B. G S.West adna-tcLsl. R.MorgaxL In.th . West Nevrman imp- A Ft- 1 c a/n Al g 36 . XMRAKT new YOKK BOTANICAL THE OAHUKW JOURNAL OF BOTANY BRITISH AND FOREIGN. WELWITSCH'S AFRICAN FRESHWATER ALGiE. By W. West, F.L.S., and G. S. West, A.R.C.S. (Plates 365-369.) The algfB which form the subject of this paper were collectecl some forty years ago by Dr. Welwitsch during his eight years' residence in Angola. They are chiefly from the latter region, but a few are from Benguella and Sierra Leone. The specimens are all dried ones, and for the most part are mounted on paper. Portions of all had to be soaked out for investigation, the results of which have been very gratifying, as by this means, after a detailed exami- nation, many of the smaller species have been observed. These latter, however, had not been collected, but, independently entangled among other conspicuous species, had been collected with them. The Desmids had practically all been unconsciously obtained in this way, few, if any, collections having been made from places in which one would expect to find Desmids in abundance ; and yet about 130 fine species (including fifty undescribed onesj have been found as intruders amongst other algfe. From these mere samples one is led to wonder as to the richness of the Desmid-flora of Tropical Africa. Very little is known concerning the Freshwater Algre of Africa, only a few small scattered papers having as yet been published ; and this extensive collection — one in which almost all the groups are represented — very considerably enlarges our knowledge of the geographical distribution of these plants. The Diatoms, which are numerous in a few of the gatherings, are left for future investigation. At the time these algfe were collected the great majority of the species were as yet undescribed. They form part of the Welwitsch collection deposited in the British Museum, and the numbers after the species refer to the numbers on the sheets of this collection. A few of the species can hardly be considered as freshwater ones, but as they were in the collection we have included them. It is interesting to note that the earliest collection of algse made in Africa has been found to be more extensive and representative Journal of Botany. — Vol. 85. [Jan. 1897.] b 2 WELWITSCH S AFRICAN FRESHWATEE ALG^. than any hitherto described. The species are localized under the various districts of the region, exactly as indicated by Welwitsch on his herbarium labels. FLOEIDE^. I. — Batrachosperme^. 1. Batrachospermum Eoth (1800). 1. B. angolense, sp. n. Lemanea anf/oIejisis'Welw.'M^. Name with observation on gross characters of living plant ; the following description is ours : — B. subcartilagineum, fronde base scutatim radiata, vivum viridi- Cferulescens, gracillimum, mox flaccidum, more Floridearum non- nullis viscoso-collapsum, chartte parum adh^erens ; fila primaria 5-8 cm.; ramis numerosissimis solitariis biuisve (raro ternatis), ramis ordinis secundi tertiique numerosis et delicatissimis ; axe primario e serie singula cellularum magnarum formato et seriebus multis cellularum appressarum multe minor um vestito ; ramulis lateralibus densissimis et per axem totum regulariter dispersis, e cellulis elliptico-globosis circiter 3 formatis, ramulis sublongioribus ad nodos subnumerosos, ramis juvenibus cum ramulis principaliter ad nodos approximatos. Diam. fil. prim. (c. ramul. lat.) 150-158 /x, ad nod. 266-308 jj. ; diam. ax. fil, prim. 62 /x, ad nod. 100 fj.. Pungo Andongo. Freq. ast unico loco ad rupes submersas in rivulo de Cabondo socialis cum Podostemaceis ; med. Febr. 1857. No. 1. This may well be taken at first sight for a Lemanca with very numerous nodes, the short lateral branches which clothe the axes of the filaments being so very dense and of such uniform length that a surface view appears almost parenchymatous. The filaments are not much thicker at the nodes than between them. 2. B. nigrescens, sp. n. B. l^ete viride in vivo, exsiccata nigrescens ; fila primaria circiter 7-10 cm., ad saxa graminumque culmos demersas adnata base radiata ; ramis solitariis, binis ternisve, subpenicillatis, numerosissimis et ordinum trium, ultimis delicatissimis; axe primario ut in B. amiolense sed seriebus exteri- oribus cellularum numerosioribus ; ramulis lateralibus brevissimis, e cellulis rotundato-quadratis 1-3 formatis, longioribus et confertis- simis ad nodos numerosissimos, uodo superiori ad nodum inferiorem gradatim brevioribus. Diam. fil. prim. (c. ramul. lat.) 137-141 /x, ad nod. 216-233 //; diam. ax. fil. prim. 86 /x, ad nod. 112 /x. Pungo Andongo. Freq. ast unico loco in brachio lateral! flum. Cuanza prope ejus cataract, ad Condo ; Mar. 1857. No. 2. This is a rather noteworthy species, being so much branched that in well-developed specimens the branches aggregate to form narrow pencils ; the plant when dry is almost black, and looks like some of the marine Floridea. 8. B. gracillimum, sp. n. B. multe gracillimum et delicatis- simum, non radiatum, viridi-flavescens in vivo, subcferuleo-viride exsiccata, basi nudiusculum ; fila primaria 10-15 cm. (interdum e filo breviori et crassiori nata) ; ramis ordinum duorum, iis ordinis WELWITSCH S AFRICAN FRESHWATER ALG^. 6 primarii longis et uumerosis, iis ordinis secundi brevibus sparsisque ; axe primario e seriebus multis uuiformibus parallelis cellularum elongatarum constituto, leviter dilatato ad nodos; ramulis laterali- bus brevibus uniformibusque, nonnullis leviter ramosis, per axem totum regulariter (et non dense) dispersis ; fasciculis densis globosis magnis ramnlorum ramosissimorum e nodo bine inde (3-5 ram.) ortis. Diam. fil. prim. (c. ramul. lat.) 150-166 //, ad nod. 250- 275 fji ; diam. ax. fil. prim. 42-59 fj., ad nod. 66-91 /x ; diam. fascic. glob, ramul. 208-480 /x. Pungo Andongo. Ad lapides submersas in rivulo de Tangue; May 1857. No. 3. This very beautiful species is characterized by its numerous elongate and delicate branches, which bear the short uniform lateral branches evenly without interruption along their whole length. The globose clusters of lateral branches, which are developed on every 7th to 12th node, are no doubt connected with the fructification ; their terminal cells are of a different form to the others, being larger and mostly subglobose. The axis of the filament does not pass through the centre of this dense mass of branches, but the attachment of the globular mass is at one side of the node from which they arise. 4. B. huillense (Welw. MS., name only). B. subradiatum, in vivo hiete viride, extra aquam mox violaceum, exsiccata nigresceus ; fila primaria rubra, dense ramosa ; ramis ordinum trium vel quat- tuor, ultimis plerumque geminatis, brevibus et confertissimis, brevi- oribus apices versus ; axe primario e seriebus parallelis numerosis appositis cellularum formato serie centrali cellularum multe majorum ; ramulis lateralibus brevibus deusisque plus minusve uniformibus, ad nodos densioribus, axe juxta supra nodos sub- glabro; ordine iutermedio ramornm submouiliformi, ramis juveui- bns nodis approximatis submoniliformibusque. Diam. fil. prim, (c. ramul. lat.) 191-325 //, ad nod. 275-400 /u.; diam. ax. fil. prim. 125-275 /x, ad nod. 175-325 fx. Huilla. Freq. ad riipes lapidesque submersas in rivulis prope Lopollo; May 1860. No. 4. Also fragments from No. 187. This species is well marked by its peculiar and dense branching, specimens dried on paper appearing hypnoid. It reminds one of a delicate B. atnun Harv., except as to its branching. This species and B. ijracilliinuin adhere very well to paper, while B. nujrescens and B. aiujolense adhere but slightly. II. HiLDENBRANDTIACE.E. 1. HiLDENBRANDTiA Nardo (1845). 1. H. RivuLARis (Liebm.) J. Ag. Species Ahjar. ii. 495 ; Eabeuh. Fl. I'Au-iip. Ah/, iii. 408. Diam. cell. 3*5-4 /x. Goluugo Alto. Macalis magnis belle sanguiueis rupes siliceo- arenosas juxta Fontem de Capopa oruat ; Sept. 1855. No. 149. 2. H. ANGOLENsis Welw. MS. ; name with partial description ; the following description is ours : — B 2 4 WELWITSCH S AFRICAN FRESHWATER ALG.E, H. roseo-purpurea, saxa silicacea rivulorum colore amoenissime roseo ornans ; cellulis quadratis, interdum subquadratis sed semper angularibus, in seriebus verticalibus ordinatis. Diam. cell. 3-5-5 //. Golungo Alto. Ad silices in rivulis sylv. primit. de Quibanga pr. Sange, June 1857. No. 150 (I. and II.). Welwitsch remarks that the rocks were of a most beautiful rose-colour for half an hour's walk along the stream. CHLOROPHYCE^. III. — (Edogoniace.e. 1. BULBOCH^TE Ag. (1817). 1. B. ANGULOSA Wittr. & Lund, in Wittr. Prodr. Monoy. (Edog. 45(1874). Crass, cell, veget. 12-5-15 /j.; altit. l^-2i-plo major ; crass, oogon. 40-44 /x ; altit. 35-40 /x ; crass, naunandr. G-7-5 /x ; altit- 23-27 /x; crass, audrosporang, 10-12 /x ; altit. 9-5-13-5 //. Huilla. In paludibus exsiccaudis ; April 1860. No. 176. In these African plants the oogonia were under the andro- sporangia, and were rotundo-rhomboid, with the superior margins straight (not retuse) ; the naunaudria were not epigynous, but scattered. 2. (Edogonium Link (1820) ; Wittr. em. 1. CE. CRYPTOPOEUM Wittr. Disjws. Q'Jdog. Suec. 19 (1870). Crass, cell, veget. 7*5 /x; altit. 3^-4i-plo major; crass, oospor. 22-23 IX ; altit. 21-22 /x. Loanda. Represa do Maghelano pr. Boa vista ; Feb. 1854. No. 194. 2. (E. CEISPUM (Hass.) Wittr. Prodr. Monoy. (Edog. 10 (1874). Var. Uruguayense Magn. & Wille, Bidraq til Sydamerik. Alq.-ji. 39, t. ii. fig. 63 (1884). Crass, cell, veget. 13-5-15 /x; altit. 2i-o- plo major; crass, oogon. 31-34 /x ; altit. 28-32 /x ; crass, oospor. 28-32 fx ; altit. 27-31 yu. Loanda. Represa do Maghelano pr. Boa vista, c. ffi. crypto- porum; Febr. 1854. No. 194. 3. CE. GRAciLLiMUM Wittr. & Lund, in Wittr. Prodr. Monoyr. (Edog. 15 (1874). Forma major. Crass, cell, veget. 6-5-7 /x; altit. 3|— 6-plo major; crass, oogon. 20-23 /x ; altit. 32-35 /x ; crass, oospor. 17 /x ; altit. 24/*. Huilla. In udis sylvaticis et apricis inter Moniuo et lac. Ivan- tala, c. Porpliyrosiphon Notarisii Kiitz. ; April 1860. No. 14. 4. CE. Itzigsohnii De Bary, Ueb. OH dog. und Bulb. 56, t. iii. fig. 29-32 (1864) ; Wittr. Prodr. Monogr. (Edog. 16. Var. BiiNOR West, Notes on Scotch Freshw. Alg., Jonrn. Bot. April, 1893. Crass, cell, veget. 4-8-5-7 /x; altit. 5-8-plo major; crass, oogon. 21-29 /x ; altit. 17-30 /x ; crass, oospor. 13-5-18 /« ; altit. 13-18 /x. Pungo Andongo. Freq. c. Scytonema myochroiis (Dillw.) Ag. var. chorograpldcum, temp. pluv. (i. e. Dec. usque Apr.) liete vege- tans, ad Pedras negras in summis rupibus ; Febr. 1857. No. 6. "U'ELWITSCH S AFKICAN FRESHWATER ALG.Ti;. O The specimens were even a little smaller than those originally described from the Orkney Isles. 5. CE. huillense, sp. n. (tab. 365, figs. 7, 8). CE. monoicum (?)_; oogoniis singulis, subrhomboideis, augulis lateralibus mammiformi- bus, a vertice visis stellatis cum processubus sequalibus 8 ; oosporis globosis, oogonia non complentibus. Crass, cell, veget. 7*5 /a; altit. 4-5-plo major; crass, oogon. 24-26 /x ; altit. 24-26 /x ; crass, oospor. 17 /v. ; altit. 17 /x. Huilla. In paludibus exsiccandis ; April 1860. No. 176. The nearest species to this is S'. «iia L. 6'. purpurea L. (cult.). /S'. Smithiana Willd. (cult.). 5. cinerea L. >S'. Caprea L. Bctida alba L. Alnus f/liitinosa Medik. Fayiis sylvatica L. Castanea saliva Mill. Quercus Fiobur L. Corylus Avellana L. 7r/s Psendacorus L. Alisma Plantayo L. .4. ramincaloides L. Scilla festalis Salisb. Narthecium Ossifrafium Huds. Junciis maritimus Lam. tT". efusus Li. J. conglomeratus L. J. acutifiorus Ebrli. J. lampocarpus Elirh. X squarrosus L. J", bufonius L. Luzxda maxima DC. Sparganium minimum Fr. Arum maculatum L. Lemna minor L. Potamogeton polygonifolius Pour. P. pectinatus L. Scirpus lacustris L. /S. cernuus Vahl, Enum. ii. 245 (1806); S. /Sflm Sebast. & Mauri, F/. Jilo??!. Pro(//-. 22 (1818), var. monostachys Syme. Isoh'pis pygnura Kuutli. Eriophorum polystachyum L. Carex flacca Scbreb. Phalaris canariensis L. Nardus stricta L. Phragmites communis Trin. Agrostis vulgaris With. ^. rt/kf L. Holcus lanatus L. H. mollis L. ^-l/rrt caryopliyllea L. ^. pracox L. Arrhenatherum avenaceum P. Beau v., /3. J. bxdbosum. Lindl. b. nodosum Eeiebb. Sieglingia decumbens Bernli. Cynosurus cristatus L. Port annua L. P. pratensis L. Dactylis glomerata L. Festuca ovina L. Serrafalcus racemosus Pari. Brachypodium sylvaticum Beauv. Agrost. 101. Triticum repens L. Lolium perenne L. Equisetum arvense L. i?. limosum L. Polypodiurn vulgare L. Lastroia Filix-mas Presl. L. dilatata Presl. Athyrium Filix-fcemina Roth. Lomaria Spicant Desv. Pteris aquilina L. Piccia glauca L. Ascophylhwi nodosum Le Jolis. Pellia epipliylla Corda. P. calycina Nees. Fegatella conica Corda. Marchantia polymorpha L. ISLE OF MAN PLANTS. 15 Pucclnia Malvacearum Mont. On ]\fah-a sylvestris, Eushen and Castletown. P. Umbilici Guep. On Cotyledon Umbilicus, Eushen. P. Taraxaci Plowr. On Taraxacum officinale, Port Erin. P. CentaurecB Plowr. On Ccntaurea nigra, Port Erin. P. Hieracii Mart. On HypocJueris radicata, neighbourhood of Port Erin. P. Smyrnii Corda. The fficidium on SiiiyrniuiH Olusatnuu , Glen Meaye. P. Cirsii-lanceolali Schroet. On Cnicus lanceolatiis, Eushen. P. obscura Schroet. On, Litzula maxima, Glen Meaye. P. Eubif/o-vera (DC). Wint. On Triticum repens, Castletown. P. poarum Nielsen. On Poa, Port Erin ; the aecidium [/Ecidium, Tiissilaginis Gmel.) on Tussilayo Farfara, Port Erin. Phragmidium violaceuiii (Schultz) Wint. (syn. P. asperum Wallr.). On FiUbus sp., Port Erin. P. ejfusiim Auersw. On Pubus Idaus, Sulby Glen. Coleosporium Sonchi (Pers.) Wint. On So7ichus arvensis, Balla- more. C. Tussilaginis (Pers.) Kalchbr. On Tussilago Farfara, Castle- town. C. Senecionis (Pers.) Fr. On S'enccio vulgaris, Castletown. C. Synantherarum Fr. On Petasites, Ballamore. C. Euphrasia (Schum.) Wint. On Euphrasia officinalis, Eound Table. Melampsora Euphorbia Cast. On Euphorbia Peplus, Castletown. Uredo hypericorum DC. On Hi/pericam AndroscBmwn, Douglas. Exoascus betulinus (Eostr.) P. Magn. Had formed numerous " Hexenbesen " (witches' brooms) on a Birch near Douglas. Podosphmra Oxyacanthce (DC.) De Bary. On Cratagus Oxyacantha, Foxdale. Ovularia obliqua (Cooke) Oudem. On Pumex obtusifolius, Eushen. Ramidaria sambucina Sacc. On Sambucus nigra, Ballamore. E. gibba Fuckel. On Pununculus repens. Port Erin. Cladosporium graminum Corda. On Triticum repens, Castletown. Septoria Pnbi Westand. On Riibus sp., Port Erin. Phyllosticta maculiformis Sacc. On Castanea sativa. Glen Meaye. Darluca Filum Cast. In Puccinia Rubigo-vera (DC.) Wint. on Triticum repens, Castletown ; and in P. obscura Schroet. on Luzula maxima. Glen Meaye. Placosphceria graminis Sacc. & Eoum. On Holcus mollis, Sulby Glen. Marsonia PotentillcB (Desm.) Fisch. On Potentilla Anserina, neigh- bourhood of Port Erin. Cladonia rangiferina Hoffm. Eound Table. Piamalina cuspidata (Ach.). Fleshwick Bay and Eound Table. 16 THUIDIUM PHILIBERTI Limpe., A NEW BEITISH MOSS. By H. N. Dixon, M.A., F.L.S. In a note on Thuidium recognitum Lindb. in the recently pub- lished Student's Handbook of British Mosses, p. 386, I referred to Thuidium intermedium Phil. (= T. Philiberti Limpr.) as of doubtful specific status, and probably equivalent to T. reco(jnitum. This conclusion was based upon the full description of the plant by Philibert in the Revue Brijolo(jique, 1893, p. 33, the only source of information I then possessed. I have recently, however, received from Dr. G. N. Best, of Eosemont, N3w Jersey, his Bevision of the North American Thuidiums, and by the kindness of the same bryologist an authentic fruiting specimen of the moss in question ; and a study of the plant, together with the fresh light thrown upon it by Dr. Best's description, has shown ^hat Philibert's account is somewhat inadequate, and has induced me to alter my opinion and to recognise in T. rhiliherti at least as good a right to specific status as in the case of T. delicatulum Mitt, and T. recognition Lindb. Having once grasped the salient points of T. Philiberti, 1 had little hesitation in referring to it a moss which I gathered on wet rocks near the summit of Craig Chailleach, Perthshire, in 1893. The plant, however, was without fruit, and bore only a few young perichfetia, some of the more important distinguishing characters being for this reason unavailable. I sent a specimen therefore to Dr. Best, and his reply is as follows : — " Your Thuidium is indeed T. Philiberti. I congratulate you on being the first to find it in Scotland. Now that you know what it is, you will probably not be long in finding it in England. It always grows in wet places, and is usually sterile. As to its rank, I have to say that the more I study it the more I am satisfied that it is a good species." As the moss has not been described in any of the systematic works most in use, and the original description by Philibert is difi'use and fails to point out or at any rate to lay stress upon some of the leading characters (and in one point at least is slightly inaccurate), I here subjoin Dr. Best's diagnosis of the species, extracted from the Bulletin of the Torreg Bot. Club, xxiii. 84 (1896). Thuidium Philiberti Limpr. Thuidium intermedium. Philib. Bev. Bryol. xx. 33 ; 1893. Not Mitt. 1851. T. Philiberti Limpr. in Babenh. Krgptog. iv. 2, 835 ; 1895. Medium-sized plants, yellow to dark green, in intricate mats ; stem 4-8 cm. long, creeping, pinnately branched ; branches pinnate or bipinnate : paraphyllia multiform ; stem-leaves triaugular-cordate- acuminate, usually with a hgaline jiliform. point, margins revolute or recurved, at least below ; leaf-cells oblong-quadrate to oblong- rhomboidal. Dioicous ; perichfetia! bracts loose, ftexuous spreading or reflexed, serrate, rarely with a few short cilia on the innermost, acumen about three times as long as the short, scarcely costate body ; capsule oblong-cylindrical, curved, horizontal ; annulus narrow, indistinct, tardily or imperfectly deciduous ; operculum THUIDIUM PHILIBERTI LLMPE., A NEW BRITISH MOSS. 17 conic-rostrate, curved; spores •012--016 mm., almost smooth, maturing in October. (Plate 260.) In wet swampy places on the ground or the base of small trees. New Jersey (Best) ; Pennsylvania (Porter). Dr. Best remarks that it is probably an involute form of T. deJi- catuluiii Mitt. I think, however, it may be doubted whether its relationship to T. recognitum Lindb. is not at least as close. It may be as well to point out that the re -naming of the species by Limpricht was necessitated by the fact that the name T. inter- meduim was already preoccupied by a species of Mitten's. Like most of its aUies, ThnUium Philiherti is usually found barren; it will therefore be helpful to indicate the characters by which, even without fruit, it may be recognised from T. ddicatubim and T. recof/nituw, the only two British species with which it could be confused. (The simply acute apical cell of the branch-leaves of 2'. tamariscinum at once separates that species.) In the branching it is somewhat intermediate between the two, being frequently tri- pinnate, though less regularly and distinctly so than in T. delica- tidum. It also grows in more or less damp situations, whereas T. recognitum is usually found on dry calcareous soil. But the most characteristic feature, and the one that to my thinking gives it one of its best claims to distinction, is the long- drawn-out, filiform point of the stem-leaves, forming a fine hyaline jointed hair composed of a single row of linear cells, and of some considerable length. In the older leaves it is often broken off, but otherwise it is probably always present, and is especially noticeable in the tuft of leaves at the apex of a growing steui or new shoot. In this character the plant shows an approach to some exotic species, such as T. ci/tnhifoliutn Dozy & Molk. The stem-leaves in T. rccognituw, more rarely in T. delicatuhim, are occasionally tipped with a short point of a similar nature ; but it rarely consists of even two or three cells in length, and is never prolonged into a long flexuose hair-point, as in T. FhUiherti. T. delicatulum difi'ers from both the other species in the stem-leaves more erect and less spreading, indeed when dry appressed to the stem with the point scarcely showing ; in T. recognitum and T. I'hUiherti they are, on the other hand, widely spreading when moist, and even when dry the long acumen is frequently recurved, and always forms a much more distinct feature than in T. delicatulum, which in this respect resembles T. tidijtaodnn culindricus var. Holtii, collected in Kerry, and sent by Rev. C. H. Binstead. Leptodon Smithii (Dicks.) Mobr.,' collected by Dr. Ferguson and Prof. T. Baker in Cumberland. BOOK-NOTES, NEWS, ETC. 31 Amhlystet/ium fallax Brid., from Stroud, E. J. Elliott; this is the var. vallis-dausce of Hypmcm filiciniim. Mitten's var. scahrellum of H. tenellum, known by its rough seta, was sent from Lewes by W. E. Nicholson ; aad the new Hijpnum prucerruiiuni from Perth- shire by E. H. Meldrum. Only a few Hepaticfe were sent, which included P. cocldeariforme Weis., from Moidart by S. M. Macvicar ; and Lejeunea minutissima and Forella hcvitjata from Gloucestershire by E. J. Elliott. Any person wishing to join the Club should com- municate with the Hon. Sec, Rev. C. H. Waddell, Saintfield, Co. Down. Another part (xxii.) of the Flora of British India appeared in December. Sir Joseph Hooker continues his elaboration of the GraminecB. Dr. Stapf contributes certain genera — Poa, Erat/rostis, Festiica, Bromus, L'atahrosa ; and the BanihusecE, are condensed from Mr. J. S. Gamble's monograph of the Bamboos of British India. The Messrs. Linton have issued the second fascicle of their Set of British Hieracia. As in the first fascicle, the greater number of specimens are endemic, consisting of ten species and three varieties. Of the remainder, six are common to Britain and Scandinavia, and six are found throughout Europe. The following note accompanies the specimens : — " We include //. pratmse, though doubtfully native, as it has been known for many years in its Scotch locality. H. siiiuans is a recently-defined species of the yif/ri'sceutia, not infrequent on the Breadalbanes. H. riibiciuuluin is allied to H. phunheum Fr., our plant beiug from the Moffat Hills, where it is fairly abundant. H. murorum vars. pellucidum and lepistodes, and H. riijidiim var. scabrescens, have been recently identified as British by Dr. M. Elfstrand of Upsala. H. holophyllum seems confined to the lime- stone cliffs of Derbyshire. H. suhanfractum is closely allied to H. anfractiforme Almq. H. diaphanoides var, apiculatiim has been thought to resemble H. diaphanuin Fr. var. stenolepis Lindeb., but their identity is denied both by Herr Dahlstedt and the author of the British variety. H. umbeUatum, the form supplied is one with livid styles, but in other respects fairly typical." Mr. I. H. BuRKiLL has been appointed an assistant in the Kew Herbarium. At the Linnean Society's meeting on Dec. 3rd, Mr. E. M. Holmes exhibited specimens of Liebmannia viajor, a seaweed not hitherto delected in Britain, and, so far as is known, recorded only from Finisterre. The specimens were collected at Lossie- mouth, in August, 1896. He also showed Bonninnaiaonia hamifera, collected in May last by Mr. E. George, and in August last by himself. In 1895 living specimens of this seaweed, a native of Japan, were found at Falmouth by the late Mr. T. H. Buft'ham, and during the present year other examples had been found at Shanklin, Isle of Wight, showing that the plant had apparently become naturalized. In the Annals of Botany for December, Mr. G. C. Druce has a note on a British hybrid Gentian [G. Amarella x yermanica) and 32 BOOK-NOTES, NEWS, ETC. on the well-known hybrids between Linaria repens and L. vulgaris. Notes on British plants are so infrequent in the Annals that it seems well to call attention to these, which might otherwise be overlooked. David Robertson, LL.D., F.L.S., " The Naturalist of Cumbrae," died at Millport, Cumbrae, on the 20th November. He needed but a week to attain his ninetieth birthday, having been born in Glasgow on the 28fch November, 1806. The Rev. T. R. R. Stebbing has told the story of his life in The Naturalist of Cumbrae: how he struggled with adversity, commenced a medical education, forsook it, went into business, and by the time he was fifty-four years old had made enough money to enable him to retire and devote himself to his beloved marine zoology. However, it is as a botanist that he is commemorated here. His knowledge of British Seaweeds was intimate, and in many cases critical, and he was the valued corre- spondent of students of this subject. He was a man of fascinating character, and of wonderful influence over the young people who during recent years went to work in the " Ark " at Millport. The progress of the new Zoological Station and Museum at Millport, which will be a permanent memorial of him, engaged his interests to the end. The death is announced of Frederick Isaac Warner, F.L.S., of Winchester, on the 8th November last, at the age of fifty-five. Though for many years past incapacitated by ill-health for much out-of-doors botany, he retained the keen interest in the study which made him an ardent botanist in the years gone by. He was a contributor to this Journal, and, as his notes testify, a careful observer and student both of flowering plants and mosses, and the minuter fungi. Perhaps his most active work was done in connec- tion with the Winchester and Hampshire Scientific and Literary Society, of the Botanical Section of which he was in 1871 secretary, and in 1872 became the general secretary, an ofiice which he held till the end of 1876. In the Journal of the Proceedings of this Society he published, in 1871, a list of plants found within seven miles of Winchester, wath the localities. He formed a very good and complete herbarium of Hampshire plants, and he furnishes lists of localities for Mr. Townsend's Flora of Hampshire, in which work his name is constantly given as the authority for localities. He became a Fellow of the Linnean Society in 1872. — F. S. Alfred Chandler, who is included in the Bior/raphical Index of Botanists, was born at Vauxhall on Jan. 31st, 1804, and died on Nov. 10th last. Although he cannot strictly claim rank as a botanist, his name is associated with the beautiful Illustrations of Camellia published in 1831, for which he prepared the drawings. We learn from the Gardeners' Chronicle for Nov. 21st, where a fuller notice of Chandler will be found, that he leaves behind him an extensive collection of drawings, which form an interesting record of horticultural progress. He died at East Pulwich. ■Talo SSS. G S .West acLnat del . RMorgan. litki West,Newma.Ti imp Afri c a-ti Al g as . G.SWest a.cL-Ti ajt oLel . Africsun Alg^. WestNewmaTi imip 33 WELWITSCH'S AFRICAN FRESHWATER ALG^. By W. West, F.L.S., and G. S. West, A.R.C.S. (Plates 365-369.) (Continued from p. 7.) V. — Ulotrichace^. 1. HoRMisciA Fries (1835) ; em. Aresch. (1866). 1. H. suBTiLis (Kiiiz.) De Toni, Syll. Ak/. 159, 160 (1889). Ulnthrix subtilis Kiitz. Phi/c. German. 197 ; Rabeuli. Flor. Eump. Alf/ar. iii. 365. Crass, fil. 5-5-6 fx. Huilla. Frequens in pascuis pluv. autumnalibus frequentius iuundatis, demum exsiccautibus ad lacum magnum de Ivantala, inter Pi)ri>hy)-osiphoneiii Xotarisii; March 1860. No. 18. Pungo Andongo. In pascuis spongiosis breve graminosis juxta rupes gig., May 1857. No. 111. Var. VARIABILIS (Kiitz.) Kirclui. in Cohn, Krypto/j.- Flora van Schles. 77 (1878). UlothrLv variabilis Kiitz. Species Alyar. 346; Rabenh. I. c. Crass, fil. 6*5 //. Pungo Andongo. Freq. temp. pluv. in summis rupib. ; Febr. 1857. No. 6. 2. Stigeoclonium Kiitz. (1843). 1. Stigeoclonium ? sp. Huilla. Fragments amongst Gonatonema tropicus, &c., Morro de Lopollo ; Febr. 1860. Nos. 172 and 186. 3. Psephotaxus, gen. n. Tballus subfilamentosus, epiphyticus ; fila brevissima, serie 3-7 cellularum formata, solitaria, subirregularia et flexuosa, simplices vel pseudoramosa, in muco firmo achroo nidulantes ; celluljB formarum et mngnitudinum variorum, subglobosa), elliptical, oblougae vel subpyriformes, sfepe curvatos ; membraua cellularum crassissima et insigne lamellosa ; contentum cellularum granu- losum. Incremc ntum plantarum bipartitione cellularum intercalari. 1. P. lamellosus, sp. unica. Character idem ac generis. Diam. cell. 15-29 jx; long. cell. 15-45 jjl ; crass, membr. cell. 3-4 fx. Pungo Andongo. Alga epipliytica in Dichotriche (/j/jisophila (inter ScytiDU'nia iiiijoclinius var. c/thnttf/rajilticimi et (iLdoyoniiDn tapcino- sporum var. ani/olcnse) ad latera boreal, et occid. de Pedra Songue ; April, 1857. No. 12. Huilla. In Scliizotriche natante in graminosis paludosis juxta rivulum de Lopollo ; April 1860. No. 180. This is a most remarkable confervaceous alga, more especially on account of its short filaments of irregular cells with thick lamellose walls ; the filaments are enclosed in an irregular mucus which seems to be formed from the outer lanielht of the cells. One method of propagation is by the breaking up of the filaments into their component cells, each of which by division then forms a short irregular filament. Journal of Botany. — Vol. 35. [Feb. 1897.] d 34 WELWITSCH S AFRICAN FRESHWATER AL.GM. 4. Conferva L. (1737) ; em. Lagerb. (1887). 1. C. BOMBYciNA Ag, St/st. Ahjaf. 88 ; Wille in Ofo. K. Vel.-Akad. Forhandl. (1881), no, 8, 20-1. Forma minor Wille, I.e. 21, t. i. fig. 36-40, t. ii. fig. 55, 56 (1881). Crass, fil. 6 ^i. Pungo Andongo. Ad ramulos Podostemacearam in rivulis (Casalale) ; March 1857. No. 105. 2. C. SANDwicENSis Ag. Sijst. Altjcir. 92 (1824); Nordst. Aly. et Char. Smidwic. 18, t. i. fig. 25. Crass, fil. 25 /x. Mossamedes. Freq. in stagnis puris ad ripas flum. Bero, inter (Edogonium sp. ; Aug. 1859. No. 190. 5. Microspora Tbur. (1850) ; em. Lagerh. (1887). 1. M. AMffiNA (Kiitz.) Rabenh. Fl. Europ. Ahjar. iii. 321 (1868). Conferva avuena Kiitz. Species Algar. 372 (1849). Crass, fil. 24-27 /x. Golmigo Alto. Ad rupes m flumine Luinba fluctuans ; July 1856. No. 203. 2. M.WiTTROCKii (Wille) Lagerh. in i>cric/ti.Z)e»isc/i. Bot. Gesellsch. V. 417 (1887). Conferva Wittrockii Wille in Of v. K. Vet.-Akad. For- handl. (1881), no. 8, 20, t. i. fig. 1-11 (1881). Crass, fil. 24 [jl. Golungo Alto. In stagnis parvis circa Fonte de Ban^a de Quilombo Quiacatubia, ast sparsim ; Jan. 1855. No. 202. 3. M. ABBREviATA (Rabeuh.) Lagerh. I.e. 417 (1888). Conferva ahhreviata Eabenb. Kn/pt. Flor. v. Sachs. 246 (1863) ; Flor. Eiirop. Algar. iii. 323. Crass", fil. 8-5-10 ji. Huilla. Alga l?etissima viridis, lubrica, nebulosa, ad Batracho- spermum Huillense in rivulis prope Lopollo ; May 1860. Nos. 187 and 4. 4. M. LoFGRENii Nordst. in Botaniska Nutiser, 1882, 55. Con- ferva Ldffjrenii Nordst. in Wittr. & Nordst. AU). aq. dale, exsic. No. 421(1882). Crass, fil. 15-20 //. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo, i)lagas spongiosas unacuni Eriocauloneis, Xyridibus et Utriculariis constituens ; May 1860. No. 15. Etiam Morro de Lopollo ; May 1860. No. 182. Most of the plants had formed or were forming hypnospores, "which when fully mature were globose or subglobose, with very thick lamellose walls ; a few of these had evidently been formed from but part of the contents of a cell, and were externally nodulose. The cells bad a very lamellose membrane, which character is most con- spicuous during the formation of the hypnospores, the filaments becoming at this period more or less irregular, and the cell-septa also growing very greatly in thickness by the addition of lamellte on each side. The filaments do not appear to break u}) in the manner of other species of Microspora and Conferva. 5. M. FONTiNALis (Berk.) De Toni, %//. Ahj. 230 (1889). Con- ferva fontinalis Berk. Glean, t. xiv. fig. 1. Crass, til. 15-17 p^; a variety agreeing with var. ochracea Zanard. in the relative length of its cells, but occurring in dark green masses. Loanda. In aquis puris stagnantibus subsalsis urbis Loandje ; WELWITSCH's AFRICAN FKESHWATER ALG^. 35 June 1858. No. 198. Also drawn up from the bottom of the drain at. Welvvitsch's house in Loanda, a stream which hardly receives the light of day through a narrow slit in the cover ; April 1859. No. 145. VI. — CnROOLEPIDACEiE. 1. Trentepohlia Mart. (1817). 1. T. lagenifera (Hildebr.) Wille, in Priugsh. Jahrb. xviii. 427 (1887). Ckruolepus lageniferum Hildebr. in But. Zeit. 85, t. iii. (1861). Crass, fil. 12-5-15 /a; crass, zoogonidang. 23 /x, altit. 38 //. Golungo Alto. Inter Scytonema inslyne ad rupes rivul. Coango humect. ; June 1856. No. 140. 2. T. phyllophila, sp. n. T. epiphytica et phyllophila, in vivo et exsiccato viridis, filamenta rigidula patentim ramosa ; cellulis diametro 1-1^-plo longioribus, leviter constrictis ad dissepimenta ; ramis brevibus plerumque imilateralibus, filo primario jequalibus, erectis (angulos rectangulos formantes) interdum subdeflexis, cellu- lis diametro 1-2-plo longioribus ; zoogonidangeis magnis obovatis vel pyriformibus, sessilibus, apicalibus vel lateralibus, granulis minutissimis viridibus farctis. Crass, cell, veget. 4'5-5*7 /a; long, zoogonidang. 20-26 /x, lat. 13-5-15*5 /x. Golungo Alto. Ad folia plantfe aculis monocotyl. (quam non- dum fiorentem vidi) in Mata de Quisuscula, prope Bango ; July 1857. No. 148. The green contents entirely fill the cells when living, but when dry they contract into a double-cone-shaped or dumb-bell-shaped mass in each cell. The branches rarely bear branchlets, except very short ones consisting of one or two cells. The species which most nearly approaches it is T. tenuis (Zell.) De Toni, from which it differs in its green colour, in its rather smaller size, in the equal thickness of its primary filaments and branches, and in its obovate zoogonidangia. Forma subuana, fuscescens, cellulis paullo tumidis; crass, fil. 5-6 /x. Golungo Alto. Ad muscorum surculos in rupibus juxta rivulos de Zengos do Queta ; July 1856. No. 143. VII. — Cladophorace^ . 1. RnizocLONiuM Kiltz. (1843). 1. R. crassipellitum, sp. n. K. terrestre, cjespitosum, flavo- virescens, flaccidula; filamentis crispulis, simplicibus (ramulis radi- cantibus nullis), cellulis diametro 1^-3-plo longioribus, hinc inde ventricoso-inflatis, curvatis et genuflexis ; meuibrana crassissima et valde lamellosa ; cellulis apicalibus subatteuuatis et rotundatis ; cellulis basalibus sjupe inflatis et interdum in rhiziuis sublongis productis; zoogonidiis (ut observatis cl. Welw.) parvis, subspha;ricis. Crass, fil. 33-43 /x; crass, niembr. cell. 7-10'5 f.. Loanda. In terra humida umbrosa locis cultis, Loanda ; Aug. 1858. No. 205. This species is characterized by its terrestrial habit, its very thick cell-Wiills, and the absence o*" rhizoids. D 2 36 wklwitsch's African freshwater alg^. 2. Cladophora Kiitz. (1843). 1. C. CRisPATA (Roth) Kiitz. Phijc. Gener. 264 (1843) ; Cooke, BHt. Freshiv. Alg. 143, t. 55, fig. 3. A form with the filaments not more than 1-li cm. high ; branching suhdichotomous, subsecund towards the apex ; cells 6-12 times longer than broad. Loanda. From the bottom of the well at Welwitsch's house in Loanda; Jan. 1859. No. 144. 2. C. amplectens Welw. MS. ; name with partial description. 0. ctespites duriusculos rigidos formaus, laete virides, diametro circiter 12-15 cm., ericaceo-hiapidulos, basin truncorum prope terram limoso arenosam circa circum amplectentes ; filis carti- lagineo-elasticis, dense intertextis, subdichotome et sparsim ramosis, cellulis plerumque diametro 20-plo (vel usque) longioribus ; ramis paullo angustioribus quam filamenta primaria, cellulis diametro 14-20-plo longioribus, granulis intense viridibus laxe repletis ; cellulis teiminalibus obtusis ssepe subclavatis ; membrana delicate plicato-striata. Crass, fil. prim. 100-150 fj.; crass, ram. 75-92 /j.. Loanda. Ad imam basis truncorum lihizophoranun tempore refluxus oceani aeri expositarum ad littora Loandeusia frequens ; Nov. 1853. No. 23. This species belongs to the section (Egagropila, and has rather a peculiar habit ; Welwitsch likens the appearance of a tuft to that of a child's head. 3. Cladophora sp. A minute fragment, insufiicient for accurate determination; filaments about 1-5 mm. in length, branched re- peatedly and irregularly ; cells 1^-3 times as long as broad, mostly somewhat inflated, terminal cells acutely conical. Crass, cell. 33-56 /x. On Helices in Lagoa de Quibonda; Sept. 1857. No. 200. VIII . — Pithophorace^e . 1. PiTHOPHORA Wittr. (1877). 1. P. radians, sp. n. P. gracilis et radiata, elegantissima (13-18 cm.) ; foliis primariis plantarum fertilium thalli cauloidei crassitudine circiter 114 /^ (104-130 jx) ; ramos ordinis primarii etiam paucos ordinis secundi (crass, circ. 64 /x) gereus ; cellulis vegetativis diametro 6-16-plo longioribus; sporis solitariis, intercalaribus termiualibusque ; sporis intercalaribus subcylindricis et leviter iuflatis, long. 150-200 /x, lat. 100-120 /x ; sporis terminalibus ovato-ellipticis base truncato, apice conico et obtuse subacuminato, long. 200-266 /x, lat. 91-116 /x ; sporis subfrequentibus his locis ubi rami oritur. Loanda. Copiose in aquariis aquae subdulcis insulns Cassanga prope Morro da Cruz ; April 1854. No. 197. " Stirps vegetationis suae luxuria et vitae fugacitate aeque insignis." The nearest species to this is P. G^Jdogonia (Mont.) Wittr., from which it differs in its much greater thickness, in having no branches of a third order, in never having binate spores, and in the inter- calary spores being much less inflated. WELWITSCH's AFRICAN FRESHWATKR ALG^. 37 IX. — Temnooametace^. Ordo novus Conjuoatarum, conjugatio solum inter cellulis speciatim abstrictas. 1. Temnogametum, gen. n. Cellulfe vegetativae ut in Mougeotia, cylindricse, chromatophoro elongate complanato pyrenoidibus uniseriatim dispositis ; propagatio zygosporis conjugatione scalariformi lateralive cellularum brevium specialium abstrictarum formatis. 1. T. heterosporum, sp. unica. T. cellulis vegetativisdiametro 6-12-plo lougioribus, cbromatophoris pyi-enoidibus parvis globosis 1-6 (plerumque 5) ; cellulis conjugantibus diametro l|^-2i-plo longioribus ; zygosporis ubi conjugatione scalariformi productis paene x -formibus, robustis cum angulis truncatis, ubi conjugatione laterali oblique subcylindricis, latere altero recto concavove, altero convexo, polis truncatis. Crass, cell, veget. 14-5-17 z^; lat. zygosp. conj. seal. form. 48-59 //, long. 39-50 /x; lat. zygosp. couj. later. form. 20-26 /x, long. 61-67 /x. Huilla. Forming dense intricate masses with Gonatonema tropicnm, Zijgncma apontaneum, and StUjeoclonium? sp., Morro de Lopollo ; Febr. 1860. No. 172. This is a remarkable plant more particularly on account of its special conjugating cells ; these are short, and cut off either singly or in pairs at intervals along the filaments. In the former case the conjugation is scalariform ; these special cells in two contiguous filaments put out short rounded conjugating tubes which unite, the cells themselves becoming bent towards each other, and very soon the two cells coalesce and form the zygospore. In this way a zygospore is produced which at first sight very much resembles the central cell of the five cells constituting the spore of a Mougeotia of the section Staurospermece. In those filaments in which the pairs of cells are cut off the conjugation is lateral, the two cells forming a zygospore much resembling the aplanospore of a Gonato- nema. In fact, these zygospores are oblique, and the convexities and concavities alternate along the filament precisely as in the case of a sporiferous filament of the latter genus. Both scalariform and lateral conjugation occur in the same filaments. In all the specimens observed (which had been dry for a long period) the contents of the thick-walled spores appeared to have contracted into two approximate rounded masses ; whether the latter had ever been perfectly united or had yet to unite within the wall of the spore is a matter that could not be definitely decided from the material. On account of the peculiar conjugation, this plant must be placed as the type of a new order — iemnngametacea — of Cunjiigatce. X. ZYGNEMACEiE. . 1. Mougeotia Ag. (1824); em. Wittr. (1878). 1. M. (§ Staukospermum) uberosperma, sp. n. M. cellulis vegetativis diametro 4-8-plo longioribus, cellulis conjugatis genu- flexis ; zygosporis maturis angulari-globosis (cum angulis 5-6), 38 welwitsch's African freshwater alg^. membrana crassissima et lamellosa, acliroa, cum processibns solidis mamillatis achrois 4, plerumque in^qualibus, unoquoque in unum cellulfB coujugattTB pvojecto. Crass, cell, veget. 6-8 /a; diam. zygosp. siue proc 21-27 /^ ; crass, membr. 3-6 jx; long. proc. 3-18 yu.. Huilla. In paludibus exsiccaudis ; April 1860. No. 176. This cliaractei'istic species belongs to the section Staurospermum ; in maturely conjugated specimens this can only be inferred from the genuflexed conjugating ceils, but the young zygospores are sub- rectangular or subquadrate. The four processes present on the zygospores are developed very early, considerably before the zygo- spores are ripe, and are rarely of equal langth ; they are of the same diameter as the vegetative cells, and fit into them very closely. 2. M. (§ Staurospermum) irregularis, sp. n. M. cellulis vegetativis diametro 5-6 plo longioribus, cellulis conjugatis sub- curvatis ; zygosporis maturis irregularibus, subrectangularibus vel trapeziformibus, exospora crassa achroaque, ad angulos in processus longitudiuum varium (nonnunquam cum 1-3 processum usque 29 /a) productis, mesospora crassa, flava vel flava-brunnea, punctata. Crass, cell, veget. 13*5-15 /x; long. max. zygosp. c. proc. irreg. 38-63 /x, lat. max. 42-48 /x. Pungo Andongo. In pascuis spongiosis breve graminosis juxta rapes gigant. prope Catete ; May, 1857. No. 111. The nearest species to this is M. cdpucina (Bory) Ag., from which it is distinguished by its size, its colour, and its curious zygospores. 3. M. (§ Craterospermum) angolensis, sp. n. M. cfespitibus laete viridibus dense intricatis ; cellulis vegetativis diametro 4-5-plo longioribus, pyrenoidibus minimis 4-6 (plerumque 5), serie plus minusve irregulari intra chromatophorum ; zygosporis parvis breviter cylindricis (a fronte visis quadratis), lateribus coucavis, angulis acutis ; cellulis conjugatis genuflexis. Crass, cell, veget. 25-29 /a ; diam. zygosp. 19-21 fx. Pungo Andongo. Ad ramulos Podostemacearum in rivulis (Casalale), inter (Edo(/onium Rothii f. major ; March 1857. No. 105. This species differs from M. Itetevirens (A. Br.) Wittr. chiefly in the chromatophores each possessing a much fewer number of pyrenoids, and in the much smaller zygospores. 4. MouGEOTiA sp. Crass, cell, veget. 19-21 //, ; diametro 4-6- plo longioribus. Huilla. Ad culmos Eleocharidis fluitantis in rivulis de Morro de Lopollo (5300 ped. altit.) ; Febr. 1860. No. 188. Mossamedes. Freq. in stagnis puris ad ripas flum. Bero; Aug. 1859. No. 190. 5. MouGEOTiA sp. Crass, cell, veget. 20-25 //. Huilla. Inter Utriculariam ecalcanitam, Morro de Lopollo; April 1860. No. 179. Conjugation incomplete ; conjugating cells much bent. 2. GoNATONEMA Wittr. (1878). 1. G. tropicum, sp. n. G. cellulis vegetativis diametro circiter 7- (6-8)-plo longioribus ; aplanosporis permagnis, a fronte visis WELWITSGH S AFRICAN FRESHWATER ALG^E. 39 oblique spbericis, cum processu mamillato solido projectente intra extremitates curvatas cellulte ad polum unumquemque, a latere visis globosis cum processibus exacte oppositis ad polos ; sporis membranis tribus, membrana mediana luteo-fusca et scrobiculata, membrana exterior! acbroa et ad polum unumquemque uuus pro- cessuura fit. Grass, cell, veget. 6-7 //■ ; long, aplanosp. sine proc. 27-29 /x, cum proc. 42-46 /x ; lat. aplanosp. 27-28 /x. Huilla. Alga late viridis, lubrica ad rapes submersas de Morro de Lopollo ; Febr. 1860. No. 186. Inter Temnoganietwn hetero- sponim, Morro de Lopollo ; Febr. 1860. No. 172. In paludibus exsiccandis ; April 1860. No. 176. Inter Microspuram Ldfiji-enii, Morro de Lopollo ; May 1860. No. 182. Tbis is a most cbaracteristic species ; spores witb processes of tbis nature are possessed only by two otber algas in tbe order Zyr/nemacctB, viz, Mour/eotia uherosperina and M. irregularis. Tbe consecutive spores, wbicli are very large, are alternately oblique, the cells containing tbem being very slightly bent alternately to the right and left. 3. Pyxispora, gen. n. Cellulte vegetativfe ut in Zipinema, conjugatione scalariformi ; zygosporae tubam conjugantem totam inter filamenta complentes ; zygospore e parte solum contenti cellularum formatae, elliptico- oblongte vel ellipsoidfe cum porca cingente in plauitie diametrorum brevissimorum et rima circumscissa secundum porcam, 1. P. mirabilis, sp. unica. P. cellulis vegetativis diametro 14^-4^-plo longioribus, chromatophoris subdistinctis, pyrenoide parvo subgloboso ellipticove in chromatophoro unoquoque ; tuba conjugante supra porcam zygospore iudistincte visa. Crass, cell, veget. 12-13-5 p.; long, zygosp. 19-23 p, lat. 13-5-17 /x. Huilla. In paludibus exsiccandis ; April 1860. No. 176. The fact that only a portion of the contents of the conjugating cells participates in the formation of the zygospore indicates a relationship to the fam. Mesocarpece, although the arrangement of the chromatophores in the ordinary vegetative cells much resembles the arrangement in the genus Zyynema (fam. Zi/(jnemece). The character of the zygospores is, however, quite unique, and the plant must therefore be placed in a new family, Pyxisporece. 4. Zygnema Ag. (1824). 1. Z.ERicETORUM (Kiitz.) Hansg. in.:I;-c/i/y. Naturw. Landesdurchf. von Buhmen, Bd. vi. 155-6 (1888). Zygogonium ericetorum Kiitz. Phyc. Gener. 280 (1843). Crass, cell, veget. 27-32 /x ; diametro lJ-3 plo longioribus. Pungo Andongo. Inter (Edogonium sp. ad limum juxta rivulum de Casalale ; Febr. 1857. No. 106. Inter (Edogonium Hothii f. major ad ramulos Podostemacearum in rivulis (Casalale) ; March 1857. No. 105. Ad Podostemaceas in riv. de Cabondo ; Febr. 1857. No. 108. Huilla. In udis sylvaticis et apricis inter Monino et lac. Ivan- tala ; April 1860. No. 14. In paludibus exsiccandis ; April 1860. No. 176 ; crass, cell, veget. 27-34 p ; diametro 1-3-plo longioribus. 40 WELWITSCH's AFRICAN FRESHWATER ALG.E. 2. Z. SPONTANEUM Noi'dst. Ah/, et Ch(i)\ Sandi'ic. 17, t. i. f. 23-24 (1878). Z, celluiis vegetativis diametro li-4-plo longioribus ; conjugatione scalariforrai, celluiis fructiferis uon (vel levissime) inflatis : zygosporis plerumque oblongis vel rotundo-ellipticis (raro globosis), membraua crassa el aureo-brunnea, lamina mediana cum scrobiculis magnis ; aplanosporis (cfr. cl. Nordst. 1. c.) zygosporis similibus sed minoribiis, globosis, et membrana tenuiori. Crass, cell, veget. 16-18 f/. ; crass, cell, fructif. 19-25 jt* ; long, zygosp. 24-31 /x, lat. 21-24 ^a. Huilla. Inter Goiiatimema trojncmii, TemnogameUnn heterosponnn, &c., Morro de Lopollo ; Febr. 1800. No. 172. This most interesting species has very remarkable spores both with regard to tiieir colour and markings. The original specimens from the Sandwich Islands described by Dr. Nordstedt had only aplanospores (hence the specific name) ; the African specimens have only zygospores, and on account of their presence it has been required to amend the description. The relationship between the aplanospores and zygospores in this species is in all respects com- parable to that between those of Z. pdchijdcrmnm West; in the latter species the aplanospores are also smaller, globose, and possess a thinner membrane. 3. Zygnema sp. Crass, cell, veget. 15-21 /x ; diametro 3-6-plo longioribus. Pungo Andongo. Cum Scytouemate in Pedra Songue ; April 1857. No. 153. 5. Spirogyra Link (1820). 1. Spirogyra sp. Cellulae vegetativae diametro (23 fx) circiter 3-plo longioribus, extremitatibus uon replicatis, chromatophoro uno, anfractibus 1^ ; zyyosporis ellipticis, polls subacutis, membrana glabra, luteo-fusca ; celluiis fructiferis subinflatis ; long, zygosp. 38-52 jji., lat. 23-30 [a. Prope .S'. arcttt (Ag.)Kiitz. var. catanijoriuis (Hass.) Kirchn. Huilla. Inter alias algas in uligiuosis editioribus prope Hum- pata, Empalanca et Lopollo ; May 1860. No. 15. Not in sufficient quantity for absolute specific determination. 2. Spirogyra sp. Cellulie vegetative^ diametro (36-5-46 fjt.) 2-3- plo longioribus, extremitatibus non replicatis, chromatophoris 2, anfractibus 3-4. Pungo Andongo. Inter Batrachospennuni nigrescens in flum. Cuanza ; March 1857. No. 104. Ad rupes humidas juxta flum. Cuanza; March 1857. No. 156. Golungo Alto. Cellulse vegetativse diametro (43-48 /*) 2-3|-plo longioribus, extremitatibus non replicatis, chromatophoris 2, an- fractibus circiter 4. Freq. in semistagnantibus ad ripas Rivi Quiapoze, Camiuho pr. Mussengue ; Sept. 1855. No. 207. 3. Spirogyra sp. Crass, cell, veget. 44-53 fx. Pungo Andongo. Ad ramulos Podostemacearum in rivulis ; Marcb, 1857. No. 109. Nothing can be made out of the speci- mens with any precision. Chromatophores 3 (?), edges smooth (?), spirals lax. WELWITSCH's AFRICAN FRESHWATER ALG^. 41 4. 8. NEGt.ECTA(H.ajSS.)Iintz. Species Algar. HI {I8i9) ; Eabenh. Fl. Eurup. Alijar. iii. 248 ; Petit, Spirori. \le Paris, 26, t. ix. f. 1-5. Zygnema neylecta Hass. Brit. Freshw. Alrj. 142, t. 23, f. 1-2 (1845). Var. TERNATA (Ripart). .S'. ternata Ripavt iu Bull. Soc. Bot. Fr. xxiii. 162 (1876); Petit, I.e. 26, t. viii. f. 4-7. S. ternata Ripart seems to us to be but a variety of S. neylecta, differing only in its inflated fructiferous cells. The length of the cells agrees in both. Cfr. also W. & G. S. West in Journ. lint, xxxiv. 378 (1896) ; crass, cell, veget. 52-57 jm. ; long, zygosp. 107-127 i^, lat. 68-67 /*. Huilla. Frequentissima post pluv. autumnal, ad margines rivu- lorum prope Lopollo ; April, 1860. No. 185. 5. Spirogyra sp. CellultB vegetativfe diametro (52-61 fji.) l|-2- plo longioribus, extremitatibus non replicatis, chromatophoris 3, anfractibus 1^-2. Pungo Andongo. Inter BatracJiuspenmua niqresccns in riv. Ciiauza ; March 1857. No. 104. 6. S. angolensis Welw. MS. (name with partial description). S. nubeculiformiter cresceus, mox subuatans, sordide viridis, adulta fuscescens ; cellulis vegetativis diametro 1-2-plo longioribus, ex- tremitatibus non replicatis ; chromatophoris 2 (raro 3), latis cum marginibus asperis et pyrenoidibus magnis, anfractibus 2-3 ; fila- mentis fractiferis atro- vel fusco-purpureis, rigidis, cellulis fructiferis non inflatis (vel leviter subintiatis) ; zygosporis magnis, psene cellulas complentibus, ellipticis cum apicibus subacutis, diametro 1^-lf-plo longioribus. Crass, cell. veg. 49-63 ^ ; long, zygosp. 84-100 fj,, lat. 52-57 /^. Loanda. Cum Octogonis aequinoctiali in aquis stagna puris (Cazimba) urbis Loanda; June 1858. No. 124. In stagnis arti- ficialibus (Repressas) circa Loandam ; July 1854. No. 193. Etiam No. 103. The very dark-coloured conjugating filaments and the form of the zygospores cliaracterize this species. S. arcta (Ag.) Kiitz., to which No. 193 was referred by Welwitsch, is a much smaller plant with but one chromatophore, and the conjugating filaments are not dark- coloured. 7. S. Welwitschii, sp. u. S. cellulis vegetativis diametro ^-2-plo longioribus, extremitatibus non replicatis ; chromatophoris 2 (raro 3), magnis, cum marginibus serratis et pyrenoidibus magnis, anfractis arctis, 1-2 ; cellulis fructiferis non inflatis ; zygosporis late ellipticis, diametro l^-plo longioribus, cellulas fructiferas non complentibus. Crass, cell, veget. 65-75 ^ ; long, zygosp. 69-71 fji., lat. 57-58 (A.. Loanda. " Sp. dense agmine crescens, nubecularum amoeniss. virid. ad instar aquis innataas ; in stagnis artificialibus circa Loandam" (c. S. a)iyolensi Welw.); July 1854. No. 103. This species approaches .S'. deciinina (Miill.) Kiitz. (to which Welwitsch had referred it) and S. neylecta (Hass.) Kiitz. ; it differs from the former in its much greater thickness, shorter cells, and larger zygospores ; from the latter in its somewhat thicker filaments, shorter cells, the character of its chromatophores, and in its shorter zygospores. 42 ON SOME SCOTTISH RUBI. The following may belong to this species : — Pungo Andongo. Cellule vegetativfe diametro (63-82 ia.) li-2|- plo longioribus, extremitatibus non replicatis; chromatophoris 3 (?), magnis cum marginibus serratis et pyreuoidibus maguis. In stagnis ad latera rivulorum ; Febr. 1857. No. 206. 8. Spirogyra sp. Cellulfe vegetativfe diametro (67-78 /a) 3-4^ (usque 7)-plo longioribus, extremitatibus non replicatis; chromato- phoris 3, cum marginibus subglabris et pyrenoidibus parvis spar- sisque, anfractibus 2-3 (vel pluribus). Loanda. "In Angolje stagnis agri Loandensis" ; Febr. 1854. No. 125. 9. S. cylindrospora, sp. n, S. cellulis vegetativis diametro l-|-4-plo longioribus, extremitatibus non replicatis ; chromato- phoris 4, angustis, laxissimis, cum marginibus subglabris, an- fractibus 1-3 ; conjagatione scalariformi et laterali, cellulis fructiferis non inflatis ; zygosporis breviter cylindricis, polls rotundatis, lateribus cellularum fructiferarum zygosporas arctis- sime taugentibus, tarn longis quam latis (s^epius longioribus) ; membrana zygosporte matur^a crassa, lutea, lamina mediana crassissima, scrobiculata-punctata. Crass, cell, veget. 70-77 /a ; long, zygosp. 78-98 /x, lat. 70-77 i^; crass, membr. 6-6-5 /x. Pungo Andongo. In stagnis prope Anbilla (Condo) ; March 1857. No. 177. The shortly cylindrical zygospores are very characteristic, fitting the cells like plugs pushed into them. 10. Spirogyra sp. Cellulae vegetativte, diametro (115-126 /^) 1-1^-plo longioribus, extremitatibus non replicatis; chromatophoris multis, anfractibus arctis. Golungo Alto. Freq. in semistagnantibus ad ripas rivi Quia- poze, Caminho pr. Mussengue ; Sept. 1855. No. 207. (To be continued.) ON SOME SCOTTISH RUBI. By the Rev. W. Moyle Rogers, F.L.S. A FIRST visit to Scotland last summer gave me a long- desired opportunity of studying some of the living Rubi north of the Tweed. Numerous bundles of specimens received in the course of the last few years had shown me that the forms most commonly met with in Scotland are practically identical with those tbat prevail in the South of England; but I was hardly prepared to find how general the similarity really is. Day after day, for a month, nenrbj all the brambles that I saw, as I moved about in five counties, were literally indistinguishable from those one commonly meets with in the south. A few were unfamiliar ; glandular foi'ms were exceptionally scarce ; and it was ON SOME SCOTTISH RUBI. 43 a surprise to me to see no R. nisticamis* or Fl. leucostachys* any- where ; but ordinarily each bramble was familiar enough, and might have been growing in England. The only neighbourhood that I was able to explore at all thoroughly was that of Callander, in West Perth, where I stayed three weeks. I found the Callander Crags exceeduigly good bramble ground, and the shores of Loch Earn, Loch Venuachar, and Lake of Monteith, all in W. Perth. In Mid-Perth, the Knock of Crieff and the neighbourhood of Killin and Loch Tay proved to be happy bunting grounds for me, though my visits to them were provoldngly hurried. At Oban (Argyle) I had only two hours, and scarcely more at Balloch (Dumbarton). To Cramond Bridge (Lin- lithgow) I went twice, for two or three hours at a time ; but there brambles were few and far between. In Stirlingshire I had espe- cially unfavourable weather, but under the guidance of Mr. Robert Kidston and Colonel Stirling was able to examine Stirling Castle Hill and the Gargunnock neighbourhood. During my stay at Callander I was helped by my son, F. A. Eogers, who brought me fresh specimens from a few localities beyond my reach. In the following notes W.P. stands for West Perth, M.P. for Mid Perth, A. for the comity of Argyle, D. for Dumbarton, L. for Linlithgow, and S. for Stirling. From all the places named I saw last July newly gathered pieces, and, with very few exceptions, the living plant in situ. As on so many previous occasions, I am again indebted to Dr. Focke for helping me to name forms not before certainly detected in Britain, and for reducing my other difiiculties. liubus Idmis L. The ordinary form was remarkably abundant, and very generally distributed ; and on Callander Crags I also saw several patches of var. aspeirinnis Lees (with "white" fruit). SUBERECTI. ii. /7',s,s».s Liudl. W.P. Locally abundant in open heathy places about Callander, L. Vennachar, Stralhyre, and L. Earn. M.P. Knock of Crieff. II. sube rectus Andevs. W.P. In two spots near Callander ; in one place between Strathyre and L. Lubnaig. M.P. By L. Tay, one bush. Nowhere seen in any quantity. E. /ilicatus W. & N. W.P. Fairly widespread, but not usually in great quantity, except between Callander and Lake of Monteith ; the Crags ; near Lochs Vennachar, Lubnaig, and Earn ; . near Aberfoyie. M.P. Knock of Crieff. D. Balloch. B. Boi/ersii Linton. I think the most abundant and most con- spicuous suberect bramble in W.P., though on the Crags and in two or three other places E. Jissus may be locally as plentiful. From L. Earn to Callander, and from Callander to Aberfoyie, occurring * Ayr, Kincardine, Clyde Isles, and Hebrides are, I believe, the only Scottish counties from which R. riisticanus has yet been recorded; and I know of two only (Berwick and E. Sutherland) for JR. leticostachiji>. 44 ON SOME SCOTTISH RUBI. frequently and ■witbout variation, so as to constitute one of the marked features of the Buhus-Qora, of the vice- county. After careful study of the living bushes, I am inclined to think this species almost or quite as near to R. Jissits as to B. plicatiis ; and although I occasionally came on all tbree as near neighbours, I saw no inter- mediate forms. It is evidently a very early fiowerer, and all the later panicles are more leafy and prolonged than the first. Its leaves are greyish green, and the whole plant of a paler tint than its allies. M.P. Knock of Crieff. jR. latifulius Bab. L. Near Bridge of Cramond ; in very small quantity, and not quite so strongly marked a plant as the /.'. lati- folius of Anglesea, though not, I think, specifically distinct from it. As compared with the brambles of most other groups, suberect plants seem to be exceptionally abundant in Perthshire ; but even there, and still more in other parts of Scotland, the number of species as yet found in this group is comparatively small. Rhamnifolii. I should suppose that quite half of the bramble plants that I saw growing in Scotland last July belonged to this group. More than half of the Rhamnifolians known for Britain occurred in the localities I visited, and many of them in great quantity. B. incurvatns Bab. W.P. By L. Earn ; well-marked examples of this species, though with narrower panicle than is usual in the typical Welsh plant. jR. Lindleianus Lees. W.P. By L. Earn, in great quantity ; near Aberfoyle ; Callander Crags. M.P. By L. Tay, abundant. D. Balloch. Just the typical plant everywhere. R. rhamnifoUns W. & N. (sp. collect.). W.P. Only on the Crags, and there in no great quantity. A rather small form, not very con- spicuously different from the common British plant [B. cardiopJnjUus Lefv. & Muell.), but I thought showing rather closer affinity with B. pulcheniiitus Neum. than is usual in England. S. Near Stirling, by the King's Pai-k and the Cemetery (B. canliophi/llns). B. lumoralh P. J. Muell. W.P. Black Cock Hill, near Callander. I did not see this growing, but my son brought me fresh specimens. I think the ordinary Dorset form. B. pnlcherrwms Neum. W.P. By L. Vennachar ; Strathyre ; Callander ; not very abundant, but quite characteristic. A. Oban ; very luxuriant and handsome plants, close to the town and in rocky places above. D. Balloch, by L. Lomond. R. ScHEUTZii Lindeb. [= B. Lindehergu P. J. Muell., var. viridis Aresch.). Dr. Focke has thus named one of the most abundant and most constant brambles seen by me in Mid- Scotland, and he adds, "As far as I can see from dried specimens, exactly the same as the Swedish plant." I had been able to send him characteristic pieces in excellent condition, with careful notes from the living plant, and had called his attention to its affinity with his B. Maassii; and this drew from him the further remark, " B. Matissii is very near it." W.P. Exceedingly common about Callander, L. Vennachar, ON SOME SCOTTISH BUBI. 45 Lake of Monteith, and between it and Aberfoyle. M.P. Knock of Crieff. S. About Stirling and Gargunnock ; in great quantity. D. Ballocb. I also bave dried specimens collected by tbe Rev. E. S. Marsball last summer at Crianlaricb (M.P.). I do not remember baving ever seen living busbes of tbis species out of Scotland; but some 1893 and 1895 specimens from Mr. J. E. Grififitb, collected at Valley, near Holybead (Anglesea), seem identical -witb tbe Scottisb plant. I sbould say tbat its nearest allies in our list are B. jndcherrinnts Neum. and R. Lindeber(jii P. J. Muell. ; but its peculiar leaves, glabrous stem, and very different colouring make it recognizable from botb at a glance ; nor do I tbiuk it possible for any careful observer to confuse tbe living busb witb otber British forms. Tbe following are its most marlied characters : — It grows in large, ratber low, circular masses, wicb glabrous sbining stem, green rbamnifolian nearly glabrous leaves, a remarkably broad sub- rotund-cuspidate terminal leaflet, and a long very narrow more or less flexuose panicle witb large flowers, long stamens, pinkisb-lilac petals, and grey-green sepals, wbich are only loosely reflexed on tbe fall of tbe petals, and become more or less subpatent afterwards. R. Lmdehergli P. J. Muell. W.P. In tbe bigber part of tbe Callander Crags ; just tbe continentcil and ordinary Englisb form. Also brought to me fresh by my son from the neighbourhood of Aberfoyle. R, duwnoniensis Bab. A. Oban ; extraordinarily abundant in rocky places above tbe town, in very handsome wide-spreading masses, usually to the exclusion of all otber brambles. Tbis is proving to be one of our most widely distributed and most constant species. R. villicaulis Koehl. The form wbich I described in Juurn. Bot. 1894, 43, 44, as "var. c. insularis (F. Arescb.)'' is one of the most abundant and most characteristic of Scottisb brambles. As I showed when describing it, it is very distinct from vars. Sehneri and calvatm; but I had to own then that I was "at a loss to name any very defiinte characters by which to separate this var. from tbe typical plant." Now, on my sending to Dr. Focke a good series of the Scottish form labelled " /i'. villicaulis Koehl. var. insularis (F. Arescb.), or form near it," he writes to me, " Tbe form called /('. insularis Arescb. is the true typical R. villicaulis, first described from Silesia, E. Germany. The common form of N. Germany is much more like your English R. calvatm." I am not sure tbat we have quite this " common form of N. Germany " in Britain ; but we have something very near it, if not identical with it, in S. Dejvon, and probably sparingly elsewhere. Omitting tbat for the present, our list of forms is reduced to typical R. villicaulis (= R. insularis F. Arescb.), and tbe two very strongly marked varieties or sub- species, R. Selmeri Lindeb. and //. calvaius Blox. R. calratus has not yet been observed in Scotland, but R. Selmeri is extraordinarily abundant, and tbe typical plant hardly less so. Thus in W.P. tbis type is especially strong and handsome on tbe Crags and elsewhere about Callander, extending to L. Earn northwards and to Aberfoyle westwards. I also saw it about Killin in M.P., at Oban in A., and 46 ON SOME SCOTTISH RUBI. near Cramond Bridge in L. ; and I have received dried specimens of it in most of my Scottish Eubus parcels. Other distinctive characters which may be added to my description of this form in Jourji. But. 1894, 44, are — Stem hairy, with crowded long short- based straight prickles, and petals white or very faintly pinliish, narrow, long-clawed. IL Selmeri seems to be the commonest fruti- cose bramble in Scotland, as in most parts of the British Isles. Wherever, in the five counties I visited last July, I saw brambles in considerable quantity, I invariably came on this; and usually as one of the most conspicuous, as always one of the most easily recognized forms. For this var. therefore I abstain from giving localities in detail. Ii. rho)nbifuliiis Weihe. I think certainly a strong form of this in one place between L. Vennachar and Callander (W.P.). SiLVATICI. It. iiiacruphi/llus W. & N. (sp. collect.). Not seen in good quantity, nor in typical form. W.P. On a plant occurring between Callauder and Lake of Monteith, which I thus named somewhat hesitatingly, Dr. Focke writes, "/?. viticrophi/llns: a small and very hairy variety, corresponding to a similar variety of R. pi/raniidalis." M.P. J3et\veen Killin and L. Tay, for some distance along a steep and partially shaded bank, occurs a large handsome form with glandular panicle and ascending sepals. Here also Dr. Focke agreed with me in giving this name in an aggregate sense, adding the note, "leaves tapering towards the base as in E. HchlechtendaUi, sepals patent after flowering. Somewhat off type." S. Garguunock, wood-border. A weak shade form. R. hirtifoUus Muell. & Wirtg., var. danicus Focke. Dr. Focke accepts this name that I gave to a frequent and very handsome Scottish bramble, for which I as yet know no certain English locality, though I have so named Westmeath specimens collected by the Eev. E. F. Linton in 1895. The following is Dr. Focke's note on my W.Perth specimens: — " This is indeed my Ruhus danicus, which I put as a variety under R. hirti/ulius Muell. & Wirtg. It is a plant that is nearly intermediate between R. macruphyllus and R. pijrainidalis. Terminal leaflet much more rounded than in either species." It seems to me much nearer to var. Schlechtendalii than to typical viacrophijlliis, though distinguished from both without difficulty by the ascending sepals (common to it and to R. hirtifoUus) and the very differently shaped terminal leaflet. This more roundish cuspidate-acuminate terminal leaflet is also one of the characters by which danicus is distinguished from typical Jiirtifulius, together with the more hairy under surface of the leaves and the luxuriant panicle with more conspicuously hairy rachis and more showy flowers. The bracts are usually somewhat gland- ciliate, and the pedicels occasionally a little glandular; but generally it seems a more nearly eglandular plant than the type, though that also, like many of its allies, is variable in this respect. The petals are white, and the sepals reflexed in flower, but quickly becoming patent. W.P. Common ; Callander, L. Earn, Lake of Monteith, ON SOME SCOTTISH RUBI. 47 &c. M.P. Knock of Crieff; a form intermediate between type and var. I have also seen dried specimens collected at Crianlaricli in this vice-county, and at Dalmally in A., by the Eev. E. S. Marshall ; at two localities in S. by Messrs. Kidston and Stirling; and on the Island of Coll, M. Ebudes, by Mr. S. M. Macvicar ; and I think now that a plant collected at Tongue, in W. Sutherland, by Mr. F. J. Hanbury, which I formerly put to my R. moUissiimis, belongs more probably to R. dmiicus. R. jyyranndalis Kalt. W.P. By L. Earn, a hairy form with long narrow leaflets. M.P. .Near Killin ; the type. Egregii. R. mucronatus Blox. W.P. Frequent and locally abundant. The type. Callander; about L. Venuachar and L. Earn ; Strathyre; near Port of Monteith. E. MELANOXYLON Muell. & Wlrtg. W.P. Fairly common, and seemingly distinct, in spite of considerable variation in armature. Callander Crags ; near L. Vennachar and L. Earn ; moor between Callander and Port of Monteith. From all these localities, except the last, Dr. Focke has seen my specimens and thus named them, adding, "The species is not well known, and its limits are quite uncertain. Your plant from Scotland, however, is more like the original specimens than anything I met with under this name." A translation of Dr. Focke's brief description of this species (Koch's St/ii. Fl. Germ. ed. 3) will be found in Journ. Rot. 1892, 268, and a fuller account in Si/ii. R. G. 257, 258. It seems nearly allied to Pi. mucronatus Blox. and R. podophyllus P. J. Muell., coming between them and the more glandular states of R. calratus Blox., and dis- tinguishable from the two former by its strong larger prickles, more mixed armature, gradually acuminate leaflets, compound panicle, and dark purplish-brown colour of stem and rachis ; and from R. calvalus by the close even toothing and soft under surface of its more roundish-acuminate terminal leaflet, as well as by the mixed armature. The great range of variation in armature ob- servable in the different bushes of this species is of course charac- teristic of the group in which we find it ; but at times it is so marked as to cause no little difficulty. I have no other British specimens that quite match these Scottish ones ; but a plant that the Rev. A. Ley finds at Moseley Mere, Herefordshire, may possibly belong to the aggregate species. Of the Derbyshire plants that have been thus named, Bloxam's from Dovedale is certainly typical R. radala Weihe, and I agree with Messrs. Purchas and ^V. R. Linton in thinking that the Shirley and Edlaston one is more probably a glandular state of R. calvatiis Blox. Mr. Painter's Staffordshire plant (Horton, and Lask Edge, Biddulph Moor), for which Dr. Focke formerly suggested this name, looks (if I may judge from rather indifferent specimens) as if it would go better to R. podopliijllus P. J. Muell. ; while my very distinct Hants and Dorset plant, described as R. melanoxylon by Prof. Babington in Journ. L'of.-1890, 133, is R. melanodermis Focke. R. infestus Weihe. W.P. About Callander, in plenty ; by 48 ON SOME SCOTTISH RUBI. L. Vennachar ; between Callander and Aberfoyle, in several places. S. Ou Castle Hill (in' one place); Gargunnock, in good quantity. Everywhere a strong handsome characteristic form. R. Drejeri G. Jensen. W.P. By Lochs Earn and Vennachar. S. Stirling, on Castle Hill, and among rocks beyond King's Park. Thus named for me by Dr. Focke, with the additional note (in letter), "i?. Drejeri, I think, is exactly the same plant as the type from Slesvig and Denmark." This is not quite the plant described by me in Jouni. Bot. 1892, 271, under the same name, then suggested for it by Dr. Focke ; that being the li. Leyaniis Rogers, Loud. Cat. ed. 9, 482, a widespread and locally abundant form with us, which appears to be unknown on the Continent. The true R. Drejeri, as I have seen it in the living bushes in Scotland, and in dried Slesvig and Holstein specimens of Messrs. Gelert's and Friderichsen's collecting, differs from E. Leyanus in its dull- coloured more hairy stem, its chieBy 3-nate leaves and shorthj pointed roimdish or ohocate leaflets, with less formal outline looser toothing and harsher greener under surface, its much longer and more cylindrical panicle with hairier and more densely prickly rachis and broader less attenuate sepals. Thus the shining neat look and yellowish colour so chai'acteristic of B. Leyanus give place to a rough shaggy look and dull brownish colour in R. Drejeri, and the close alliance between them is by no means striking at first sight. On the other hand, it must be owned, a few of our many widely distributed Leyanus bushes (and especially some of the Welsh and S. Devon ones) are in some of these particulars less distinctly different ; and so, I think, that form had best be placed as a strongly marked variety under i?. Drejeri. Whether the typical plant of N. Germany occurs in England as well as in Scotland, I cannot positively say ; but a Loxley (Yorks.) specimen that I saw a few months ago (before my visit to Scotland) in the " B. New- boiddii" packet in the Cambridge University Museum may, I suspect, represent LI. Drejeri better than it. Newbouldii, as lately understood amongst us. I may add, a very distinct-looking Irish form that I have received from two independent collectors (Revs. C. H. Waddell and H. W. Lett) from Saintfield and Aghaderg, Co. Down, might well rank as a second variety of Drejeri, under the name hibernicus, var. n., distinguished from both type and var. Leyanus by its nnich laxer and more slightly armed but very glandular and very lovg panicle with straighter prickles and nearly patent branches, together with leaf- toothing remarkably loose and siiniate, the more prominent teeth being frequently patent or recurved. Its peculiar panicle is as conspicuously narrowed above as in jR. fjeyanus, and its leaflets as long-pointed. The specimens in my herbarium were collected in 1894 and 1895. The confident restoration to our British list of typical LI. Drejeri and its ally Pi. melanoxylon at the same time and from the same p-irt of Scotland is remarkable. Radul^. B. radula Weihe. The only species in this large group that I saw in Scotland. Locally abundant, and representmg our three ON SOME SCOTTISH RUBI. 49 best-marked British forms. Typical radula : — M.P. Knock of Crieff. S. Castle Hill, Stirling ; Gargiinnock ; plentiful. D. Bal- loch. Var. nmiUcanns Rogers: — W.P. Not seen growing by me ; but my son brought me fresh specimens from the Aberfoyle neigh- bourhood. Var. echinatoidt's Rogers : — Locally the most abundant form, as seems usual in the north. W.P. Callander; by L. Ven- nachar; near Lake of Monteith. M.P. Between KilUn and L. Tay. S. Gargunnock ; in considerable quantity. L. Near Cramond Bridge and the R. Station. In the last locality not quite the usual form. At Gargunnock also a very handsome form rather approaching my var. raduloides of 11. aixjlosaxonicus Gelert. KOEHLEEIANI. I saw no well-marked representatives of this group ; but at Ballocli (D.), by the shore of L. Lomond, occurs in quantity what may be a form of my infecundus var. of R. rosaceus W. & N. ; and on the hill opposite the Crags at Callander and near the Lake of Monteith I saw what seemed a weak form of R. Koehleri W. & N., var. i^allidus Bab. Bellardiani. R. hritannicus Rogers. W.P. Callander Crags and neighbour- hood, in plenty ; by L. Earn, and near Lochearnhead R. Station. M. Knock of Crieff; in considerable quantity. S. Castle Hill, Stirling (only one large patch seen for certain). A strong, very handsome bramble in sunny places, and, I believe, a well marked distinct species. The sole representative of the group that I met with. CiESII. R. coriiUfoUm Sm. (sp. collect.). W.P. By L. Earn. M.P. Near Killin. S. Castle Hill, Stirling; in some quantity, and part of it fairly typical (i.e. R. snbhistris Lees). R. casiits L. (sp. collect.). W.P. By L. Earn; near Callander. M.P. Near Killin. S. Castle Hill, Stirling. L. Near Cramond Bridge. Of the species and varieties referred to in the foregoing notes, I saw, in July, 1896, either the living bushes or (in tbe few instances where my son was the sole collector) pieces freshly gathered from the living plant. I add two lists which may be of some interest. In these, where the name of a county or vice- county in brackets follows the name of a plant, it is implied that that is the oidi/ Scottish county for which the species or variety referred to is known or has been reported. (1) Other Rubi from Scotland, dried specimens of which I have examined within the last four or five years : — R. IdceuH var. ohtusifolius Willd. R. nemoraJis var. (jlahratus Bab. R. j)UcatHs var. hemhtemon P. J. (Stirlmg). Muell. R. f/ratiix Focke. R. nitidus W. &N. (Westerness). R. 'carpini/oliuH W. & N. Journal, of Botany. — Vol. 35. [Feb. 1897.] k 50 NOTES ON THESPESIA. B. macrophyllus var. Schlechten' B, rosaceusyax.wfecimdas'Rogevs, (lain Weihe. (Westerness). B. SpremieVd Weihe. \B. dumetorum vai'. / diversifolius B. echhiatns Lindl. Lindl. (E. Ross).] [B. ? Newboiddii (Fife).] ii. ctfstMs var. a?T si/lvaticumlj. Batrachian Ranunculi are scarce in Coll, but common in Tiree. Ana- gallis tenella L. is vei'y common on both islands. No Hieracia were seen on either island, except H. Pilosella L., on the sand dunes on both. Drusera rotundifolia L., and D. intermedia Hayne are common SHORT NOTES. 57 to both, the former the more common in Tiree, the latter much the commoner in Coll, occurring locally in abundance, and sometimes as a caulescent form. D. anglica Huds. was not seen. Among the Tiree plants should have been mentioned Plantcujn Coroiwptis, var. mantima Gren. & Godr. It is a distinct-looking plant with broad, thick, Heshy leaves when growing. Mr. Arthur Bennett, on naming it as above, remarked, " it is certainly the var. marithna Gren. & Godr., Flore de la France, vol. ii." It has not been previously recorded from Britain, I believe. There were 357 species and varieties noticed on the two islands; of this number there were upwards of sixty limited in each case to one island, but another visit will of coarse alter this relationship considerably. The number of species not previously recorded for the vice-county was about forty, as I am informed by Mr. Bennett, to whom I am greatly indebted for having examined and named several bundles of plauts sent to him in the fresh state from both islands. The Characece gathered were Cliara fragilis Desv., and var. delicatula Braun, C. aspera Willd., and var. siihinermis Kuetz., also a form approaching var. curta Braun, C. contraiia Kuetz., C. hispida L., C. vulgaris L., and var. papillata Wallr., Nitella translucens Agardh, N. opnca Agardh, all of which are, I believe, new to the vice-county, with the exception of 0. fragilis. I am indebted to the Messrs. Groves for having kindly named most of the above. So far, it seems as if the flora of Tiree, especially, resembled more that of the Outer than that of the Inner Hebrides, at least of those islands from Mull to Skye. Tiree and Coll have in the main the same geological formation (Lewisian gneiss) as the Outer Hebrides, while the islands from Mull to Skye aie mainly composed of tertiary basalts, and have their floras corresponding to one another closely ; but further searching is necessary before an accurate estimate can be made of the relative effects of geo- logical formation and of latitude. Since the above was written, the following additional Characece from Tiree and Coll have been kindly named for me by Messrs. Groves : — Cliara fragilis, var. delicatula Braun ; C. aspera, var. isubiitermis Kuetz. ; also a form approaching var. curta Braun ; C. cuntraria Kuetz. ; C. hii:pida L. ; C. vulgaris, var. papillata Wallr. SHORT NOTES. New Fungal Disease of Kape. — A few weeks ago I was sent some leaves of rape, extensively diseased, from near Tullamore, King's Co. These leaves were covered with pallid spots, about a third of an inch in diameter, but usually becoming confluent, and so forming much larger patches. In these the parasite had almost entirely destroyed the chlorophyll, rendering the part nearly or quite transparent. Microscopic examination revealed numerous long slender conidia, at once suggesting Fumularia ; but as none of the 58 SHORT NOTES. species described in Saccardo's Syllnr/e seemed to agree with the present form, and as noue were described as being parasitic on rape, I forwarded specimens to Mr. Massee, who considers it " a typical Puimulana, but there is no described species that agrees with it, whicii I should have no hesitation in considering a new and very fine species." I accordingly venture to describe it as new. The only species of Ramnlaria parasitic on Crucifers are those on Cochlearia and Armoracia, and they differ markedly from the present species. Ramularla rapae, sp. n. Spots irregular, soon coalescing into large patches, pallid, transparent. Hypha scarcely distinguishable; conidia fasciculate, very long and slender, slightly curved, obtuse, 40-60 jj, by 1-2 /x, usually triseptate, hyaline. The chief charac- teristic is the extreme length and slenderness of the conidia. Type specimens have been sent to the Herbaria at the British Museum and Kew, and to the National Museum, Dublin. — Greenwood Pim. Euphrasia Salisburgensis Funk, in Galway. — In August, 1892, while botanizing in the rough limestone country by the south- eastern shore of Lough Corrib, near the little village of Menlough, we noticed a curious-looldug Euphrasia, and collected a few speci- mens of it. These were sorted away and forgotten until recently, when, having occasion to turn through our Euphrasia cover, we were struck by their resemblance to Mr. Townsend's figure and description of E. Salisburgensis in this Journal for 189G (p. 442, t. 363). We have forwarded specimens to Mr. Townsend, who writes: — "They are more typical than the Mayo plant gathered by Mr. Marshall ; bracts narrower ; teeth longer, more patent, and aristate. The finding of this species in another county is a very valuable confirmation of Euphrasia Salisburgensis Funk being native in Ireland." — H. & J. Groves. Hypericum lixarifolium in Carnarvonshire. — In his recently published (but undated) Flora of Anglesey and Carnarronshire, Mr. J. E. Griffith apparently refuses to admit the claim of Hypericum li)i(irifoliuni Vahl to rank as a Carnarvonshire plant, as he omits it ffom the "List of Species not recorded in Watson's 2'op. Bat. for Carnarvonshire." In the text (p. 28) he says of it : " This plant is stated in the Journal of Botany, June, 1889, to have been found on a rocky bank at the angle of the road to Bodfean from Pwllheli. Mr. J. LI. Williams has searched the place carefully in 1889, and I have been there in 1891, but neither of us could find it." I am much surprised at the failure of Mr. Williams and Mr. Griffith to find the plant at the spot indicated, for although, when I discovered it on July 19th, 1888, it was _by uo means abundant, yet it certainly was in sufficient quantity to render its accidental eradication ex- tremely unlikely, and, as a matter of fact, it did not disappear, for on July 23rd, 1894, five years after I first found it, Mr. G. Goode, of Cambridge, visited the locality and readily found tlie plant in exactly the same place. He gathered some tine specimens, one of which he sent to me. As there can hardly be any doubt of the nativity of this species in such a remote spot, I think it will be FLORA OF SYRIA, PALESTINE, AND SINAI. 59 admitted that H. linanfulium — to my mind one of the most in- teresting constituents of the Carnarvonshire flora, owing to the remarkable extension given to its range in Great Britain by its occurrence in North Wales — has a very much stronger claim to be regarded as a native of that county than Mr. Griffith seems wilhng to allow. — J. W. Cakr. [As Prof. Babington stated in his note {J own. Bot. 1889, 185), one of the specimens originally collected by Mr. Carr is in the British Herbarium of the Natural History Museum. Mr. Griffith's Flora was published in 1895. — Ed. Joukn. Bot.] NOTICES OF BOOKS. Flora of Syria, Palestine, and Sinai. By the Eev. G. E. Post, M.A., &c., Syrian Protestant College, Beirut, Syria. 8vo, pp. 919, figg. 441, map. Price £1 Is. Od., post free from the Author, as above. There are many who will welcome this handbook, the cheapness of which is remarkable. The English-speaking traveller in Palestine who possesses some smattering of botany, as well as the home student who finds it convenient to have at his elbow some com- pendious and not too costly summary of the flora of auy region of interest, will be grateful to Dr. Post for this work, which has been produced, as his preface informs us and as we can readily believe, under circumstances of considerable difficulty. The formation of a herbarium, the undertaking of numerous and costly journeys, can have been no trifling addition to the work of a man whose time was already fully occupied ; and it was rendered more difficult, although that difficulty was partly overcome by the help of brother botanists more fortunately situated, by the absence of any large reference library — an indispensable adjunct, one would have thought, to the satisfactory carrying-out of such an undertaking. "The printing, which has been achieved in spite of the limited typographical resources of the Mission Press, has been a labour of no trifling magnitude"; "the task of drawing most of the illustrations, and superintending the execution of the woodcuts, has fallen on him." Dr. Post trusts that "a lenient judgment will be passed on im- perfections"; but it seems to us that these, where they exist, are but few, in comparison with the interest and importance of the contribution to the Flora of the Mediterranean region for which lie has made us his debtors. The district embraced by the book extends from the Taurus to Eas Muhammad, and from the Mediterranean to the borders of the Syrian and Arabian Desert. The volume begins with an intro- duction— or, more strictly, with the somewhat numerous "addendcX," consisting mainly of plants which have been discovered since the printing of the Flora was begun in 1883. Then comes a general analytical key to all the orders ; special keys are also provided to the larger tribes and genera. The species, to the number of nearly 60 THE TRUE GRASSES. 3500, are carefully described ; " many of the latter," says the pro- spectus, "are new to science." In connection with these we fear some difficulty may arise, as it is not clear what meaning Dr. Post attaches to "sp. uov." For example, on reading '' Statice palmi/- rensis, sp. nov.," one would think that plant was here first published; but following the name is a reference to " Plautae Postian. fasc. iii. p. 16" — in which pamphlet the species was included in 1892. It IS hardly fair to demur to the omission of bibliographical references to the species, but we think the author might have been more explicit as to his own discoveries. " Atrijil ex Amanum 'Post,''' for example, may either be a novelty here first published, or a species previously described by him elsewhere ; and numerous species are in this doubtful condition, notably among the addenda. The Jackson of the future will need to examine the volume carefully, lest he should overlook some of the novelties. Such Scriptural plants as can be identified with any degree of certainty are noted in the text ; and the Arabic names, even the most trivial, have been carefully collected. The descriptions of the species seem to have been drawn up with care, mostly from living specimens ; the distribution of each is briefly laut sufficiently indi- cated. The cuts are the least satisfactory feature of the book. Allow- ance must of course be made for the difficulties attending their production, but it seems to us that they are selected on no principle, and many of them are of very slight value. They must have added considerably to the cost and trouble of production, without, as it seems to us, adding materially to the usefulness of the book. But Dr. Post is entitled to the thanks of botanists for this cheap and convenient enumeration, and we trust that its sale will in some measure compensate him for the time, trouble, and cost which he has expended upon it. J. B. The True Grasses. By Eduard Hackel. Translated from Die Natilrlichen Pjianzenfamillen by F. Lamson Scribner & Effie A. SouTHwoRTH. Westminster : Constable. 1896. 8vo, pp. viii, 228, tt. 110. Price 10s. 6d. Everyone who works seriously at Grasses knows Eduard Hackel as the greatest living authority on the subject, and knows that his account of the order in Engler & Prantl's Pfianzenfamilien is the best and most scientific which has hitherto appeared. We wish for the credit of the English publisher that that were the extent of the student's knowledge. But anyone who preferred an English translation has had it within his reach for the past six years. A botanist who is particular as to the shade of green in which his books are bound, or who prefers somewhat stouter boards, will welcome Messrs. Constable's "new" and extensively advertised volume. He who is not so fastidious will stick to Messrs. Holt's publication of 1890. When we received by the penny post the announcement of this "new" work, we expected at least an edition brought up to date, which would take note of j-ecent and important ARTICLES IN JOURNALS. 61 contributions to agrostology by workers in our own country. We cei-tainly had a right to expect something beyond a re-issue of the old slieets with a slightly different binding — for such is the book now under review. If the transfer of the sheets from a New York to a London house means that the translation was selling badly because English workers are quite able to use the German original, we are glad ; for the sooner our systematists recognize the fact that ability to read German is an essential towards good work, the better for them and the better for botany. A translation, under such circumstances, is an edition tie luxe, a weakness for which may be pardoned. To the wealthy and extravagant, who possess not the American issue, we would heartily recommend the one in question at the present moment. " True Grasses " are what we understand by the natural order Gmmineip. of Bentham & Hooker's Genera Plantanim, and the arrangement adopted by Bentham in that work is the basis of Hackel's system. After the number of each genus, the translators insert its number in Bentham's arrangement. This facilitates reference, and shows the diversity between the two systems. It also shows what a very excellent piece of work Bentham's was, considering the material at his disposal, and the confusion in which he found this most difficult of orders. For it is surprising to note what a great amount of agreement there is in the limitation of genera in the two cases. As Sir Joseph Hooker points out in his introductory remarks to the GraminecB of the Flora of British India, it is in the reduction of species and the working out of synonyms that the student of the family will find that his work chiefly lies, and the painstaking manner in which this has been done in the two recently published portions which form the completion of the Indian "Flora" make the monograph of Graminece perhaps the most valuable in the whole work. A. B. E. ARTICLES IN JOURNALS.- A7in. Scottish Xat. Hist. (Jan.). — J. W. H. Trail, ' Florula of waste ground at Aberdeen.' — A. Bennett, '■ J uncus tenuis in Wester- ness.' — S. M. Macvicar, ' Flora of Eigg.' Bat. Centralblatt (No. 1). — S. Ikeno, 'Vorliiufige Mittheilung iiber die Spermatozoiden bei Ci/ras revoluta.' — (Nos. 1-3). W. Fut- terer, ' Zur Anatomie und Entwickeluugsgeschichte der Zitu/ihera- cea: — (Nos. 2-3). S. Hirase, 'tJber das Verhalten des Pollens von Ginhjo biloha.' — (Nos. 2-4). E. Kiister, 'Die anatomischen Charaktere der Chrysobalaneen ' (1 pi.). Bot. Gazette (Dec. 24). — B. T. Galloway, 'A rust and leaf casting of pine leaves ' (2 pi.). — L. H. Bailey, ' The Philosophy of * The dates assigned to the numbers are those which appear on their covers or title-pages, but it must not always be inferred that this is tlie actual date of publication. 62 BOOK-NOTES, NEWS, ETC. Species-making.' — J. C. Arthur, 'Laboratory app.irafcns in vegetable physiology' (2 pL). — F. D. Bergen, 'American Plant-names.' — C. V. Piper, ' New Washington Plants.' — Id., 'Another Compass- plant' [Wyethia amplexic/ailis). Bot. Zeitung (Jan. 16). — H. Solms-Laubach, ' Ueber Exormo- theca Mitten, eine wenig bekannte Marchantiaceengattimg.' Bull, de VHerb. Bnissier (Dec). — H. Schinz, &c., ' Beitrage zur Kenntnis der Afrikanischen-Flora ' (cont.). — J. Briquet, ' Frag- menta Monographic Labiatarum ' (concl.). — R. Cliodat, ' Sur la Flore des neiges du Col des Ecandies/ (1 pi.). — Id., ' L'action des basses-temperatures du Mucor Mucedo.' — Id., ' Polygalaceae novse parum cognitae.' Bull. Torreij Bot. Club (Dec. 28). — E. G. Britton, Rusby's Bolivian Mosses. — -C. MacMillan, 'Formation of Circular Muskeag in Tamarack swamps' (3 pi.). — E. P. Bicknell, ' N. American species oi At/rlmonid' (2 pi.). — Id., * Geum Canadense flavum a valid species.' — L. M. Underwood, ' Terminology among the orders of Thallophytes.' — T. F. Allen, New species of Nitclla (3 pi.).— G. McCloskie, ' Internal Antidromy.' Erythea (Dec. 19).— W. A. Setchell, 'The Elk-Kelp' {Nereocystis gigantea; 1 pi.). — Id., 'Notes on Cyanophycea.' Gardeners' Chronicle (Jan. 23). — Bulbophyllum Ericssoni (fig. 16). Journal de Bntanique (Dec. 16). — R. Chodat, ' Sur la structure et la biologic de deux Algues pelagiques ' (concl.). — A. Frauchet, ' Compositfe novfe ' (cont.). — E. Roze, 'Amylotrogus, gen. nov.' (Myxomycetes). — (Jan. 1). E. Drake del Castillo, ' Les Araliees des lies de I'Afrique occidentale.' — C. Sauvageau, ' La sexualite des Pheosporees ' (cont.). — E. Bonnet, ' Le Haricot avant la decouverte de I'Amerique.* Oesterr. Bot. ZeitscJirift (Jan.). — W. Lipsky, Enphorhia soongarica auf der Balkan-halbinsel.' — K. Fritsch, ' Saponaria Wiemanni [casspitosa x lutea).' — A. Waisbecker, ' Flora des Eisenburger Comi- tates.'— F. Bubak, 'Zur Pilzflora der Umgegend von Hohenstadt in Mahren.' — L. Dergane, ' Zwei vielverkaunte C/-oci6.s-Arten der Krainer Flora.' — F. J. Slavicek, 'Morphologische Apliorismen iiber einige Coniferen-Zapfen ' (concl.). BOOK-NOTES, NEWS, dc. The dearest publication we have seen is No. 12 of Mr. Christy's New Commercial Plants and Drugs, which deals with Dimorphandra Mora. It consists of six pages (without wrapper) ; the first is occupied by the title, on the back of which is a plate ; then follow 3^ pages of letterpress. The plate is adopted from the figures published in Trans. Linn. Soc. vol. xviii., and about half of the letterpress is reprinted from the description in the same place. Mr. Christy says, "in the library of the Linnean Society I dis- covered (!) that a paper had been read," &c., but he omits any BOOK-NOTES, NEWS, ETC. 63 reference to its place of publication. The only additional information supplied by the author is that the "nuts" of the Dimorphmulra ap- peared in commerce last year as "kola nuts." Mr. Christy is " continuing the research with the hopes of being able to find that the Diniorphandra Mora contains some food product which may be turned to account. Perhaps," he adds, "I may receive this before this paper is printed." But he didn't, and we may be allowed to wonder why the paper was printed at all, and still more why a shilling should be charged for it. A Parliamentary paper has just been issued regarding a new food for cattle — a compound of molasses and peat powder — which has been perfected in Germany. The latter ingredient, we are informed by the Daily Graphic of Jan. 15th, is obtained from "the dried roots of the familiar mosses ' sphagnum cuspidatum ' and ' eriophorum latifolium.' " Sphagnum has no roots, and Erio- phorxim is hardly a moss. Moss-STUDENTS will notc with satisfaction the appearance of Part xvii. of Dr. Braithwaite's British Moss-Flora (London : 303, Clapham Eoad, S.W. pp. iv, 36 ; tabb. 85-90. Price 6s.), in which is begun the consideration of the pleurocarpous mosses. The first family treated — Ht/pnacea; — is a difficult one to arrange satis- factorily, owing to the strong family likeness prevalent among its members ; and the generic systems adopted by authors have varied between the one extreme of condensation into a single genus to the other extreme of disruption into scores of genera often separated from one another on the flimsiest of pretexts. Dr. Braithwaite, it appears, will follow a middle course. The present part contains the subfamily LeskecB (Thuidium with six species, Leskea with three, Anomodon with three), and part of Awblystegitim — the beginning of subfamily Hypnea. Amblysteyium has been vastly augmented by the addition of five groups of Hypna (e. g. Harpidiiwi and Limnobium). In the present part, however, beyond the thirteen species of EiuDiiblystcf/ium, only one of the additional groups appears — CawpyUadeJphus, with five species. To return to Thuidium, Dr. Braithwaite is to be congratulated for repairing an omission of which other books and lists of British Mosses are guilty. He has not failed to include in the genus T. hystricosum Mitt., which was published in this Journal in 1863. Wilson separated the plant in his herbarium under the manuscript name Hypniim calcicola ; but Mitten's name seemed to have become forgotten. Husnot, however, just mentioned it in his Muscoloyia Gallica, and Limpricht acknowledged and redescribed it in Raben- horst's Kryptoijamen- Flora. As to another species of Tliuidiun), it will be fresh in the memory of readers that in the last number of this Journal T. Philiberti Limpr. was recognized by Mr. H. N. Dixon as a species which he has found in this country. This notice was, however, too late for Dr. Braithwaite to figure the plant in the newly published part of his Moss- Flora. — A. G. Another important contribution to the literature of Mosses is Part iii. of General Paris's Index Bryoloyicus (Paris : Klinksieck. Dec. 1896. pp. 645-964. Price fr. 12-50). 'Beginning with Hypnum 64 BOOK-NOTES, NEWS, ETC. giimsulanum, it makes such good progress that it reaches Plagio- thecinm nitidulnm. Tlie most valuable achievement in the present part is the completion of the index of the species of Hi/puum which have always been difficult to trace owing to the vast number of names in use, and the perplexing and ever-changing systems in which they have been classified. It is to be hoped that we have now a trustworthy clue to the synonymy and literature of tha genus. — A. G. Owing to an accident, as we learn from Prof. Britton, we have only just received our exchange copy of the Bulletins of the Torrey Club from May last, the absence of which has prevented their inclusion in our list of "Articles in Journals." We mention this because our erroneous but not unnatural conclusion, based upon a similar failure of exchange, that Erythea had ceased to appear, has occasioned some comment, not of the most courteous kind, in our transatlantic contemporaries. Dr. Britton says [Taney Bulletin, 1896, p. 283) that our statement was "about as accurate as [ourj recently printed tabulation of the dates of the publication of the Bulletin during 1895" — thereby implying that both statements were equally inaccurate. There can be no doubt as to which Bulletin he intends, for Dr. Britton prints the word in small capitals ; and he may perhaps be excused for recognizing no other Bulletin than his own. " Such pride," like that of Lieutenant Belaye in the Bab Ballads, "is hardly wrong"; yet if the accomplished editor had not been in such a hurry to criticize, or had taken the trouble to read the article which he censures, he would have seen that the "tabulation" refers, not to his journal, but to the Bulletin of Miscellaneous Information issued at irregular intervals in connection with Kew Gardens. This tabulation, as we then pointed out, is based on the Stationery Office date printed on each number, and cannot be otherwise than accurate. No doubt Dr. Britton will be as ready to withdraw his misstatement as we were to correct ours regarding Erythea. We note that Dr. Britton (Torrey Bulletin, 1896, 215) commends Mr. Druce's * Notes on the Ninth Edition of the London Catalogue ' as "critical and valuable," and quotes "a few sentences in order to show that Mr. Druce is sound on principles of nomenclature." We do not observe that Dr. Britton has subsequently modified this opinion ; probably he has not noticed the criticisms of Mr. Arthur Bennett and the Rev. E. S. Marshall (Ami. Scott. Xat. Hist. April, 1896, pp. 109-112) or our own examination of Mr. Druce's paper in this Journal (1896, pp. 271-3). Those who have read either of these notices will be able to form their own opinion as to the critical value and soundness of the procedure which is thus stamped with the approval of the great American reformer of nomenclature. The Proceedinys of the Somersetshire Archaeological and Natural History Society for 1896 (3rd series, vol. ii.) contains the completion of the Eev. R. P. Murray's Flora of Somerset. Our readers will be glad to know that the Rev. E. S. Marshall has begun to write out his Flora of Kent for press. 65 HIGHLAND PLANTS COLLECTED IN 1896. By Rev. E. S. Marshall, M. A., F.L.S., & W. A. Shoolbred.M.R.C.S. We stayed in the comfortable hotel at Roy Bridge, v.-c. 97, W. Inverness, from July 15th to August 6tli, chiefly in order to collect Hieracia, W. A. S. during a previous visit having found it to be a good centre for working ; several of the stations given below were then discovered by' him. Glen Spean has been botanized by members of the Scottish Alpine Club, Mr. G. C. Druce, and others, so that some of the plants noted have no doubt been previously found; therefore we have not attempted to discriminate "new county records." Part of a day was spent on Ben Dothaidh, v.-c. 98, Argyle. Former hunting-grounds (Corrie Ardran and Glen Falloch) were again visited from Crianlarich, v.-c. 88, Mid-Perth : and we gathered some brambles during an afternoon stroll near Ardlui, at the head of Loch Lomond, v.-c. 99, Dumbarton. With his never-failing kindness, Mr. Arthur Bennett has ex- amined various critical plants. Mr. Hanbury and Rev. E. F. Linton gave us much help with the hawkweeds, and Rev. W. Moyle Rogers with the brambles. We have also to thank Prof. Hackel, Mr. Townsend, and Dr. 0. Nordstedt, who was good enough to submit two or three difficult forms to Swedish specialists. Cochlearia alpina H. C. Wats. A form with the pouches globose or orbicular-ovate was met with on Aonach Beg, 97, a magnificent mountain, which is very remote, and would require fully two days for the proper examination of its corries. We are much indebted to the Earl of Abinger and Mr. R. Kynaston Cross for access to this and other hills sacred to the deer. — C. micucea E. S. Marshall. Micaceous ravine on Aonach Beg, at 3200 ft. The pods were not ripe, but its habit is exactly that of the Perthshire type. A scurvy- grass growing in some quantity on the shore near Fort William does not agree at all well with any one of our British species, though bearing considerable resemblance in particular points to anijlica, alpina, and ojflcinalis ; we hope to raise it from seed. Specimens were sent to Prof. Th. M. Fries through Dr. Nordstedt, but no opinion has yet been received from him. Viula triculur L. A peculiar hispid variation is frequent in Glen Spean, about Roy Bridge, making a considerable approach towards V. Idspida Lam. (!'. rutJiunuKjoisis Desf.) in this respect, and in the cutting of the stipules, but not having quite the corolla of that plant. — V. lulea Hudson, var. amcma (Symons). Glen Spean, between TuUoch and Inverlair. Polyrjala vultjuris L. Shingles of the Spean, below Tulloch. CerctHtium tiivitde Link. A striking variety, with bright green foliage, umbellate inflorescence, and long capsules, locally abundant in wet, stony ground on Aonach Beg, at about 2700 or 2800 ft., has been named by Dr. Svante Murbeck as follows : — " C. vuhjare Hartm. subspec. fontanum Baumg. (= C. triviale Link, subsp. alpestre .Journal of Botany. — Vol. 35. [March, 1897.] f 66 HIGHLAND PLANTS COLLECTED IN 1896. Liudblom = C. meter ophyllnm Sclaur)." Nyman places C. macro- carpum (an earlier synonym of C. lonf/irostre Wicliura) as a sub- species of C. tnviaJe. Our plant is certainly not the variety d. alpinnni Mert. & Koch of the present London Catalofjne, which used (rightly or wrongly) to be called var. alpestre Liudbl. — C. alpinum L., var. pubescens Syme. Fine and characteristic on Stob Coire-an-Easain, Glen Spean, above 3400 ft., associated with C. arcticiim Lange ; the latter also grows on the adjoining Ben Socaich range. C. triiji/nnm Vill. was seen on Aonach Mor, Aonach Beg and Stob Coire-an-Easain. Anthijllis Yulneraria L. Glen Koy. Lotns ulifiinosiia Schkuhr. Glen Spean, near Eoy Bridge. Vicia syh-atica L. At 1300 ft. on the rocky banks of the main stream in Coire Coille, Glen Spean ; flowers almost pure creamy- white. Mr. Bennett writes that it "seems to differ from the normal form by the ciliate calyx, more subulate sepals, and the great development of the tendrils." Primus Avium L. Eoy Bridge; probably bird-sown, rather than planted. — P. Padus L. Banks of the Spean, near Roy Bridge. Piuhus Jissus Lindl. and PI. suherectus Anders. Both remarkably abundant about Roy Bridge. Pi. pUcatus is much scarcer ; a plant growing close to the railway- station, of which we unfortunately omitted to take specimens, had stamens falling short of the styles, and may be var. hemistemon. — B. Lindleianus Lees. Ardlui, 99. — R. puh'herrimus Neum. Fort William ; Ardlui. — E. villicaulis Koehl. Eoy Bridge. Mr. Rogers named this as var. insidaris, but from a recent letter of his it seems that Dr. Focke considers Areschoug's variety to be the typical Silesian plant. What we have recently been regarding as typical villiraulis (from Ross and Suther- land) appears identical with the usual German form, the stems of which are more hairy than in Koehler's original specimens. — E. Selmeri Lindeberg. Abundant in Glean Spean ; also observed at Fort William and Ardlui. This, one of the most marked and widely distributed British brambles, surely deserves specific rank, apart from E. villicaulis. — E. gratus Focke. Near Ardlui. — E. macrophyllua Wh. & N. (sp. coll.). Roy Bridge. — E. mncronatus Blox. Plentiful in Glen Roy and Glen Spean ; also gathered near Ardlui. — E. infestus Whe. Fort William. — E. radula Whe. Both the type and a form of var. amjlicanus Rogers were collected at Ardlui. PotentiUa procumhens Sibtli. Near Tulloch, Glen Spean. Alchemilla arvensis Scop. Fields, Glen Roy. Eosa tomentosa Smith. A variety with leaves very glandular beneath is frequent in Glen Spean and Glen Roy ; in one case the glands extended on to the upper surface as well. About a mile below Roy Bridge we met with the smooth- leaved variety formerly named E. mollis var. (jhihratn Fr. by Scheutz, on which M. Crepiu remarks: " C'est certainement une des curiosites rhodologiques du nord de I'Ecosse." 7i'. f/lauca Vill. and E. roriifolia Fr. are both fairly common about Roy 13ridge. Pi/rvs Mai us L., a. acerha DC. Glen Roy; looking like a native. HIGHLAND PLANTS COLLECTED IN 1896. 67 Saxifrar/a nivalis L. Stob Coire-au-Easain, at 3400 ft., associ- ated with S. riviilaris L., which also grows on Aonach Beg. — S. ccEspitosa L. The true plant was obtained on one of the Glen Spean mountains, very scarce and small ; we believe that the locality is one in which it was met with by some Scottish botanists a few years ago. Epilohium angustifuUam L. At 2700 ft. on Garbh Bheinu, Fersit Forest, 97 ; not seen elsewhere. Circiea alpina L. Glen Eoy. Canim verticUlatum Koch. By Loch Lomond, at Ardlui. Senecio viscosus L. Corrour, 97 ; Bridge of Orchy, 98 ; Crian- larich (in great plenty), 88 ; and Ardlui, 99; growing in each case on cinders or other railway debris, and unquestionably introduced. Hieracium alpinum L. Aonach Mor and Ben Socaich, 97 ; locally abundant in the second station. — H. holosericeum Backh. Frequent on the hills about Roy Bridge. Ben Chlinaig ; Garbh Bheinn ; Stob Ban ; Stob Coire-an-Easain More ; Aonach Beg ; Ben Socaich, &c. — //. eximiwii Backh. Most rare ; a single speci- men only was gathered on Aonach Mor. Its place is taken by //. calendulifionim, which is far more general and abundant than in any district that we have ever visited. Fersit Forest (descending to 1700 ft.) : Coire-an-Easain More (very plentiful) ; Stob Ban ; Coire Coille ; Aonach Mor ; Aonach Beg, &c. — H. gracHentum Backh. Very sparingly on the top of Ben Chlinaig, 97. Ben Dothaidh, 98. — H. nigrescens Willd., var. (jmcilifoliiim F. J. Hanb. Aonach Beg; scarce. GlenFalloch; "Just like the original Ben Lawers specimens" (Hanbury in sched.). — //. atratiuii Fr. Ben Socaich. An Aonach Beg plant may also belong here, and we refer to this species a hawk weed found in some quantity, at 2800 ft., in Glen Falloch. — H. curcatum Elfstrand. Aonach Mor, locally abundant. Seen sparingly on Aonach Beg ; but time only allowed us to examine a small part of this mountain. — H. Backhousei F. J. Hanb. Ben Socaich, in considerable quantity. — H. liiundatnm Backh. Frequent. — H. senescens Backh. Frequent, and abundant in several of its stations. Aonach Beg ; Garbh Bheinn ; Stob Ban ; Coire Coille; Stob Coire-an-Easain More. — H. chri/santhion Backh. Almost as general and locally plentiful as H. calcndiili- florum, in the Glen Spean mountains. Garbh Bheinn ; Stob Coire- an-Easain More ; Stob Ban ; Ben Socaich ; Aonach Beg. A plant from Ben Socaich has been named var. viicrocephalum Backh. by Mr. Hanbury. — H. centripetale F. .J. Hanb. Coire-an-Easain More, at 2700 ft. ; Aonach Beg, at 3000 ft. Very scarce in both these stations. — hi . subinururiun Lindeberg. Aonach Beg, very rare ; more plentiful by streamlets descending from Stob Ban. — H. calliato- jihijlluin F. J. Hanb. Stream-sides, Coire Coille ; Stob Ban. Var. creninanthes F. J. Hanb. occurs with the type in Coire Coille, and is rather plentiful near the head of Glen Falloch, Perthshire. — //. (iiujiicum Fr. Var. luiKjibnicteatum F. J. Hanb. is the prevailing form about Glen Spean ; typical toit/licum was only noticed in two stations, and H. triciDii Fr. must be extremely rare ; indeed, we did not meet with a single specimen of it. — //. cerinthiforme Backh. F 2 68 HIGHLAND PLA.NTS COLLECTED IN 1896. Locally abundant ; Sgorr-na-Insse, Glen Spean ; Coire Coille ; Fersit Forest. — H. flocculosum Backb. Aouacb Beg, between 2500 and 3000 ft. ; Coire-an-Easain More. Very scarce. — H. Langwel- Icnse F. J. Hanb. (?) A plant whicb, wben dried, seems to us in- distingnisbable from type-specimens of tbe above, was gatbered in quantity by the stream descending into the Lairige-an-Leacan from IStob Ban, and more sparingly in Coire-an-Easain More and Coire Coille. — H. argentcum Fr. Glen Spean, near Inverlair ; scarce, — H. iiuitlnm Baclvh. Lairige-an-Leacan and Coire-an-Easain More (W. A. S., 1891). — H. Sommerfeltii Lindeberg. Coire-an-Easain More ; Stob Ban. A plant with unspotted leaves, from shingles by the Spean below TuUoch, is (we believe rightly) placed here by Mr. Hanbury. — Var. tadiim F. J. Hanb. Ascent of Aonach Mor; fairly plentiful, between 1800 and 2000 ft.— H. Pictorim F. J. Hanb. Aonach Beg ; ascending to 3000 ft. Mountain (not named in the ordnance-map, but probably Ben-na-Van) west of the Lairige-an- Leacan. Head of Glen Falloch (2700 ft.). — Var. chii^i/tlirLv Linton. Aonach Beg ; Coire Coille ; Stob Ban, 97. Ben Dothaidh, 98. Head of Glen Falloch. A good and well-marked variety, usually growing mixed with the type ; separable by its yellow styles, more dingy pappus, and more shaggy heads. — //. rivale F. J. Hanb. Apparently quite common on the Glen Spean mountains, the name being applied in a wider sense than usual; but we find it difficult to consider all the plants grouped under it by Mr. Hanbury as properly referable to one species. Stob Ban ; Coire Coille, very pleutiful ; Garbh Bheinn ; Coire-an-Easain More ; Glen Falloch (2700 ft.j. — Var. mikirtura F. J. Hanb. By streams descending from Stob Ban to the Lairige-an-Leacan, in good quantity. — H. muroriun L., var. sarcoiihi/llurn Stenstrup. By streams, rather uncommon and scarce, between 400 and 2500 ft. Beside the Roy, two or three miles up the glen ; Stob Ban ; Garbh Bheinn ; Coire Coille. The leaves were blotched with dark purple in all the specimens observed. — H, euprepcs F. J. Hanb. Scarce. Aonach Beg. A form with fairly typical heads, bat peculiarly toothed root- leaves, was found by the main stream descending from Aonach Mor into Glen Spean, at 1500 ft. — H. ciesinm Fr. A plant from Coire- an-Easain More (2700 ft.), having yellow styles, is placed here by Mr. Hanbury.— /J. insulare F. J. Hanb. Coire Coille, at 2500 ft. ; not quite typical. — H. stenoplujes W. R. Linton, " or very near it " (Hanbury in litt.). Plentiful in a porphyritic gully on the north side of Sgorr-na-Insse, Glen Spean. — H. suhanfractuin E. S. Mar- shall. Stream-side, Fersit Forest ; locally abundant. Streams descending to the Lairige-an-Leacan, on the west side. — H. spdisifoliitm Lindeberg. Glen Spean, near Inverlair ; both tbe unspotted and the more usual Scottish plant {'■'■iovixiQ, cruentata" Lindeb.) with purple-blotched or marbled leaves. — H. dovrense Fr. Busby places. Glen Roy ; in some plenty, but very local. — ■ H. Deivari Boswell. By the Spean at Roy Bridge, very scarce. Locally abundant by the burn in Coire Coille, from 1300 to 1500 ft. — H. strictiun Fr. (type). In the last-mentioned locality, above 1500 ft. — Var. subcrocatum Linton. Very abundant in Glen Roy, HIGHLAND PLANTS COLLECTED IN 1896. 69 and frequent by the Spean at (and below) Roy Bridge ; usually occurring as a sti/lose form. We incline to consider this rather a good "species," and cannot think it rightly placed under the same aggregate as var. amplidentatnm F. J. Hanb., which differs widely in habit, shape, colour and texture of leaves, styles (yellow, not sooty), and involucral clothing. The latter is abundant at intervals by the Spean from near Tulloch to within a mile of Spean Bridge, below which point we did not work. — H. anyustum Lindeberg. To this Mr. Hanbury refers a handsome and characteristic yellow- styled plant, abundant by the Spean at Roy Bridge and about a mile lower down. We place it with some confidence under H. salicifolitiiii Lindeberg; it does not at all closely resemble either Prof. Lindeberg's type-specimen of amiustum in Hiev. Exsiccata Scand. or a specimen gathered at Lawers, Perthshire, in 1887, which he named "H. (tii(/ustuin mihi, optimum!" The leaves are much broader, more coriaceous, less narrowed above the base, less hairy, and more shortly ciliate ; indeed, the whole facies of the Glen Spean plant, which (in hundreds of specimens seen) was remarkably uniform, appears to us decisive against the former identification. — H. auratum Fr. Plentiful in Glen Spean and - Glen Roy. Arctostaphi/los alpina Spreng. Fersit Forest. Abundant on the top of Ben Chlinaig, together with Loiseleuria procumhens Desv., and on the moorland between this hill and Sgorr-na-Insse. Tiientalis eitropaa L. Wood near Roy Bridge, Glen Spean (W. A.S., 1891). Samolus Valerandi L. Near Inverlair ; a good many miles from the sea. Hcrophularia nodosa L. Glen Roy. Not recorded for W. Inver- ness in Top. Bot. ed. 2, so we mention it in case it has escaped observation. Veronica alpina L. Glen Spean mountains, not very rare. Aonach Mor ; Aonach Beg ; Stob Coire-an-Easain More ; Ben Socaich ; Garbh Bheinn, &c. The var. hnmifusa of V. serpyllifolia was well marked in a cold, wet gully on Aonach Beg, at 3200 ft. Euphrasia PiostJcoviana Hayne, and FJ. gracilis Fr. are frequent about Glen Roy ; E. scottica Wettst. [E. paludosa Townsend, non R. Br.) is also plentiful, and ascends to fully 2000 ft., preferring wet grassy or sedgy spots. Illiinanthus ('rista-rjalli L., var. Dnnnmnnd-Hayi B. White. On several of the micaceous Glen Spean mountains ; unusually luxuriant on the cliffs of Aonach Beg. Melampijrum sylvaticum L. Thickets by the river. Glen Roy, and in a wood near Roy Bridge, Glen Spean. Utricidaria intermedia Hayne. Moorland between Roy Bridge and Aonach Mor. Mentha hirsuta Huds. Glen Spean; evidently native. M. rubra Sm. grows by a ditch in Strath Fillan, between Tyndrum and Crian- larich, 88 ; doubtless an escape from a neighbouring farmhouse. Littorella juncea Berg. In the stream called Amhainu Reidh, descending from the watershed of Glen Nevis to Lochtreighead. 70 HIGHLAND PLANTS COLLECTED IN 1896. AtiipJex palula L. aud A. hastata L. Shore of Locli Liuiibe, near Fort William ; Suada maritbna L. and Salicornia herbacea L. also occur here. Polygonum lapathifolium L. A weed in the gardens of Koy Bridge Hotel. liumcx. Acetosa L. ascends to 3400 ft. in Glen Spean. Salix Mijrsinitrs L. The form (S'. proctimbens Forbes was met with on Garbh Bheiim, Htob Coire-an-Easain More, and Aonach Beg, in small quantity. — *S'. purpurea L. By the Spean near Inverlair ; locally plentiful, and looking thoroughly wild. A single tsmall bush of S. aurita x purpurea was found here ; it is a very good leaf-intermediate. — .S'. eilha xfror/Uis. In Glen Spean, about a mile and a half below Roy Bridge ; a shrubby bush, apparently not an intentional introduction, but very unlikely to be a native here. — S. aurita x Caprea and 8. aurita x cinerea were gathered by the river between Tyndrum and Crianlarich, 88. Malaxis paludosa Swartz. Boggy ground. Glen Roy. In this glen we also noticed Habenaria conopsea Benth., H. albida R. Br., and H. chloroleuca Ridley. Sparijanium / ajjine Schnizl. Flowering, in a tarn about an acre in extent, on the divide between the Lairige-au-Leacan (Glen Spean) and the head of Glen Nevis, near the source of the Allt Coire-an-Radh, at fully 2800 ft. by aneroid. This is 600 ft. higher than any British record that we know of; but Rev. E. F. Linton informs us that he has gathered it at about the same level near the head of Canlochan Glen. The appearance of the plant was so peculiar that we thought it not unlikely to be one of the other Scandinavian species, but this may be due to the icy-cold water in which it grows. "Too young; either Sp. ^///fwe (sensu Neuman) or Sp. speirocephalum Neum. " (Pastor L. M. Neuman, ex 0. Nord- stedt in litt.). Scirpus setaceus L. Glen Roy ; uncommon in the Highlands, according to our experience. Eriophorum latifoliuin Hoppe. Moors on the south side of Glen Spean, not far from Lionachan. Carex paucijiora Lightf. Frequent in similar situations to that of Kriophorum. latifuUum. — C. curta Good., var. alpicola (Wahlenb.). At 2700 ft. in a swamp on the east side of Ben-na-Van ('? name) ; not seen elsewhere. — C. var/inata Tausch. Garbh Bheinu, at 2700 ft. C. pulla Good, is frequent in Glen Spean. A- ; lat. isthm. 8-y-9-5 /x ; crass. 15 //. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo; May 18G0. No. 15. Morro de Lopollo ; May 1860. No. 182. 6. E. HYPOCHONDRuir Nordst. in Acta Univers. Lund. xvi. no. iv. 8, t. 1. f. 11 (1880). A form with slightly different lateral lobes; this difference, however, may be owing to the specimens having been dried for a long period. Long. 46 /j. ; lat. 42 /v. ; lat. apic. 15 /x; lat. isthm. 11-5 /x ; crass. 20 /x. Libongo. Ad margiues flum. Lifune ; Sept. 1858. No. 204. 7. E. HYPocHONDRomEs Wcst & G. S. West in Tram. Linn. Soc. 2 Ser. V. 49, t. vi. f. 8 (1895). Long. 49 /x; lat. 38 /x; lab. apic. 13'5 /x; lat. isthm. 9 /x ; crass. 17 /x. Pungo Andongo. In stagnis prope Anbilla (Condo) ; March 1857. No. 177. 8. E. subpersonatum, sp. n. (tab. 366, fig. 19). E. sub- mediocre, H-plo longius quam latins, profande constrictum, sinu lineari extremo ampliato ; semicelluho subtrilobie, coustrictione levi ad basin lobi polaris ; lobis lateralibus subrectangularibus, angulis basalibns dente minuto instructis, lateribus snbretusis sub- divergentibusque, angulis superioribus truncatis ; lobo polari trans- verse rectaugulari cum lateribus convexis, spina parva divergenli ad angulum superiorem unumquemque, incisura mediana profunda aperta ad apicem convexum ; cum verruca magna rotundata in centro semicellularum : membrana delicate punctata. Long. 39 /x ; lat. 27 /x; lat. apic. 19-21 /x; lat. isthm. 7*5 /x. Pungo Andongo. In stagnis prope Anbilla (Condo) ; March 1857. No. 177. This differs from E. personatum West & G. S. West (I.e. 52-3, t. vi. f. 19) in having one median wart nearer the middle of the semicells and no accompanying scrobiculatious, in the lateral lobes being widest in their upper portion, and in the wide gaping apical notch. 9. E. ELEGANS (Breb.) Kiltz. Pliyc Germ. 135 (1845) ; Ralf^j, /. e. 89, t. xiv. f. 7. HeterocarpeUa eleqons Breb. (1839). Long. 26-29 /x; lat. 16-19 /x ; lat. isthm. 4-5-5 /^ ; crass. 11-5 /t. Iluilla. In uhginosis editioribus prope llumpata, Empalanca et Lopollo ; May 1H60. No. 15. Pungo Andongo. In stagnis prope Anbilla (Condo) ; March 1857. No. 177. K. liiritrriituiii W. B. Turn, (in A'. iS'c. IV/.- J/.w-/. Ilnuill. Bd. 25, No. 5, 83, t. xi. f. 1) and K. annuhaum W. 15. Turn. (/.<•. 80, t. x. f. 36, 52) seem to us to belong to E. eleyans. Turner's drawing of the "lateral view" of E. annulatiun (t. x. f. 52) shows that it is somewhat oblique, and not strictly a lateral view. The zygospore of E. incurviituni is also that of some forms of A', elfijans. G 2 84 WELWITSCH'S AFRICAN FRESHES ATER ALG.E. 10. E. subinerme, sp. u. (tab. 366, fig. 18). E. iDarvum, circiter l|-plo longius quam latins, profuude constrictum, sinu angusto-lmeari ; seraicellulii? truncato-pyramidat?e, angulis basali- bus rotuudatis, lateribus excavationibus duabus projectione mediana rotundata, angulis apicalibus rotuudatis, incisura mediana profunda liueavi ad apicem rectum, tumoribus tribus trans basin semicellulae uniuscujusque et tumoribus duobus alternantibus trans medium (ut in K. sinnoso) ; a vertice viste anguste oblongo-ellipticfe, j)olis obtuse conicis, projectionibus rotundatis tribus et projectionibus duabus alternantibus supra utrobique instructfe, lobo polari oblongo- elliptico; membraua minute et sparsissime scrobiculata. Long. 35 /x ; lat. 22 ji; lat. apic. 10-5 /x ; lat. isthm. 8 /x; crass. 12 ji. Pungo Andongo. In pascuis spongiosis breve graminosis juxta rupes gig. pr. Catete ; May 1857. No. 111. This species is in outline very similar to E. inerme (Ealfs) Lund. {Nom Acta B. Soc. Scient. Ups. ser. 3, viii. no. ii. (1871), 20, t. ii. f. 3), but it is much smaller and shorter, has different basal angles, and also a very different arrangement of surface tumors. From E. sinuosuni Lenorm. it differs in its much smaller size and its short rectangular polar lobe as seen in front view ; from the vertical view the polar lobe is oblong-elliptical, and not sinuate-quadrate. 11. E. ERosuM Lund. /. c 22, t. ii. f. 6 (1871). Forma minor. Long. 19-21 //. ; lat. 13-5-15-5 /x; lat. isthm. 3-5-4 /x; crass. 10 /x. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. 12. E. cosMAEioiDES West & G. S. West in Trans. Linn. Soc. 2 Ser. V. 54, t. vi. f. 23 (1895). Var. cuETUM, var. n. Var. cellulis brevioribus. Long. 23 /x ; lat. 18 /x; lat. isthm. 5*5 /x ; crass. 13-5 /x. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. 13. E. BiNALE (Turp.) Ehrenb. in Bericht. Veih. Preuss. Akad. Wissensch. Berlin, 208-9 (1840); Ralfs, Brit. Desm. 90, t. xiv. f. 8 (1848). Heterocarpella binalis Turp. (1820), Cosmariuin Aitcliisonii as figured by W. B. Turner in K. Sv. Vet. Akad. Handl. Bd. xxv. no. 5 (1893), t. viii; f. 54r<, i {a is obhque) ; non C. Aitcliisonii Schaarschm. (1884). Var. ANGOLENSE var. n. (tab. 366, fig. 8). Var. minor, angulis apicalibus productis et late rotuudatis, angulis basalibus rotundatis; cellulis a vertice visis subglobosis, polis productis ; a latere visis semiellipticis. Long. 19 /x; lat. 10 /x ; lat. isthm. 2-5 // ; crass. 8-5 /x. Huilla. lu uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. 14. E. DENTicuLATUM (Kirchn.j Gay in Bull. Soc. But. France, xxxi. 335 (1884). E. binale v. denliciilatiDii Kirchn. in Cohn, Kn/pto(i. Flora Schlesiai, 159 (1878). Long. 17-18//.; lat. 13-13-5 /x"; lat. isthm. 3-5-4 /x, Pungo Andongo. In staguis prope Anbilla iCoudo); March 1857. No. 177. WELWITSCH's AFRICAN FBESHWATER ALG/E. 85 Huilla. lu uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. Forma. A form with the lateral lobes partly subdivided. Long. 26 IX ; lat. 17 /x; lat. apic. 14-5 /jl; lat. isthm. 5-5 /x ; crass. 9*5 /x. (Cfr. W. & G. S. West in Trans. Linn. Soc. 2 8er. v. t. ix. f. 16.1 Huilla. Inter Gonatonema tropicum, Morro de Lopollo ; Febr. 1860. No. 186. 15. E. tetragonum, sp. n. (tab. 366, fig. 10). E. minutum, circiter l^^-plo longius quam latius, profnnde constrictum, sinu linear! ; semicellulffi subrectangulares, apicem versus latiores, angulis basalibus leviter rotundatis, lateribus subretusis in medio, dente minuto ad angulum superiorem unumquemque, apice leviter con- vexo et retuso in medio, seriebus duabus granulorum parvorum trans angulum superiorem unumquemque, granulis 4 intra angulum basalem unumquemque, et papilla in centro; a vertice visa ellipticte, polls acutis dente parvo instructis, seriebus duabus transversis granulorum ad polum unumquemque, papilla mediana utrobique instructiB. Long. 18-19 /x; lat. has. semicell. 13-13'5 /x; lat. apic. 14-15 /x ; lat. isthm. 3'8-4-8 /;- ; crass. 9-5 /x. Libongo. Ad margines flum. Lifune ; Sept. 1858. No. 204. Compare with E. denticidatuvi v. rectangulare West & G. S. West in Tracts. Linn. Soc. 2nd ser. v. 53, t. vi. f. 21. 16. E. bimorsum, sp.n. (tab. 366, fig. 17). E. subparvum, If-plo longius quam latius, profunde constrictum, sinu angusto extremo ampliato ; semicellulfe pyramidato-trapeziformes, angulis basalibus rotundatis, lateribus rectis, incisuris parvis duabus et promontoriis ^qualibus denticulatis tribus ad laterem unumquem- que, dente parvo ad angulum superiorem unumquemque, incisura profunda lineari ad medium apicis recti undulato-denticulati, intra promontoria denticulis paucis, lis intra promontorium basalem insignibus, verruca magna in centro infra incisuram apicalem ; a vertice visje elliptico-oblongas excavationibus latis duabus utro- bique, projectione centrali truncato-emarginata, polls late rotundatis et undulato-denticulatis ; a latere visfe pyramidato-oblongffi apice truncato denticulatoque, angulis basalibus denticulatis, projectione truncato-emarginata in medio lateris glabri uniuscuj usque ; mem- brana minute punctata. Long. 38 /x; lat. 23 /x ; lat. apic. 18 /x ; lat. isthm. 6 /x ; crass. 17 /x. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo, plagas spongiosas unacum Eriocauloneis, Xyridibus et Utriculariis constitueus ; May 1860. No. 15. This is very similar in outline to E. Turnerii West (in Jou);n. Linn. Soc. xxix. 141, t. xx. f. 18), but differs totally in both vertical and lateral views. 17. E. subdivaricatum, sp.n. (tab. 366, fig. 9). E. parvum, circiter 1^-plo longius quam latius, profunde constrictum, sinu lineari et extrorsum leviter aperto ; semicellulre pyramidato-trapezi- formes, sinibus duobus utrobique (eo infra apicem insigui), pro- jectione mediana emarginata, angulis inferioribus superioribusque mucronatis, granulis parvis 4 in margine apicis subconvexi, de- 86 welwitsch's African freshwater alg.e. presslone mediana ad apicem et intra marginem verruca qiiadii- granulata utrobique, verruca trigranulata intra angulum basalem unumquemque, verruca majori triloba in centro ; a vertice visae rectangulari-oblongae verruca lata emarginata in medio utrobique, aagulis emarginatis, polis unidentatis. Long. 34-5 /x; lat. 27 /a ; lat. apic. 18 /x; lat. isthm. 8 // ; crass. 15 /a. Huilla. In paludibus exsiccandis; April 1860. No. 17G. This approaches F. divarkatum Lund, (in ]5! CO |i <-l 81 b rj i [Apis 3 8 1^ 10 :{ 94 w Bombus .... — . 5 5\ 5 — 14 54 73 ph J Andrena, &c. 35 12 20 27 94 2 1 :} 9 15 2 1 Vespa — 0 — 1 1 S Ants — 2 2 3 7 — — — — 0 M I Ichneumons . Lepidoptera . 8 — 30 13 51 1 5 2 1 9 — — 7 — 7 1 .— — 12 13 { Syrpliida3 . . ■< EmpidiB .... 27 26 15 80 98 39 4 7 23 73 — — — — 0 — — — 2 2 g - Muscida; .... 2t;2 21 38 110 431 21 1] 6 53 91 li Scatophagidse 27 14 15 319 375 147 101 83 260 591 « [ Other Flies . . 83 54 201 194 532 55 37 14 46 152 Coleoptera . . 3 2 3 18 26 2 3 15 23 43 Hemiptera . . — — 2 2 4 — — ■ — 1 1 Thysanoptera 32 41 74 51 198 — — 252 81 333 Etc 26 2 3 7 38 — — — — 0 506 174 410 787 1877 28:1 162 399 647 1491 A short review of the efficiency of these insects in flower- fertilization may not be out of place. FERTILIZATION OF SPRING FLOWERS ON THE YORKSHIRE COAST. 95 Throughout this paper I shall arrange the groups and the species wilhiu the groups in a sequence which is more or less in accordance with their efficiency. Firstly, in the Hymenoptera : — the humhle-hees, with their regular liabits and long tongues (Bombus hortorum, ^ 14-lG, ? 19-21 mm. ; B. agrorum, ^ 12-13, ? 13-15 ; B. lapidarius, ^ 10-12, 2 12-14 ; and B. terrestris, ^ 8-9, 2 9-11), and also the hive-bee (Apis melHfica, ^ 6 mm.), are the best of Hower-fertilizers; next come tlie diligent Andrenidae with tongues of mid-length, and less efficient, because they visit only to feed themselves, and not to feed their young, the cuckoo- bees, c.(j. Nomada; the short-tongued wasp, in spite of its diHgence, is of considerably less use to plants ; and the lounging Ichneumons* and creeping ants of scarcely any use. The second group of insects, the Lepidoptera — often extremely long-tongued, but inconstant in their attentions — are of considerable service to plants, though scarcely to the spring flora. Proceeding to the flies, we have among them the hover-tiies or Syrphidae, which in length of tongue and suitability for flower-fertiUzation rank next to the Andrenidte ; the Empida?, which follow them, scarcely aflect the early spring flora ; not far behind come the busy gadding Muscid^e, among which the blue- bottles (Calliphora) and little green Lucilia are particularly noticeable. The remainder of the spring flies are of lower specialization as far as a floral diet is concerned. Of other insects, Hemiptera live on the juices of plants which they probe, and at times probe the nectaries in the flowers ; some Coleoptera are regular flower-visitors, but all are very simply organized in their mouth parts. Thysanoptera are flower-loungers, just like the Ichneumons mentioned above, and are more likely to eft'ect self- than cross-fertilization. Lastly, a few Collembola visit flowers, apparently for the sake of the honey, and certain crab-spiders, not for any part of the flower, but because of the flies which they are able to catch. I liave several times witnessed a struggle take place on the capitulum of a coltsfoot between Xysticus and a Lucilia wliich had fallen into the open claws of the spider. Krytluina is fertilized not by the flies which visit it, but by the sun-birds which come to feed on the flies ; so, too, ThssHcujo may now and then be fertilized through the agency of this spider. For this reason — they are more efficient than Thrips — I prefei- to include them as flower-visitors. Two things are necessary to the flower : firstly, efficiency in the habits of the visitors, and, secondly, efficiency in their numbers. The most desirable species of visitors are those which beyt combine these two desiderata. In point of habit, Apis, Bombus, Andreija, Lepidoptera, Syrphidic, Lmpida?, and perhaps Muscid;e are de- sirable ; in point of numbers. Table I. shows that the Empidfe and Lepidoptera must be excluded, and to some extent also Apis and Bombus. Ahhreviations. — Hi., Hm., Hs. =-- long-, mid-, and short- tongued Hymenoptera ; L. = Lepidoptera ; Dm. and Ds. = mid- * Throughout this paper I shall use the word Ichneumon to denote any of the Terebrantia, and not the one genus of that name. 96 FERTILIZATION OF SPRING FLOWERS ON THE YORKSHIRE COAST. and short-tongned Diptera ; C. = Coleoptera ; Hem. = Hemiptera; T. = Thysanoptera. sh. = sucking honey; fp. = feeding on pollen; cp. = collecting pollen as bees do for their young ; seeking h. = seeking honey, but not obtaining it. '94, '95, '96 give the years in which the observations were made. Square brackets [ ] are used to enclose the names of species which came under observation, but do not truly belong to the early spring flora. Distribution of Insect-visitors. All the plants observed in bloom during the periods of observation will be mentioned here under their biological classes ; those whose names are printed in small capitals (without an asterisk) are flowers which — using a term foresters employ in the same sense — — may be called "dominant" or "ruling" species; those in small capitals preceded by an asterisk may be considered as "subdominant" or "conditionally ruling"; while species whose names are printed in italics are "dependent." The keenest com- petition is between species of the same class, and the dependent Draha verna competes with the subdominant Cochlearia ojpcinalis and the dominant Itananeulits Ficaria. In a case like this, supposing other things {e. (j. amount and accessibility of honey, attractiveness in scent and colour, &c.) equal, the common species is a large host scarcely harassed by the single regiment on its flank ; while the scarce species is this single regiment, in constant danger of total annihilation should the struggle become acute. ■ot>^ Class I. ( W.) Wind-fertilized flowers. *Mercurialis perennis L. — No visitors. *Ulmus cabipestris Sm. — No visitors. CoRYLUs avellana L. — Dm. : Melanostoma quadrimaculatum Verrall, «? and J , fp., '95. Alnus glutinosa L.— No visitors. Popuim nigra L. — Ds. : Calliphora cognata Mg., seeking h. on S flowers, once, '96. Empetnoii nigrum L. — No visitors. Poa annua L. — No visitors. [Plantago lanceolata L. Luznla campestris DC. — No visitors.] Class II. (Po.) Flowers offering pollen only to their guests. *Anemone nemorosa L. — HI.: Bombus terrestris L., '94, '96. Dm. : Melanostoma quadrimaculatum Verrall, fp., '95. Ds. : Scatophaga stercoraria L., fp. and seeking h., '95, '96 ; Antho- myia sp., fp., '95, '96. Hem. : Anthocoris sp., seeking h., '96. T. : Thrips sp., ? seeking h., '96. Alcheiiulla (trvensis Lam. — No visitors. Class III. (A.) Flowers with freely-exposed honey. '■■Chrysosplenium oi'PosiTii'OLiuM L. — Hs. : a small ichneumon, '95. Dm. : Melanostoma quadrimaculatum Verrall, '95. Ds. : Sepsis nigripes Mg., '95 ; Chironoraus ? 2 sp., 95 ; Sciara sp., 95 ; FERTILIZATION OF SPRING FLOWERS ON THE YORKSHIRE COAST. 97 Lonclioptera sp., '95 ; Exechia sp., '95. T. : Thrips sp., '95. CoUembola : Lepidocyrtus sp., '95, '96. All the above at honey. Araneida : 1 sp., lying in wait. Chnjsosplenium alternifolium L. — Ds. : Cecidomyia sp. ? and 3 other small flies, '95. C. : Tachyporus chrysomeliuus L., '95 ; Lathrimaeum atrocephalum GylL, '95. Hem. : 1 sp., '95. All sh. '■'Adoxa Moschatellina L. — Hs. : Pezomachus sp., '95 ; another small ichneumon, '95. Dm. : Melanostoma quadrimaculatum Ver- rall, '95. Ds. : Scatophaga stercoraria L., '95 ; Sepsis nigripes Mg., '95 ; Sciarasp., '95, '96 ; Exechia sp., '95 ; Rhyphus sp., '95; and 3 other species, '95, '96. C. : Apion fagi K., '95. T. : Thrips sp., '95. All at honey. *Salix Caprea L. (including S. cinerea L.) — To Your letter of Saturday remiuds me that I have too long delaj-ed writing to you, through pressure of various business. Since my visit to Kew I have again had to be in London as well as in Heading, &c. I and my friend Miss Mihie (who had a letter of introduction from Mr. Croall) spent two days at Kew, which we much enjoyed. We did not see Sir William, but Dr. Hooker was very civil and kind. He moreover gave me a number of New Zealand and Indian mosses, which have occupied all my leisure time since then, but the Indian ones are not named, only numbered ; and, to a letter I wrote him, asking if there were any published names or catalogue to correspond, I have received no reply. In a former letter of yours, referring to some other New Zealand Mosses and Hepatieoe, you spoke of having found a scrap of Polyotus ■•' among them " which might possibly be new." Is the enclosed the species referred to ? I meant to have sent it to yoix before, but I forgot it when writing. I send with it another — a Hypnum,\ apparently of the hiaiis group, but which I have not yet had under the microscope. Do you know it ? These Indian and other mosses have cpiite prevented me from studying the new Fissidens riq^estris. This morning I have spent half an hour comparing the leaves, and I confess I do not see much difference between them, but this perhaps is my own fault. However, I at present find nothing in the way of clear characters — no other difference than * [This was, according to Wilson's note, P. claviyerus Gottsche, var. a. — Ed. Joukn. Bot.] t [Wilson notes that this was a Eacomitrhnn. — Ed. Jourx. Box.] HENKY BOSWELL. 135 would be caused by the difference of situation and liabitat, save only in the bordering of the leaf, which seems really tangibly different. Is there any other difference? This alone seems little to found a specific distinction upon. Of course I do not profess, on so slight ex- amination and so poor specimens, to question your decision ; only I do not see the proofs of it myself my with own eyes. It is now some five j^ears since I was at Stokenchurch, and I am not familiar with the details of the locality; but there is a line of chalk hills running round the borders of Oxfordshire and Bucks upon which Stoken- cluu-ch is placed. The slopes of these hills are here and there covered with wood, chiefly of beech, in which I have found Neottia Nidus-avis, Monotropa Hypopitys, Hordeum sylvaiicam, Epipactis latifolia and yrandiflora, Polytrichum formosum, and barren Neckcra crispa. This Fissidens probably grew in some shaded spot where the earth was bare, as the side of a pit or some such place. I do not think there is anything in the way of rocks anywhere there, save I'ocks of chalk ; and the only stones are tlints. But perhaps a short distance from the line I traversed would bring one upon gravel, or even upon the oolitic limestone. I will try to get more exact information by- and-by, and perhaps when the new railway opens to Thame I may go there for a day. Is it possible to get more exact information on the spot ? I have this summer found that my fertile plants of "i?. 2}seiulo- triqiictriim''' from Bullingdon have all synoicous flowers! and it seems that B. hlmimi (fruiting) and B. p seitdo-triquetrum (with female flowers and also I believe with male) grow there, and having found non-fruiting plants dioicous I had confounded them all together. I have been trying to find some other tangible difference besides the inflorescence, but fail to do so. They seem to me undistinguishable without dissection, more so than B. torquescens and capillare. I am very sorry to hear that Wybunbury too is going to be cultivated. What will the next generation of botanists do ? There will be nothing but cornfield weeds for them to study. Every summer makes a dilference hereabouts, and many spots where I gathered flowers and mosses within these four or five years are now destroyed. Yours very truly, H. BoSWELL. One of the reasons which led him to give up field-work was the encroachment which drainage, cultivation, and building operations made upon his favourite localities, to which he alludes in this letter. I scarcely ever talked with him without his referring to the former glories of Shotover or Bullingdon. This regret he thus expresses in the Flora of O.rJ'ordsliire: — "During the last thirty or forty years the increase of drainage and cultivation has continued at an accelerated pace, and many places once yielding good botanical prospects have been destroyed. Shotover, the famous haunt of Oxford naturalists, has sufl'ered great deterioraticto, though a little yet remains ; Bullingdon Green, once free and open, has been ploughed and enclosed ; the adjacent bog, so rich in Howers and mosses a quarter of a century ago, is drained, ami yields not much now but a wretched crop of bad corn and worse potatoes. Of Wychwood Forest little is left, and that little con- stantly diminishing, many acres of pleasant woodland having been turned into a desert of naked fields intersected by equally naked and very ugly stone walls, and everywhere similar processes have 136 HENRY BOSWELL. been more or less actively going on ; nor has the builder's assist- ance been wanting, many old botanizing grounds being now covered with houses." Boswell had no sympathy with the maker of micro-species, and the unconditional surrender of Braithwaite to Lindberg's nomen- clature rather prejudiced him against the law of priority. He had very decided opinions, not only on botanical matters, but also on political and social matters ; but he took no active part either in municipal work or in political contests. He behaved with great generosity to me when I was compiling my O.vfurdshire Flora, and gave me a large number of localities. In 1894 he allowed me the use of his note-book, that I might transcribe his records for my Berkshire Flora, a privilege which I valued very greatly. He was a member of our local Natural History Society, and read an important paper on Sphagnums at one of its meetings. I have asked Mr. H. E. Garnsey, whose friendship with Mr. Boswell was of older date and closer nature than my own, to express his estimate of Boswell as a bryologist, and he writes as follows : — " I can say but little about Mr. Boswell's earlier years, for our friendship did not ripen into intimacy till within the last twenty years of his life. He has told me that as a boy he took a pleasure in the sights and sounds of nature ; and though a botanist chiefly from the first, he did not confiue his attention to the vegetable kingdom, but acquired no slight knowledge of other branches of natural history, the notes of birds being a favourite study with him among other things. But it was to botany that he especially devoted his time and labour ; and while still a young man he had made himself a competent authority on British flowering plants generally and on those of his own district of England in particular. His work with the Phanerogams, and his views in dealing with them, always seemed to me to be conceived more in the modern spirit than were the labours of most of the English botanists of that time. "It was after this period of his life — the exact time I cannot fix— that he began to give special attention to the Muscinete, and it was thus that he became associated with the band of Lancashire botanists, who did so much in the early part of the century to enlarge our acquaintance with this branch of the vegetable king- dom. He became the companion and friend of Wilson, of Dr. Wood of Manchester, and others, and from his written correspon- dence with them I learnt the opinion which they entertained of his knowledge and powers, and the value which they set on his judg- ment in critical questions. It was by the gradual extension of this opinion among a large number of British bryologists that he came to occupy for so many years an almost unique position as a general referee and arbiter in cases of difficulty and division of opinion, a position which he continued to hold as long as he retained his powers of mind and body. He was the frequent companion in what may be called the middle portion of his life of his north country friends in their botanical rambles, and was in frequent communication with them on botanical subjects during the time HENRY BOSWELL, 137 that the Bryologia Britannica was in making ; and I have long been under the impression that his collection of British Mosses must contain a large number of Wilson's type-specimens. "When time had removed or lessened the activity of many of these earlier friends, he found constant occupation in meeting the demands made upon him by collectors who sent him mosses from all quarters of the globe, near and far. To the examining and naming these specimens he gave his time and labour freely and un- grudgingly, and he was thus for some years engaged in a botanical correspondence which few would have been prepared to undertake ; but neither time, labour, nor cost interfered in his case with the impulse of natural kindness and profound love of his subject to assist all who, whether strangers or friends, applied to him for help. He would say sometimes, in reply to some remark upon the extent of his labours in this way, that he had his gain from it in increase or confirmation of knowledge, and in the additions to his herbarium ; and that if he possessed any special power of discrimi- nating forms, or any certainty of judgment in these matters, he owed it in great measure to the large amount of experience which he had gained in working for others. During these years he was in the habit of making short botanical excursions to various parts of the United Kingdom, either alone or with a friend, often with important results. " Keceutly, and since the retirement of Mr. Mitten, Mr. Boswell did some work for the authorities at Kew. In connection with the services which he rendered to the Herbarium of the Botanic Garden at Oxford, it should not be forgotten ^hat he not only arranged and named or verified the collection of the Muscineae there, but enriched it with many additions from his own stores. " Mr. Boswell by no means confined his studies to his favourite subject. He was well-read in general literature ; he had formed reasoned views on most important topics, and could give interest to their discussion. It was natural, therefore, that those whom he admitted to his intimacy enjoyed his society, while his amiable and generous disposition, his uprightness of character, and his gentle unassuming way, secured their warm respect and regard." After the death of his wife, in 1888, Boswell became of more sedentary habits, and in 1894 it became evident that general paralysis had asserted itself. From this time his faculties gradually failed, and he passed away on Thursday, February 4th. He was buried at the Cemetery of St. Sepulchre on the following Tuesday. His herbarium has become the property of the Oxford Bot9,nic Garden. G. Claridge Druce. 138 FERTILIZATION OF SPEING FLOWEES ON THE YOEKSHIEE COAST. By I. H. BuRKiLL, M.A., F.L.S. (Continued from p. 99.) Class V. (B.) Flowers with honey completely concealed. Prunus communis Huds. — ^Hl. : Apis mellifica L., sh. and cp. ; Bombus terrestris L., sh. Dm.: Volucella bombylans L., sh. ; Eristalis pertinax Scop., sh. ; E. arbustorum L., sh. Ds. : Calli- phora erythrocephala Mg., sh. ; Pollenia rudis F., sh., abundant; Lacilia coruiciua F. ; Stomoxys sp. ?, sh. ; Scatophaga stercoraria L., sh., abundant; Phora sp. ?; Sepsis nigripes Mg., fp. All ob- served in '96. Veiunica ar/restis L. — No visitors. Veronica peisica Poir. — Hm. : Andrena gwynana K., $ , '95 ; A. clarkella K., i; \&i 51 /x; lat. isthm. 17/^; a form which is most probably var. validius Nordst., but specimens not in a condition for the satisfactory determination of this point. Puugo Andongo. In rivulis ; March 1857. No. 105, 59. C. Welwitschii, sp. n. (tab. 367, fig. 2). C. magnum, circiter 1^-plo longius quam latius, profunda constrictum, sinu aperto extreme obtuso ; semicelhilfe subglobosas latiores basin versus, apicibus leviter depressis, serie verrucarum emarginatarum circiter 19 in ambitu, etiam verrucis magnis conicis supra super- ficiem sparsis (interdum geminatis) ; a vertice visfe subgloboste, seriebus approximatis duabus verrucarum emarginatarum de polo ad polum, verrucis conicis sparsis inter seriem unumquemque et marginem ; membrana inter verrucas dense scrobiculata, Long. 98-100 ix; lat. 63-66 fi; lat. isthm. 22-24 fx. Huilla. In paludibus exsiccandis; April 1860. No. 176. Etiam inter Utriculariam, Morro de Lopollo ; April 1860. No. 179. This handsome species approaches C. Lagerhemianum [Dy- Hphinctium Laqerheimianum W. B. Turn, in K. Sv. Vet.-Akad. Handl. Bd. 25, no. 5 (1893), 43, t. xxii. f. 6] , but differs greatly in its much deeper constriction, in its flattened apices, in the double series of emarginate warts, in the shorter conical warts (not elongated papillae), and in the very densely scrobiculate membrane. In the vertical view the double series of emarginate warts are concave towards each other in the centre, and subparallel towards the poles. 60. C. sequinoctiale, sp. n. (tab. 365, fig. 11). C. parvum, circiter Ij-plo longius quam latius, leviter constrictum, sinu late aperto et rotundato ; semicelluliB suborbiculares base complanata, membrana granulata, granulis parvis seriebus verticalibus circiter 8 (ut visis) ordinatis (in serie unaquaque circiter 7) ; a vertice visse subgloboste granulis subradiatim ordinatis, in ambitu circiter 19. Long. 26 /J.; lat. 15*5 /x; lat. isthm. 10 // ; crass. 14 /x. Libongo. Ad margines flum. Lifune ; Sept. 1858. No. 204. This is distinguished from C. orbiculatum Ralfs in its less orbicular semicells, its much broader isthmus, and in its smaller granules with definite arrangement. Compare also with C. qualum [Dijsphincthim qualum W. B. Turn.] . 61. C. coNTRACTUM Kirchu. in Cohn, Kniptog amen -flora von Schles. Zweit. Bd. 147 (1878) ; Wolle, Desm. U. S. 63, t. 16, f. 1 ; t. 50, f. 24 (1884). Long. 35 /i; lat. 22 /i ; lat. isthm. 105 /x ; crass. 18 /x. • Pungo Andongo. In stagnis prope Anbilla (Coudo) ; March 1857. No. 177. 62. C. Oocystidum, sp. n. (tab. 366, fig. 21). C. subparvum, circiter l^-plo longius quam latius, levissime constrictum, sinu minute cxcavato ; somicelluUe late pyramidato-trapeziformes, an- gulis superioribus leviter rotundatis, apicibus latis et rectis, lateribus subrectis (leviter convexis) ; a vertice visa) elliptica?, polls acutis et submamillatis ; a latere visaB quadrato-ovatfe, apicibus trancatis ; 176 welwxtsch's afeican feeshwater alg.e. membrana dense punctata. Long. 32-5-35 /x ; lat. 26-27 /^ ; lat. apic. 12-5-13-5 // ; lat. isthm. 25 [x; crass. 17-18 /x. Huilla. Inter Utriculariam, Morro de Lopollo ; April 1860. No. 179. 63, C. CucuRBiTA Breb. in Desmaz. PI. Cn/ptog. Fr. fasc. xxiii. 1103 (1841), in ed. i. ser. i. (1825-51) ; Ealfs, Brit. Besm. 108-9, t, xvii. f. 7 (1848). Long. 29-31 /x ; lat. 15-19 /x; lat. istbm. 14-18 IX. Huilla. In paludibus exsiccandis ; April 1860. No. 176. Inter Utriculariam, Morro de Lopollo ; April 1860. No. 179. Morro de Lopollo ; Febr. 1860. No. 192. All the African examples are more densely and minutely punc- tate than the typical plant. Forma minor. Long. 21-24 /x; lat. 12-5 [x; lat. isthm. 11 //. Huilla. Cum forma typ. Nos. 176 and 179. Var. MINIMUM, var. n. Long. 12-5 jx ; lat. 7*5 /x ; lat. isthm. 7 /x. Huilla. Cum forma typ. No. 179. 64. C. palangula Breb. iu Ealfs, Brit. Desm. 212 (1848). Forma semicellulis punctis insignis et densis, subirregulariter dispositis. Long. 36 jx; lat. 15 /x; lat. isthm. 13*5 /x. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo; May 1860. No. 15. 13. Staurastrum Meyen (1829). 1. S. LEPTODERMUM Luud. in Nova Acta R. Soc. Scient. Ups. ser. 3, viii. no. ii. 58, t. iii. f. 26 (1871). Forma minor. Forma subminor, angulis minus productis. Long. 46 fx ; lat. cum spin. 42 /x ; lat. isthm. 18 /x. Libougo. Ad margines flum. Lifune ; Sept. 1858. No. 204. 2. S. tripodum, sp. n. (tab. 369, fig. 11). S. parvum, IJ-plo latius quam longius (sine spinis), profunde constrictum, sinu aperto; semicellulne transverse subrectangulares, latere ventrali inflato, angulis basalibus dentato-mamillatis, marginibus lateralibus leviter convergentibus apices versus, apicibus pnene rectis (leviter convexis), spina longa valida suberecta (long. 13 /x) ad angulum superiorem unumquemque ; a vertice visse triangulares, lateribus leviter cou- cavis, angulis acutis (submucronatis), prope et intra apicem anguste uniuscujusque spina valida multe abbreviata ut visa ; membrana glabra. Long, sine spin. 21 /x, cum spin. 46 /x ; lat. 26 /x ; lat. isthm. 9 /x. Huilla. In paludibus exsiccandis ; April 1860. No. 176. This species and S. xiphidiophorum Wolle are respectively simple and complex species of a distinct section of this genus. 3. S. crux-alternans, sp. n. (tab. 369, fig. 14). S. miuutum, tarn longum quam latum (cum processibus), sinu semicirculari (cum latere inferiori processuum), parte mediana cellularum subcylindrica, partibus apicalibus cellularum transverse subelliptic^e, polis iu pro- cessus breves latos glabros truncato-emarginatos productis, apicibus leviter convexis granulo singulo utrobique prope sed supra basin processus uniuscujusque ; a vertice visfB quadrangulares lateribus WELWITSCH's AFRICAN FRESHWATER ALG.E, 177 coacavis, augulis in processus breves (paullo longiores quam latiores) latos truncato-emargiuatos producfcis, granulo iutra basin processus uniusciij usque, processibus unius semicellubi^ cum iis alterius al- ternantibus ; membraua glabra. Long. 15 /x ; lat. 15 /x ; lat. isthm, 0 ji. Huilla. Inter Utriculariam, Morro de Lopollo ; April 1860. No. 179. Tliis at first sight reminds one of iS'. inconspicuum Nordst. ; but it differs in its much more robust processes, which are directed horizontally, and have not the nodulose swelling on the under side. 4. S. huillense, sp. n. (tab. 3G8, fig. 17). S. minutum, 1 j-plo latius quam longius, profundissime constrictum, sinu lineari ; seraicelluhe late oblongo-rectangulares, angulo inferiori uuoquoque cum spina brevi convergenti, verruca emargiuata lateri uniquique, angulo superiori emarginato (subfurcato, — dente superiori lougiori) ; a vertice visa? triangulares, lateribus leviter concavis, angulis sub- truncatis, angulus unusquisque verrucam tridentam gerens. Long, sine spin. 15 /x; lat. 20 /x; lat. isthm. 0 /x. Huilla. In paludibus exsiccandis ; April 1860. No. 170. 5. S. egregium, sp. n. (tab. 369, fig. 12). S. parvum, circiter 1^-plo longius quam latius, profunde constrictum, sinu aperto acutangulo; semicellulte subrectangulares, marginibus lateralibus et apicibus rectis, angulis leviter rotundatis, angulis superioribus cum procossu brevi lato bifurcato, angulis inferioribus verruca lata emarginata instructis; a vertice viste triangulares, lateribus leviter concavis, spiuis tribus ad angulos late truncatos (spina singula ad angulum unumquemque et spina mediana validiori) ; membrana glabra. Long, sine spiu. 21-23 /x, cum spin. 20-27 /x ; lat. sine spin. 15-17 jt., cum spin. 21-22 /x ; lat. isthm. 7*5-9'5 /x. Huilla. In uligiuosis editioribus prope Humpata, Empalanca ct Lopollo ; May 1800. No. 15. Etiam Morro de Lopollo; May 1860. No. 182. This Staumstrum belongs to the same section as S. qundri- cnrnutum Roy & Biss. and S. (jemelUparHm Nordst., but is very distinct from either. Each of the three angles of the semicells is more or less quadrate with a short bifurcate process at the two upper corners, with an emarginate wart at each of the lower corners, and a short stout spine between the two emarginate warts. 0. S. tridens-Neptuni, sp. n. (tab. 369, fig. 7). S. mediocre, tam longum quam latum (sine spinis), profunde constrictum, sinu aperto acutangulo ; semicellubD late oblonga), apicibus rectis, mai>- ginibus lateralibus leviter convexis, latere ventrali inflato (marginibus sinus rectis), spinis validis longis acutis tribus ad marginem lateralem unumquemque, spina centrali horizontali, spinis lateralibus diver- gentibus ; a vertice viste semper pentagona3, lateribus levissime concavis, spinis validis tribus ad angulos acutos verticaliter dis- positis. Long, sine spiu. 31-5 //. ; lat. sine spin. 31 //-, cum spin. 58 /x ; lat. isthm. 15'5 /x. Huilla. Freq. in paludibus exsiccandis ; April 1860. No. 170. Etiam inter Utriculariam, Morro de Lopollo ; April 1860. No. 179. Journal of Botany. — Vol. 35. [May, 1897-] n 178 welwitsch's African freshwater alg.e. The nearest species to this is S. subtrifurcatiim West & G. S. West (in Trans. Linn. Soc. 2ud ser. v. 258-9, t. xvi. f. 24 (1896) ), from which it is distinguished by the three diverging and somewhat shorter spines at each angle being situated in a vertical plane, and in the pentagonal vertical view with acute angles. 7. S. pentateuchophorum, sp. n. (tab. 369, fig. 6). S. medi- ocre, circiter l|-plo longius quam latins (sine spinis), profunde constrictnm, sinu aperto et subrectangulari ; semicellulje elliptico- oblongte, apicibus leviter convexis, lateribus sursum convergentibus, spina valida convergente ad angnlum inferiorem iinumquemque, spina valida suberecta incurvata ad angulum superiorem uuum- quemque instructa, etiam spinis 3-4 inter spinas majores irregu- lariter dispositis ; a vertice visa3 pentagonft", lateribi;s profunde concavis, spinis 5-6 ad angulos late rotundatos. Long, sine spin. 36'5 iJL, cum spin. 63 /x; lat. sine spin. 27-31 /x, cum spin. 46-49 /^ ; lat. isthm. 15 jj.. Huilla. Freq. in paludibus exsiccandis ; April 1860. No. 176. Etiam freq. inter Utriculariam, Morro de Lopollo; April 1860. No. 179. This species is somewhat allied to S. trUlcns-Neptuni, but is very distinct from it. 8. S. heteroplophorum, sp. n. (tab. 369, fig. 8). S. mediocre, l^-plo latins quam longius (sine spinis), profunde constrictum, sinu aperto acutangulo ; semicellulie transverse oblongcT, ventro inflato, apicibus pa3ne rectis (subconcavis), lateribus subrectis apicibus versus convergentibus, spina valida acuta convergente ad angulum inferiorem unumquemque, spina valida suberecta (subdivergenti) acuta ad angulum superiorem unumquemque, etiam cum spinis paucis niulte minoribus circa spinas majores subirregulariter dis- positis ; a vertice visjB triangulares, lateribus concavis et angulis obtuse rotundatis, spinis majoribus duabus ad angulos verticaliter dispositis, spinis minoribus circa angulos ; membrana glabra. Long, sine spin. 19 /x, cum spin. 36-37 /x ; lat. sine spin. 23-25 /x, cum spin. 33-40 /x ; lat. isthm. 10-5 /x. Huilla. Freq. in paludibus exsiccandis ; April 1860. No. 176. Etiam inter Utriculariam, Morro de Lopollo ; April 1860. No. 179. The arrangement of the spines on the much narrower angles (as seen in vertical view) easily distinguishes this species from .S. Hi/stri.v Ealfs. At each angle there are two large spines in a vertical plane, and about six much smaller ones round them ; the latter are some- times regularly disposed in a circle round the two larger ones. Var. latum (tab. 369, fig. 9). Var. cellulis latioribus, sinu minus aperto ; semicellulis angulis leviter subcapitatis et apicibus convexis, spinis parvis 6 multe reductis et in annulo circa spinis majoribus duabus ordinatis. Long, sine spin. 17 /x, cum spin. 26 /x ; lat. sine spin. 23 /x, cum spin. 28 /x ; lat. isthm. 6 /x. Huilla. In paludibus exsiccandis ; April 1860. No. 176. 9. S. Pseudohystrix, sp. n. (tab. 369, fig. 10). S. parvum, tam longum quam latum (sine spinis), profunde constrictum, sinu aperto acutangulo ; semicellula^ transverse rectangulari-oblongfe. WELWITSCh's AFRICAN FRESR-^'ATER M,GJE. 179 apicibus rectis et lateribus subrectis, spinis longis tenuibus acutis curvatis circ. 4 ad latus unumquodque ; a vertice visfe triangulares, lateribus leviter concavis, angulis truucatis cum spinis longis curvatis leviter divergentibus 4-5 instructis ; membrana glabra. Long, sine spin. 15-17 /x, cum spin. 21-27 /i; lat. sine spin. 16-17 /x, cum spin. 27-29 /x; lat. istbm. C-5-7-5/x; long. spin. 4-G-o/x. Huilla. In paludibusexsiccandis; April 1860. No. 176. Etiam inter Utricularknn, Morro de Lopollo ; April 1860. No. 179. This species differs from 5. IIi/striA- Ralfs in its smaller size, its more angular semicells, its fewer, longer, thinner, and curved spmes which are confined to the face of the truncate angles. 10, S. Welwitschii, sp. n. (tab. 369, fig. 1). S. subparviim, paullo longius quam latius (sine spinis), modice constrictum, sinu aperto extremo obtuso; semicelluhB oblongo-rectangulares, angulis rotundatis, apicibus latis et subrectis, spina valida suberecta ad angulum inferiorem unumquemque, spinis subincurvatis apices versus, spinis brevibus acutis 5-6 ad marginem lateralem utrobique; spinis parvis 10-15 (circiter) ad angulum unumquemque irregulariter dispositis et spina valida erecta supra eas ; a vertice visie penta- gonfe, angulis rotundatis et spinatis, lateribus concavis et glabris. Long, sine spin. 34-45 //, cum spin. 45-51 [i ; lat. sine spin. 29-31 ji, cum spin. 34-37 /^ ; lat. isthm. 16-18 /x. Huilla. In paludibus exsiccandis; April 1860. No. 176. This is a very characteristic species. 11. S. Corbula, sp. n. (tab. 369, fig. 2). S. parvum, 1^-plo longius quam latius (sine spinis), profimde constrictum, sinu aperto extremo rotundato ; semicelluLie transverse oblonga), marginibus lateralibus rotundatis, apicibus latis (subrequalibus in latitudine cellulis) et rectis, spinis gracilibus erectis et leviter curvatis 2 ad angulum superiorem unumquemque, spinis brevissimis conicis circiter 7 ad margines laterales, et seriebus duabus (circ.) intra marginem imumquemque ; a vertice visa) triangulares angulis late rotundatis, spinis brevissimis 7-8 ad angulos in ambitu et spinis similibus 11-12 intra marginem angulorum, lateribus glabris, rectis vel subconcavis. Long, sine spin. 27 ji, cum spin. 36 /a ; lat. sine spin. 23 /x, cum spin. 25 //. ; lat. isthm. 9*5 /x. Huilla. In paludibus exsiccandis ; April 1860. No. 176. This species has about twenty-five very short spines on each of the three angles of a semicell, over which is placed a pair of slender, erect and longer spines. It most nearly approaches N. Wi'licitxehii in form and arrangement of spines, but differs from it in being tri- angular in vertical view, and in having a pair of slender erect spines in place of the single stout spine of the latter species. The angles are also furnished with more numerous and shorter spines, and it is moreover a smaller, much more constricted species. Var. PULCHRUM (tab. 369, fig. 3). Var. semicellulis lateribus retuso-emarginatis ad medium et apicibus concavis ; a vertice visis lateribus concavis, angulis rotundo-truncatis et subproductis. Long. sine spin. 30 /x, cum spin. 42 /a; lat. (cum spin, brcv.) 27 /x ; lat. isthm. 9"5 /x. Huilla. Lopollo ; Febr. 1860. No. 192. N 2 180 WELWITSCh's AFRICAN FRESHWATER ALG.E. 12. S. actinotum, sp. n. (tab. 369, fig. 4). S. subparvum, circiter li-plo latins quaui longins (sine spinis), profunde cou- strictum, sinu acuto et aperto ; semicellnlpe transverse elliptico-fusi- formes, apicibus snbtruncatis, spina acutissima singula subcurvata ad angulum subacutum unumquemque horizontaliter disposita, seriebiis transversis duabus granulorum minutorum trans angulum unumquemque, serie verrucarum emarginatavum circiter G in mar- gine apicis ; a vertice visa) rotatfe, sexaugulares, lateribus profunde concavis et minute undulatis, spina gracili longa subcurvata acuta ad angulum subacutum unumquemque, seriebus duabus granulorum minutorum trans angulum unumquemque, cum annulo verrucarum emarginatarum 12 intra marginem, duabus earum sub base auguli uniuscujusque dispositis. Long. 23 ji ; lat. sine spin. 30 ji, cum spin. 57 /x ; lat. istbm. 9-5 /x. Huilla. In paludibus exsiccandis ; April 1860. No. 170. This peculiar Staurastrum does not appear to be closely related to any other. Var. SIMPLEX (tab. 369, fig. 5). Var. semicellulis sine annulo apicali verrucarum emarginatarum ; semicellulis late obtriangulari- bus, apicibus latis et subiectis ; a vertice visis pentaradiatis ; spinis validioribus longioribusque. Long. 30 /x ; lat. sine spin. 35 //., cum spin. 63 /x ; lat. isthra. 15 /x. Huilla. Inter Utricxdariaw , Morro do Lopollo ; April 1800. No. 179. 13. S. cassidum, sp. n. (tab. 308, fig. 21). S. parvum, circiter duplo longius quam latins, profunde constrictum, sinu lineari ; semicellulfB conico-pyramidatfe, apicibus et angulis basalibus ro- tundatis, lateribus rectis vel leviter retusis ; a vertice visfB triangu- lares, angulis acute rotundatis et levissime productis, lateribus rectis, isthmo trigone, angulis unius semicellulfe cum iis alterius alternantibus ; membrana punctata et leviter incrassata ad apices semicellularum. Long. 38'5-42 /x; lat. 20-22 /x; lat. isthm. 7-5-9-5 jx. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1800. No. 15. This species is distinguished from S. trihedral e'WoWe {Desm. U.S. 123, pi. 40, f. 12-14 ; West & G. S. West in Traus. Linn. Soc. 2nd ser. v. 200-1, t. xvi. f. 29) by its smaller size, its more conical semicells with comparatively broader apices and almost straight sides, by the form of its vertical view, and by the much smaller and more numerous markings on the membrane. S. trihedrale var. rhomboidcum West & G. S. West {I. c. f. 30) seems to be intermediate in form between this species and S. trihedrale, but it has the charac- teristic basal angles, the narrow apex, and the markings of /S'. tri- hedrale, whereas none of these characters are possessed by 8. cassidum. 14. S. areolatum, sp. n. (tab. 307, fig. 17). S. magnum, duplo longius quam latius, profunde constrictum, sinu sublineari et aperto extremo rotundato ; semicellulie subquadrata) angulis rotundatis ; a vertice visje trigone lateribus rectis ; membrana crassa, ad apicem crassissima, valde scrobiculata, scrobiculis majori- WELWITSCH's AFRICAN FRESHWATER ALG.E. 181 bus ad angulos tres efc apicem. Long. 133 /x ; lat. G5/x ; lat. isthm. 27 ji ; crass, membr. 3 //., Huilla. Inter Utriculariam, Morro de Lopollo ; April, IHGO. No. 179. This is very distinct from .S'. cosinaiiindes Nordst. (iu Viilmsl,-. Mcdd.f. d. natiuli. Foren. (1869), no. 14-15, 223, t. iv. f. 13 (1870) ), and it is diffei-ent in the form of its front view and in its membrane from any species of (Josniariam. Biirgesen, in Vidensk. Mcdd. f. p. 110. II Flora of Dumfriesshire, p. 114, Dumfries, 1896. 11 "Die Bliiteneinrichtung von Primula acaulis," Bot. Centralblatt, 55, p. 225 (1893). ** " Osservazioni sulla fioritura e fecondazione della Primula acaulis,'' Verhandl. d. Zool.-bot. Gesell. in Wien, 42, p. 73 (1892). ft Cf. Willis, loc.cit. FERTILIZATION OF SPKING FLOWERS ON THE YORKSHIRE COAST. 187 for insects are less likely to discriminate between the species than between their sexes. MacLeod has divided the willows into eavly- and late- flowering species. S. albn and frofiilis, types of those flowering after the bursting of the leaf-buds, were not observed at Scarborough. Using MacLeod's convenient separation, we get the followin" table : — Yorkshire . . Belgium . . Germany . . , HI. Hm. Hs. L. Dm. Ds. C. Etc. Total 4 2 1 1 5 21 1 2 37 4 15 5 1 11 15 2 — 53 8 56 9 + i 22 11 'd 1 111 + The want of small bees in Britain is very markedly shown. Comparing the individuals visiting, we notice that in the milder season the long-tongued bees visited in greater numbers. Table V., column E, shows this again. The bees only appeared at the very end of the observations. Owing to them we get in this table (V.) two maxima in the case of Saliccs, one due to the species obtaining a large share of the short-tougued flies, the second due to the appear- ance of these bees. The same double curve is found also in ThssUchjo, where it was due to the Muscidte and Scatophagida^ relatively. It is unsafe to lay any stress on the facts of these incomplete investi- gations, but such cases — well established — would help to demonstrate the origin of new species through seasonal dimorphism. ■' Narcissus Fseudo-iiarcissus. — The diameter of the cream-coloured perianth is -10-50 mm., the depth of the funnel-shaped space within tlje corona and tube of the flower about 45 mm., the breadth of the mouth being 15 mm. The stigma and the stamens, which it overtops by 4-5 mm., are well protected by the corona. Tbe anthers, which burst immediately after the opening of the flower, shed their pollen introrsely, in part on to the style. Large insects entering the flower will touch with their backs first the stigma, later the pollen-covered anthers and style, and as both 5 and ? organs are mature at the same time, one visit is all that is required. The passages to the three nectaries at the base of the flower lie between the filaments, and are 1-1-5 mm. in breadth and 6 mm. remote from the honey. Thus long-tongued insects alone can obtain the honey, in fact, the flower is a most marked bee- flower, and probably the scarceness of blossoms (they are very much picked for the market) alone prevented me from observing the right insect visitintvv?r»/s ; several others are found, sometimes among bushes, sometimes in the open ; while but a small minority — Alchemilla arvensis, I'hiipetrum ni[/ruin, Cuciilcaria officinalis, Vero)iica arcensis, and Tussilaqo — grow almost always where they get the full sun. On this we may found a fair hypothesis by which we can under- stand in part the early flowering of species. The key to the situation lies in the early flowering of the anemophilous trees. These can suffer from no competition for insect-visitors, and if it is advantageous to them to flower early, it must be for some other reason. Many certainly do flower early, and no better explanation could be desired than that given by Clarke* and Eobertsonf , namely, that the leaves would hinder the passage of the pollen from anther to stigma, not only by barring the way, but by preventing the wind from reaching the flowers. In the case of shade-loving entomophilous flowers the cause is the same — the insects would be prevented from seeing the bright colours by the mask of green leaves. There is little doubt * " The Philosophy of Flower Seasons," .Jhi. A^afMra?/.*?, xxvii.p. 769 (1803). t " The PhilosoiDhy of Flower Seasons, and the Phajnological Eelations of the Entomophilous Flora and the Anthophilous Insect-Fauna.'' Am. Naturalist, xxix. p. 97 (1895). FERTILIZATION OF SPRING FLOWERS ON THE YORKSHIRE COAST. 189 possible that this is a reason for the early flowering of many plants ; in the case of Tioisilario and some others it is probably otherwise, and competition with other similar blossoms is avoided by their early flowering. The micertainty of spring weather must affect the plants through the insects visiting them. The severe winter of 1894-95, by killing great numbers of small mammals — field-mice, &c. — probably had somethiug to do with the abundance of the Muscidte in the end of tbe following March, and perhaps the ScatophagidiB may have been more abundant in 1896 because the mild winter permitted their dung-feeding ]av\iG to continue growth through the greater part of it. Headers will remember Darwin's'-' classical instance of the effect of cats on the abundance of clover; just such a case of the compli- cated inworkiug of things is the apparent effect of a severe winter on the fertilization and consequent fruit-setting of plants flowering later. Writing of the island of St. Kilda, in the Outer Hebrides, Gibsonf says, "some species, at least in certain years, are not fertilized at all, e. g. Vicia seinum, Trifolium pratensc, and Lunicera." How seasons affect the seed-setting of different species is a question for the future. Dureau de la Mallef says that in thirty years, on one undisturbed moor, he observed five or six successive changes by which Lcriuminosm dominated over the grasses, and in turn grasses over the LcguminoscB. Were such changes in any degree the effect of want of fertilization ? Hermann Miiller has written, "the uniform perfection which Axell supposes to exist in Nature h.is no real existence. "§ Some observers among us have dazzled their eyes by the mechanisms of the most nearly perfect of flowers — e.fj. orchids — and have failed to see the imperfect around them ; others have blindfolded themselves to tbe advantages of cross-fertilization. To neither should we trust too much. I am convinced that the truth lies in the mean, and if this paper has suggested much that is imperfect, it has fulfilled its purpose. Lastly, I must express my thanks to those who have helped me in the field — my father, my brother, and Mr, J. C. Willis ; and, for whatever is of entomological worth, to my kind entomological friends Dr. D. Sharp, Messrs. G. H. Verrall, E. Saunders, and C. Warburton. * Origin of Species, chap. iii. Cth ed. i. p. 90; London, 1872. t Loc. cit. p. 155. J " M6moire sur rAltcrnancc," Annales des Sciences Nat. Ser. i. vol', v. p. .^53 (1825). § Fertilization of Flowers, p. 589. 190 NOTES ON MYRMECODIA. By James Britten, F.L.S. I HAVE lately been engaged in naming the drawings made by Sydney Parkinson of the plants collected during Cook's first voyage (1768-1771) ; and in the course of so doing have noted several points of interest which I hope later to publish in this Journal. Among the drawings is one of a Myrtnecodia, which seems worthy of special attention. Unfortunately, while I was collecting material on the subject, Mr. Hemsley, to whom I am indebted for some help, by what I must regard as a curious coincidence published in the Kew Bulletin a note upon Myrwecodia, in which he anticipates some of the information I had brought together.* As, however, this paper is mainly con- cerned with Banks's plant, I do not propose to omit the history of our knowledge of Myrmecodia as an Australian genus, which I had drawn up before Mr. Hemsley's printed note made me aware that he was working at the subject with a view to publication. The first recorded occurrence of any Myrmecodia in Australia seems to be that by Dr. George Bennett in this Journal for 1868, pp. 50-52. This, with a llydnophytinn, was brought from Cape York by Captain Nares in September, 1866, and was presented by him to the Botanic Gardens at Sydney. In December of the same year, Mr. C. Moore of the Sydney Gardens sent specimens to Kew, and a second consignment in May, 1867. Dr. (now Sir Joseph) Hooker, in acknowledging these, wrote to Dr. Bennett — " Their discovery in Australia is most remarkable": he speaks of the Myrmecodia as M. armata, and says that it arrived at Kew alive. Mr. Hemsley, however, tells me that the entry in the Gardens record states that the plants were dead on arrival. The next record of an Australian Myrmecodia — if we except a passing reference to Dr. Bennett's paper in Mueller's Fraymenta, vii. 45 — is in the Systematic Census of Australian Plants (1882), p. 75, where Mueller mentions M. ecldnata Gaud, as found in Queensland and North Australia. Prof. Beccari, in the chrono- logical arrangement of records prefixed to his admirable monograph in Malesia (ii. 7-340 (1884)), thinks that in all probability this plant, as well as M. armata of the earlier record, should be referred to M, Antoinii (misspelt Antonii in Jackson's Index) — a species from Thursday Island, Torres Straits, figured and described by F. Antoine in Oesterr. Bat. Zeitschrift, xxxii. 347-353 (1882), as M. echinata, but subsequently distinguished by Beccari (/,. c. 116).f * I am glad to note that the difficulties which rendered it "impossible to assign the papers in the Bitlletiu to single individuals " have apparently been overcome, as Mr. Hemsley's initials are ajipended to this article. In the interests of convenience it is to be hoped that this practice may be continued (see Journ. Hot. 1893, 382). t Since this note was written, M. Autoinii has been figured in Hot. Ma;/. t. 7517 from a specimen presented to Kew Gardens by Prof. Stewart in 1893, which flowered and ripened seeds in 189G. NOTES ON MYRMECODIA. 191 Although in the second edition of his Census (1886) Mueller adopts this opinion so far as the Queensland plant is concerned— the locality of North Australia is omitted from this edition — -it seems to me more probahle that the Australian plants are to be referred to M. Beccarii, under which species I place the plant collected by Banks. This plant, described by Sir Joseph Hooker in Bot. Mar/. t. 6883 (1886), was imported by Messrs. Veitch from Brisbane in 1884, "with the information that it was found in the Gulf of Carpentaria, and is extremely rare there." It is strange that a g^nus so remarkable should have been dis- covered in Australia nearly a century before any record of its occurrence in that continent should have been published in any scientific work; and it may be wondered that the passage in Hawkesworth's Voycujes — derived, like so much that is of interest in the collection, from Banks's Journal — should not have attracted the attention of botanists. The passage in the Journal, as pub- lished last year under the editorship of Sir Joseph Hooker, is as follows : — "A third sort [of ant] nested inside the root of a plant which grew upon the bark of trees in the same manner as mistletoe. The root was the size of a large turnip, and often much larger; when cut, the inside showed innumerable winding passages in which these animals lived. The plant itself throve to all appearance not a bit the worse for its numerous inhabitants. Several hundreds have I seen, and never one but what was inhabited ; though some were so young as not to be much larger than a hazel nut. The ants themselves were very small, not above half as large as our red ants in England; they sting indeed, but so little that it was scarcely felt. The chief inconvenience in handling the roots came from the infinite number ; myriads would come in an instant out of many holes, and running over the hand tickle so as to be scarcely endurable. Kumphius has an account of this very bulb ai.id its ants in vol. vi. p. 120, where he describes also another sort, the ants of which are black" (p. 304 : August, 1770). At the time this note was written, and indeed for long afterwards, Rumphius's was the only description of these remarkable plants; and Banks's observations are the only ones I know between the dates of Piumphius's Ilurtus Ainhoinensis (1750) and Jack's establishment of the genus Mtjrmecodia in 1825 {Trans. Linn. Soc. xiv. 122). It is thus the more to be regretted that Solander's carefully drawn-up description should never have been published, especially as the nature of this "nidus germinans" had long puzzled botanists. "Tali piante rimasero per i Botanici un enigma per molti anni, e Linneo non seppo a qual classe riportarlc, no dette loro nomo di sorta. Stickman die scrisse una dissertazione sull' IJcrhariuni Ainboinensc {Ainom. Acad. iv. 136j citando la tav. lv del vol. vi del Rumphius, dice di cssa semplicemente 'Nidus germinans ex formieis monstruosus bulbus'" (Beccari, I.e. 81). It may be of interest to print Solander's description as it appears in his MS. I'lanUc Nuvcn Jlollandia: — a careful transcript by himself of his rough notes, which we also have in the Department of Botany. 192 NOTES ON MYRMECODIA. Although I think it undesirable to print MS. names which can only be regarded as synonyms, it seems well to do so in this instance, as a means of tracing the description and of correlating it with the drawing, which bears the same name. Solander's description runs : — • Epidendroides tetrandra. Cnhjx tubulosus, margine integer, basin tubi arete cingens, 1- linearis, albus, tenuis, glaber, srepe obsoletus. Corolla monopetala, uivea, subcarnosa, subpellucida. Tubus cylin- draceus, e bulbo sen tubere Si^pe a formicis magna facto, egrediens; 4-linearis. Limhus quadripartitus, parum patulus. Laciniie oblongfe acutpe, subfequales, tubo duplo breviores. Filamenta quatuor, fauci ad sinus limbi inserta, alba, erecta, laciuiis corollas duplo breviora, a^qualia. Anthera. oblonga?, erectre, c^ruleaj. Germen inferum, ovatum, supra truncatum. Stijlns filiformis, albus, staminibus longior. Stiijma quadrifidum. L^r m//s filiformibus crassiusculis. Bacca (sub superficie bulbi recondita) ovali oblonga. i-uncialis, albido-subdiaphana, glaberrima, apice parum attenuata, ibique truncata, subquadrilocularis. Semina quatuor, unum in singulo locule, oblonga apice attenuata, pulpa glutinosa involuta. Folia omnia radicalia, oblonga, immerse paucivenosa, crassa, coriacea. Bnlhi parasitici (praecipue in Melaleuca Mscr.). Tuber subrotundo-puriforme [pyriforme] ,nonvero obtuse angulatum, fuscum, verrucosum, verrucis spinulosis saepe magnitudine capitis humani, interne carnosum, albidum. Fonnis .... nidum prc'ebens ; life enim per totam substantiam formant ambulacra & cellulas labyrinthi instar intricatas ; has in- habitant & in intra has soboles suas nutricantur. Et h;t'C nullo detrimento radicis ! Nidus Germinans Humph. Amb. 6, p. 119, i. 55, f. 2. The admirable drawing of this plant which John Frederick Miller made in 1773 from Sydney Parkinson's sketch corresponds so entirely with the figure of ]\I. Bcccarli Hook. f. that there can be no doubt as to the identity of Banks's plant with that species — an identity which is confirmed by Sir Joseph Hooker, who has seen the drawing. The sketch is endorsed in Banks's hand " Endeavours River," and this is important, as no specimens seem to have been preserved, nor do I find any reference to them in any of the Banksian or Solandrian MSS. or lists of the collections, unless, as I suspect, the entry "Ant's Nest" at the end of one of the rough lists of the plants of the voyage refers to the ]\I)/nnecodia. It is strange that so remarkable a plant was not selected for engraving, but neither plate nor engraving exists. We have in the British Museum Herbarium a fine specimen of a Mijrmecodia collected on Jobie Island — the home of many species of Mijrmecodia and Hydnophytum—hy George Barclay on the voyage of the Sulj^hur in 1840. I had hoped that this would prove to be THOMAS HICK. 193 new, but the leaves agree so exactly with those of the authentic specimens of M. sdlomonensis in the Kew Herbarium that I have no hesitation in referring it to that species. Beccari, however, saw no flowers, and as these occur on Barclay's specimen, I append a description, which Mr. Rendle has kindly drawn up for me. We have also a flowerless specimen from New Ireland (Barclay) which seems to me diflterent from any of those figured in Malesiu, and to be probably new; but only the intimate knowledge of the genus possessed by Prof. Beccari can justify the description of novelties from such imperfect material, and I therefore leave it. " M. SAL03I0NENSIS Bccc. Flowcrs crowded in axillary clusters among a dense dark ferruginous rameutum. Perianth tubular, 11 mm. long, constricted just above the middle, limb 4-fid, seg- ments triangular-ovate, with a sharp spreading apex. Stamens 4, subsessile at the constriction of the perianth, with alternating tufts of short white hairs; filament scarcely 1 mm. long, anthers scarcely 1*5 mm., connective not produced. Style 7*o mm. long, thickening below the equally bifid stigma. — A. B. Pi." Barclay notes on his ticket : " This plant has a large tuberous root. The flowers are white, and in some of them I found 4 stamens, but not universally so. It seems to prefer airy situations, as it is found only upon trees in exposed habitations " [sic). THOMAS HICK. [We are indebted to the Editor of the Naturalist for the loan of the excellent portrait of Mr. Thomas Hick which appeared in that Journal for March. A short notice of Mr. Hick appeared in last year's Journal of Botany, p. 488, but Mr. F. Arnold Lees's appreci- ation in the Naturalist contains information additional thereto, and we therefore reproduce it with the portrait. The remarkable literary style of the memoir cannot fail to lend the charm of variety to pages which, we fear, are apt to be dull: and we hope our readers will appreciate and understand it. — Ed. Journ. Box.] Any retrospect I may attempt of a life of fifty-six years so remarkable in its lesson as a triumph of mind over matter — though the subject of it called himself a materialist very nearly, if not quite, to the last — must be inadequate ; for, though I am almost the one oldest scientific friend of his left — Prof. W. C. Williamson, Dr. Spruce, James Abbot, and James W. Davis, all no more ! — I only knew Thomas Hick at all intimately, or saw him constantly, during the lustrum 1868 to 1873. I moved about much after that, whilst he, leaving Leeds for Harrogate, where he resided up to 1885, then migrated to Manchester upon his attaining the Assistant-Lecture- ship in Botany at Owens, under Williamson. For a civilian his was a battleful life, full beyond the average in controversial effort and strenuous inquiry. As a biologist, where Huxley led he followed ; the method, fidelity to truth, fearlessness in experiment and con- JouENAL OF Botany. — Vol. 35. [May, 1897.] o 194 THOMAS HICK. ti'oversy of that Wellington in the esoteric fields of Cosmos, ever evoking his profoundest admiration and faith. As a boy, of humble but respectable parentage, Hick was originally destined for manual labour; but what one may be forgiven for calling a lucky accident in the mill where he first went to work involved an injury to his left hand and loss of some fingers. This led him to become a pupil, a teacher, and eventually head master of the Lancasterian School at Leeds. When I first knew him he was studying, with more or less definite ideas, for the Degrees he afterwards attained. Science-teaching in schools was then coming to the front as a necessary in the curriculum of middle-class education ; and in the late sixties and early seventies he upheld the banner of nature-study by giving to others in night-classes at the Leeds Mechanics, at Bradford, and elsewhere, a sufficiency of that knowledge on plant life which a more spontaneous curiosity and enthusiasm had led him to seek after for himself. Much of the best woi'k of his life was done in this way, infecting others by his THOMAS HICK. 195 force of character and graphic aptitude in expressing what he knew ; before he had accomplished any of what it is the custom to style ' original ' investigation — definite little secrets wormed by tireless observation from the Grand Arcana of Life. Awakening interest in botany, for my early love like that of many another youth (Hick being seven years my senior) was entomology and ornithology, first brought me into contact with him in 1868. He, William Todd, and James Abbott were already concerned with problems in geology and theology cognate to life, and soon after we had 'kidneyed' to one another, Huxley delivered himself of that famous Edinburgh address on ' The Physical Basis of Life,' which stirred up into a blaze the smouldering clerical animosities which Darwin had, in another form, first raised with his 'Origin of Species,' some seven years previous. Early in 1870, Hick along with Todd, James W. Davis, Abbott, W. Watson, (another schoolmaster), and myself, formed ourselves into a small Mutual Improvement Society, meeting fortnightly at our homes in turn to read papers and discuss points in Science Progress. This, which we dignified by the name of the Leeds Scientific Association, was, I believe, in part the origin of the Leeds Naturalists' Society. Before that, for years, the nature-students of Leeds, mainly working- men whom the 'Philosophical' gentlemen of the time in no way recognised, used to meet at a Hall or Museum behind the present Corn Exchange, Davis and Hick first met tliere, Todd being their introducer. None of the friendships there formed with Hick were, I think, ever broken or even strained. Hick and Davis's characters being equally unjealous, earnest and sterling. For some years Hick was the reviewer of science books for the 'Leeds Mercury,' and many of his trenchant and well-informed critiques are remembered yet, notably that on 'As Ptegards Protoplasm' — a reply to Huxley's 'Lay Sermon,' by Hutchison Stirling. Hick's first original paper, about 1880, was, I recollect, on an overlooked point in the morphology of Ficaria verna. It showed an unusual gift of exact observation, and foreshadowed the brilliancy of later papers in the 'Journal of Botany' on the Continuity of Protoplasm in the tissues of certain Marine Algse. He was too careful and self-critical a worker to produce voluminously; albeit his later researches in the field of Fossil Botany at Manchester, for which more credit is his due than any mere list of his obiter dicta, as the Aide of a rather jealous Chief would seem to warrant, must prove a sufficient and enduring monument. ' Thomas Hick was a singularly simple-minded, unaffected, trans- parently-honest Yorkshireman ; strangely little exalted for one with such a gift of brain. His lectures were always marvels of lucidity and arrangement. A trifie blunt of speech and never quite losing his Yorkshire accent, he was respected by who listened to him, and loved by who knew him socially. Very matter-of-fact most people would have said, yet, at times, 1 am reminded, a vein of sentiment (as mayhap is the case with most of us) occasionally shewed itself running tiirough the solid strata of his mental organism. If this seems to belie, — to be at variance with outspoken materiaHsm, we o 2 196 EUPHRASIA SALISBURGENSIS FUNK., IN IRELAND. may reflect that, as yet, no scientific analysis of spirit has been made. This sensibility to the beauty of faith or feeling came to the surface at times in a moistened eye or a phrase spoken with 'bated' breath, and unexpectedly : who shall say that whatever arouses it has not its source in a fact, for which science, on its present plane, has no precise terms ? I would not wrong by a tittle so fine a character as Hick's in the memories of those near, and while he lived, dear to him ; but I would not have it understood that my summed-up impression of him was aught other than one of Appreciation ; and a Eecognition of the singular stability and depth of his con- viction, often reiterated to those mentally sib, that Matter was All, and all Matter, subject to partly unrevealed laws of Cosmical Evolution ; and that Mind, Soul, Spirit — whichever we term it — though possibly more than a mere property of matter known as yet by certain relations to it, was equally an evolutionary essence, probably subject to similar or parallel laws as yet incapable of formulation by a faculty which has not yet attained the acme of Possibilities. Hick had, years ago, more than a glimpse of that 'Natural Law' of ' sympathetic relationships ' in a ' Spiritual World' which has in recent years found tentative expression in such Physico-psychologic as that of Drummond and Joseph Morris. The motto of Who would be wise and true to Nature, for maybe ages yet, must be — Enquire, Observe, Ponder, re-enquire, re-observe, re-study, marking off precisely and reverently the eminences we each of us reach, suspending any 'final judgment' till in our turn ajnid phires. What more can we do than honestly strive To Know, or cease to be — the end of dormance of faculty — what we May Be, with a fool's cry ' We are at the End ! ' Beautiful World ! beautiful gift of Brain to comprehend it! are they not worth any effort, while environment forbids not ? The spirit of Thomas Hick seems, as I hold the pen, to inspire me to embody this, his life's creed, in words. It should offend no one's susceptibilities, for it was in him, and for all who live by it will be, manful, soulful, honest, and without fear. F. Arnold Lees. EUPHRASIA SALISBURGENSIS Funk., IN IRELAND. [The following interesting account of Euphrasia Salisburgensis bears so intimately upon the contributions to its history which have already appeared in this Journal that we have asked and obtained permission from the Editors of the Irish Ndtiinilist to transfer it to our pages. It appeared in the number for April last. — Ed. Journ. Bot.] In the Journal of Botany for November last attention was drawn to the Irish forms of Euphrasia by the publication of an instructive paper from the pen of Mr. F. Townsend, an acknowledged authority on this difficult genus. In this paper E. Salishwifensis Funk., an alpine or subalpine species of wide range on the European conti- nent, is recorded as an addition to the Irish flora on the faith of specimens gathered by the Rev. E. S. Marshall on the shores of EUPHRASIA SALISBURGENSIS FUNK., IN IRELAND, 197 Lough Mask, Co. Mayo, in July, 1895. The Lough Mask plant, as figured by Mr. Townsend in the plate which adds so much to the value of his paper, is obviously far from typical, but from a note in last month's issue of the Journal of liotany it appears that Messrs. H. and J. Groves have discovered amongst material collected in 1892 near Menlough, in Co. Galway, specimens which Mr. Town- send considers much closer to the continental plant. An elegant, slender-stemmed Euphrasia, gathered by myself in August, 1895, near Ballyvaughan, Co. Clare, where it grows in abundance on limestone crags, has since been kindly examined by Mr. Townsend, who unhesitatingly refers it to E. tialishxuyensis, and informs me that it is similar to the Menlough plant. This interesting Euphrasia is thus shown to range over a con- siderable area on the low-lying limestone tracts of West Ireland ; but it cannot justly be regarded as a recent addition to our flora. The plant, in fact, was gathered in Ireland so long ago as 1852, and was recorded as Irish, under another name, in the Cybele Hibernica in 1866. We find it first referred to in the following passage from a paper by Daniel Oliver published in the Phytuloyist for 1854, and describing a botanical tour made in Ireland two years earlier : — "■Euphrasia ? On Aran I collected a curious little form, some three inches in height, much branched from the base ; stem with a minute, aclpressed pubescence ; lanceolate or lanceolate-oblong leaves, with one, two, or three strong teeth on each side. I did not know to what species or form to refer it; but, examples being sent to C. C. Babington, he kindly informs me that he thinks it a form of the E. gracilis of Fries, although it strikingly resembles, and possibly may be, E. Salishurgensis .'"'■'•■ Two years later, in the Scottish Gardener for 1856, the same plant, this time under the name E. (jracilis Fries, was recorded by the late Mr. A. G. More from the limestone district of Castle Taylor and Garryland, Co. Galway. The finder, however, appears to have been dissatisfied with the naming of his plant, for four years later, in his paper "Localities for some Plants observed in Ireland,"! we find this further reference to it : — ^^ Euphrasia gracilis seems to belong rather to E. Salishurgcnsis ; in either case it is the E. ncmorosa of Grenier and Godron. But the Garry- land (and Aran) Euphrasia differs much from what I have gathered as E. gracilis on the heaths and downs of Kent. This latter is apparently the E. ericetorum of Jordan; but I do not suppose that either is specifically distinct." It appears clearly, from More's correspondence about tliis time with his friends the Rev. W. W. Newbould and Professor Babington, that he was strongly inclined to refer his Castle Taylor plant to E. Salisburgensis, and that he refrained from adopting that name only in deference to the opinion of the distinguished author of the Manual of British Botauij. Through the knidness of Miss More I am enabled to make the following interesting extracts from her brother's correspondence in illustration of this point. The MS. * Vol. iv. p. 679. t :sat. Hist. Reviciv, vii. p. 434. 198 EUPHRASIA SALISBURGENSIS FUNK., IN IRELAND. di*aft of the paper just quoted from had been submitted by More to Newbould Avitli the name E. Salisbiirf/eusis set down for the Garry- land Euph)\xsia, whereupon Newbould thus writes under date April 9, I860:— '■^Euphrasia SaUshnrgensis. — I would not use this name unless you were quite sure tlie plant was the Continental one. If I rightly remember, you showed me the plant, and it was identical with one I gathered on the border of Loch Neagh. This plant, I thought, was not E. Salisbnrgensis, but E. ojficinalin of Koch, approaching as nearly as possible to E. Salis- bnrgensis, and on mentioning this to Babington, I found that he had independently come to precisely the same conclusion." Shortly before this, March 19, 18G0, Babington, in reply to inquiries from More, had written : — "I do not find that 1 have any E uphrasia Salisbnrgensis or any other from Garryland. I have what I believe to be it from the great Isle of Aran.='' I have given up gracilis, and think that if we are to split here we must take the French view of them and leave ojficinalis and nemorosa to correspond with Boreau's groups, Calijce glanduleux and Calyce non- glatidiileiix." And, finally, after examination of Mora's specimens, Babington writes, April 17, 1860 :— " I certainly think that your Euphrasia is the same as mine from Aran. It comes very near to Salisbnrgensis, although the true Conti- nental plant has even more deeply jagged leaves than this. I am not inclined to separate the plant \_E. officinalis] into segregate species." Still dissatisfied with the uncertainty as to his Galway Euphrasia, More, in the following year, 1861, sent a sheet of specimens through his friend J. G. Baker to M. Boreau, author of the Flore du Centre de la France, by whom they were identified as E. ciiprea Jord. Under that name both the Castle Taylor and the Aran Island plants were recorded in Ci/hete Hihernica (1866) as a form of the aggregate E. o[]icinalis which Babington thought it inadvisable to "spht." The precise value to be given to Jordan's specific distinctions must depend on the greater or less development of the analytic faculty in the individual student. To many otherwise gifted botanists the true analytic vision is denied; they lack that instinct of dis- crimination which has enabled M. Jordan in his Espcces vcgetales ajfiiies to evolve 200 species from the Draba verna of Linnaeus, and for such as these /•,■. caprea will remain a mere phase of E. Salis- bnrgensis. Others may with Nyman rank it as a subspecies, others again with Gunther Beck as a variety, and so on through all the dwindling gradations from species down to "state." As for myself , having compared the Castle Taylor specimens named E. cuprea by Boreauf with those from Ballyvaughan, I can find no distinction of any importance. Some of the Castle Taylor specimens in their narrower leaves and more truly filiform stems and branches appear * Probably some of Oliver's 1852 specimens. t To one of these specimens is appended the following note in the hand- writing of the late A. G. More : " Seen by Bab. same as Aran Isles '" [specimen?] . SHORT NOTES. 199 to approach closer to typical K. SalL-banjensis than the plant from Ballyvaughan, while in the latter the more aristate toothing of the bracts comes closer to the type. In short, the late Mr. More's Castle Taylor plant of 1854 has as good a title to a place under K. Salisbuniensis Funk, as those from Menlough and Ballyvaughan, and has certainly a better title to that position than the plant from Lough Mask. It was simply in deference to Babington's objection to split E. ojficinaHs that the Castle Taylor plant was not recorded with the dignity of a new Irish species or subspecies some thirty-six years ago ; and that the plant was finally published in Cybele Hibernica as FJ. ciiprea rather than as E. Sdlisburi/ensis was due to M. Boreau's refinement on Mr. More's diagnosis. He who records the segregate necessarily records the aggregate, and the relation between E. citprea and E. Salisbunf- ensis is that of segregate and aggregate. The Irish distribution of E. SalisbHrijensis appears to be ex- clusively low-level. The stations Inishmore (Aran), Castle Taylor, Lough Mask, Lough Corrib (Menlough), and Ballyvaughan, all lie within 100 feet of sea-level, and if further observation should show that it occurs, as Newbould suspected it did, on the shores of Lough Neagh, then its descent to a level of fifty feet would be established. Nathaniel Colgan. SHORT yiOTES. Corrections (see p. 129, footnote). — Mr. Jackson rightly points out that Poiret's signature occurs at the end of the article on " Mixssenda," in Liaixnavck's Kiicijdopadut, and that his citation of M. (Bfiiiptiaca as of Poiret is therefore correct. In the footnote on p. 129, "1895" should be " 1896."— James Britten. Isle of Man Plants.— On p. 76 Mr. Arthur Bennett makes allusion to an "interesting anonymous paper on the Isle of Man Flora in the P/ii/hi!o,jist, iv. n.s. 161-169 (1860), dated from Christ's Church Parsonage, Maughould, Isle of Man." This paper was written by Rev. Hugh A. Stowell, as stated by himself in Thwaites's Isle of Man (Sheffield Publishing Company, 1863). Several pages of this book are devoted to some particulars of what was then known of the fauna and flora of the island, and, though bearing evidence of the absence of any attempt at proper revision, the facts stated seem to have been obtained from sources that, to a great extent, may be considered trustworthy. To those pages Mr. Stowell supplied a prefatory note, in which he says : — " The ' Notes on the Flora ' (Plienogamous) are in like manner an abridgement of a paper contributed by myself to the I'hijtolmjist of June, 1860." The short article on the mosses, by myself, in Plujtuloiilst, 1857, mentioned by Mr. Bennett, which appears to have been the earliest contribution to the bryology of the island, contained an enumeration of only 113 species, to which, shortly afterwards, fifteen species were added on the authority of Mr. 200 FLORA OF NORTHERN UNITED STATES, CANADA, ETC. Stowell and that of my old-time friend and frequent correspondent the late Dr. B. Cariington. In more recent years the island has been bryologically explored at various times, mainly by Mr. G. A. Holt, and that with so much thoroughness that the list of mosses had been increased in 1882 to 232 species. The aggregate result of the bryological investigations of the island is given in a most exact and valuable paper by Mr. Holt, "A List of Mosses in the Isle of Man, 1882," published in the Transactions of the Isle of Man Natural History and Antiquarian Society, 1888 ; a list which also should not be lost sight of in the event of any future projected Flora of the island. — J. H. Davies. NOTICES OF BOOKS. An Illustrated Flora of the Northern United States, Canada, and the British Possessions from Newfoundland to the Parallel of the Southern Boundary of Virginia, and from the Atlantic Ocean westivard to the 102nd Meridian. By Nathaniel Lord Britton, Ph.D., Emeritus Professor of Botany in Columbia University, and Director-in-Chief of the New York Botanical Garden, and Hon. Addison Brown, President of the Torrey Botanical Club. The descriptive text chiefly prepared by Professor Britton, with the assistance of Specialists in several Groups ; the figures also drawn under his Supervision. In three volumes. Vol. I. : Ophioglossaceje to Aizoace^e — Ferns to Carpet Weed. New York : Charles Scribner's Sons. 1896. Pp. xh, 612. Prof. Britton is entitled to the gratitude of botanists for the admirable work of which this is the first instalment. A concise flora, brought up to date, complete, and illustrated, containing an account of North American plants not too elaborate nor too learned for the amateur, and yet sufficiently complete and scientific for the student, has long been a desideratum. In saying this we are in no way disparaging Asa Gray's admirable Manual, which, as an easily portable volume, will always have claims on the field botanist; but Prof. Britton's book cannot fail to be regarded as a more complete and comprehensive manifestation of the North American Flora. We call it "Prof. Britton's book," because, as we learn from the preface, the claims of Judge Brown to recognition are of a some- what shadowy description, and although in a few cases specialists have contributed the descriptions of certain groups, the plan and execution of the work as a whole is his. Mr. L. M. Underwood has undertaken the Ferns and Fern Allies ; Dr. Morong the Naiad- acea, Orchidacecc, and some smaller orders of Monocotyledons ; Mr. F. V. Coville the Juncacea: Mr. J. K. Small the Pohjijonacea ; while the assistance of Mr. G. V. Nash in the Graminea is acknow- ledged. The main plan of the book corresponds largely with that of FLORA OF NORTHERN UNITED STATES, CANADA, ETC. 201 Bentbam's Illustrated Handbook, which seems to have suggested it. But in certain small points an advance upon the model is to be commended : thus Prof. Britton gives a reference to both place and date of publication of every name cited — an immense convenience, which we have always hoped to see adopted by the writers of our British floras ; and the comma which English and American botanists usually insert between the name and the authority has disappeared. The descriptions are short but clear ; there is a certain amount of synonymy ; and the illustrations, if not as good as Fitch's, are very helpful. As, by Prof. Britton's kindness, we are able to give examples of these, we print with them the accompanying text, and thus enable our readers to see how the book is arranged. "Abies balsamea (L.) Mill. Balsam Fir. Finns bahamea L. Sp. PI. 1002. 1753. Abies balsamea Mill. Gard. Diet. Ed. 8, No. 3. 1768. A slender forest tree attaining a maximum height of about 90° and a trunk diameter of 3^ usually much smaller and on mountain tops and in high arctic regions reduced to a low shrub. Bark smooth, warty with resin 'blis- ters.' Leaves fragrant in drying, less than 1" wide, 6''-10" long, ob- tuse, dark green above, paler beneath, or the youngest conspicuously whitened on the lower surface ; cones cylindric, 2'-4'long,9"-15" thick, upright, arranged in rows on the upper side of the branches, violet or purplish when young ; bracts obovate, serru- late, mucronate, shorter than the broad rouuded scales. Newfoundland and Labrador to Hudson Bay and the North-west Ter- ritory, south to Massa- chusetts, Pennsylvania, along the Alleghenies to Virginia, and to Michigan and Minnesota. Ascends to 5000 ft. in the Adirondacks. Wood soft and weak, light brown ; weight per cubic foot 24 lbs. Canada balsam is derived from the resinous exudations of the trunk. May- June." "Lilium Canadense L. Wild Yellow Lily. Canada Lily. Lilium Canadense L. Sp. PI. 303. 1753. Bulbs subglobose, l'-2' in diameter, borne on a stout rootstock, composed of numerous thick white scales. Stem 2°-o= tall, slender 202 FLORA OF NORTHEEN UNITED STATES, CANADA, ETC or stout ; leaves lanceolate or oblong-lanceolate, verticillate in 4's-lO's or some of them alternate, acuminate, 2'-6' long, 3"-15" wide, finely roughened on the margins and on the veins beneath ; flowers 1-16, nodding on longpeduucules ; peduncules sometimes bearing a small leaf-like bract ; perianth- segments 2'-3' long, yellow or red, usually thickly spotted below, recurved or spreading, not clawed ; capsule oblong, erect, Ih'-^' long. In swamps, meadows, and fields, Nova Scotia to Ontario and Minnesota, south to Georgia, Alabama, and Missouri. Ascends to 6000 ft. in North Carolina. Red-flowered forms with slightly spreading perianth- segments resemble the fol- lowing species, and forms with strongly recurved segments. L. superbum. June-July." We are not going to raise for discussion points of nomenclature, but we think our readers may like to know the rules which (for the present) are adopted by a large number of American botanists. With some of them we are in entire accord ; others are open to discussion ; some we think undesirable, and we doubt whether they are likely to be generally adopted. We cannot think botanists will endorse the action by which the well-known Kuiuigia of Linnaeus is set aside in favour of the brand-new Macoiinastrum — merely because Adanson had a name Konuj, which has never been taken up — although such action may be a legitimate outcome of the application of Rules 5 and 8. Nor can we regard Rule 10 as of equal importance with the rest, although it covers Dr. Brittou's action in preferring Tissa to Buda, under circumstances which will be familiar to our readers. The Rules are as follow : — " Rule 1. — Priority of pubHcation is to be regarded as the fundamental principle of botauical nomenclature. "Bale 2. — The botanical nomenclature of both genera and species is to begin with the pubUcation of the first edition of Linnieus' Species Plantar am in 1758. "Rule 3. — In the transfer of a species to a genus other than the one under which it was first published, the original specific name is to be retained. '^ Rule -i. — The original name is to be maintained whether published as species, subspecies, or variety. " Rule 5. — The publication of a generic name or a binomial invalidates FLORA OF NORTHERN UNITED STATES, CANADA, ETC. 203 tlie use of the same name foi' anj' subsequently published genus or species, respectively. "Bale 6. — Publication of a genus consists only (1) in the distribution of a printed description of the genus named ; (2) in the publication of the name of the genus and citation of one or more previously published species as examples or tj'pes of the genus, with or without a diagnosis. " linle 7. — Publication of a species consists only (1) in the distribution of a printed description of the species named ; (2) in the publishing of a binomial, with reference to a previously published species as a type. " Hide 8. — Similar generic names are not to be rejected on account of slight differences, except in the spelling of the same word. "Rule 9. — In the case of a species which has been transferred from one genus to another, the original author must always be cited in parenthesis, followed by the author of the new binomial. " Hale 10. — In determining the name of a genus or species to which two or more names have been given by an author in the same volume, or on the saine page of a volume, precedence shall decide." Among the alterations in nomenclature are a few which affect oiir British list. This will, we fear, distress our good friend Mr. Clarke ; but it seems probable that in the next London Cataloyue the following changes will be necessary* : — Juncoides Adans. (1763) for Luzula DC. (1805). — Unifolium Adans. ,, ,, Maianthemum Wigg. (1780). Gyrostachys Pers. (1807) ,, Spiranthes L. C. Rich. (1818). -Peramium Salisb. (1812) ,, Goodyera Br. (1813). ^Savastaua Schrauk. (1789) ,, Hierochloe Gmel. (1747).- _^Dondia Adans. (1768) ,, Suaeda Forsk. (1775). SucBchi maritima becomes Dondia innritiina Driice — a name which Mr. Druce published in his much-criticised paper in the Annals of Scottish Xat. Hist, for 1896. We demur, however, to the super- session of Elodea Michaux (1803) by Philotria Raf. (1818), which is rendered necessary by the application of Rule 8 ; and w^e cannot think that botanists will agree to accept Rule 5, under which we suppose it is that Nartlierimn becomes Abunui. We think some hesitation is justifiable as to the adoption of Lcptorchis Thouars in place of Liparis. Prof. Britton refers to " Nouv. Bull. Soc. Plilom. [sic] 314," meaning 317, where Thouars spells the name Leptoikis, but excludes the two American species (one of which is L. Loeselii) from it. Kuntze adopts the name, and, vwre sua, sweeps into the genus a vast number of species by the simple process of substituting Lejitoichis for Liparis. On the other hand, Jackson does not recog- nize the genus, and we believe there is some doubt as to the actual position of this and the other names given by Thouars. We are sorry that Prof. Britton has felt compelled to yi^d to "the general desire" for what are called " English names," and regret still more that a mistaken purism leads bim to reject so old a name as "Dog's-tooth Violet" for Lri/thronimn, on the ground that it "is calculated to mislead as to the nature of the plant." He even goes so far as to say "the species are erroneously called Dog's- * Another may be mentioned here : Damasonium Alisina Mill. (Diet. 1768) antedates D. stdlatnm Thuill. (1799). 204 BULLETINS OF U. S. DEPARTMENT OF AGRICULTURE. tooth Violet," although the name goes back at least as far as Gerard, and no other plant has borne it: "Adders-tongue" is preferred, although that is also given (as is usual) to OpJuoijlossuw. "Assiniboia Sedge," "Hair-grass Dropseed," " Scirpus-lilve Sedge," "Large-tubercled Spike-rush," "Knieskern's Beaked Eush," are samples of what are supposed to be " English names." A word must be said in praise of the typographical arrangement and excellent printing. The paper, too, for those who do not dislike a shiny surface, is very good, although somewhat heavy. We trust that this Flora will proceed apace to its completion, and we cordially recommend it to those of our readers who are interested in North American plants. James Britten. U. S. Department of Agriculture, Division of Agrostolor/i/. Bulletins Nos. 4 & 5. Washington, 1897. The first of these publications is a pamphlet, of forty-three pages, with five plates, and fifteen figures in the text, entitled " Studies on American Grasses." The work is chiefly that of Mr. Lamson-Scribner, the Government Agrostologist, and, being purely of systematic interest, would have seemed hardly likely to commend itself to a government department. It contains (1) a restoration of Sehlechtendal's genus Lvophonia : (2) a list of the grasses collected by Mr. Palmer near Acalpulco, Mexico, 1894-95, with the descrip- tion of a new genus, Fourniera, of the tribe ZuysiecB : (3) a list of grasses collected by E. W. Nelson in Mexico, 1894-95, with several new species ; (4) results of the examination of some American Panicums in the Berlin Herbarium and that of WiUdenow by Tlieo. Holm ; (5) analytical keys to the species, and notes on the native and introduced members of the genera Hordeum and Af/ropi/ron, with the description of no less than nine new species and thirteen new varieties in the latter genus ; (6) miscellaneous notes and descriptions of new species. In papers 3, 5, and 6, Mr. Scribner is associated with Mr. Jared G. Smith. There are fifteen figures in the text, and five plates, none of which call for praise. If a thing is worth a plate, it is surely worth the expenditure of sufficient trouble to make it more than a rough sketch ; and this criticism might be extended to other American publications. Future work must settle the value of the new species ; the descriptions, at any rate, are fairly comprehensive. We must, however, enter two protests. The first against the use of the tri- nomial ; trinomials are, in fact, in some pages almost as frequent as binomials. The second in reference to Mr. Scribner's new name C/uEtochloa. This, if you please, is only the well-known genus Setaria, which has become " untenable," first because "at an earlier date the name was employed by Acharius to designate a genus of lichens"; and, second, because it was first applied by its founder Beauvois to a species of Pennisetum. With the help of Mr. Gepp I have looked up the lichen point, and find that Acharius described Setaria in Xoi'a Act. Ficy. Acad. Sc. Suec. xv. (1794), and repeated BULLETINS OF U. S. DEPARTMENT OF AGEICULTURE. 205 it iu bis Lichenofjraph. Prodr. (1798) (p. 219). Twelve years later, however, in liis Liche)wf/raph. Univ. (1810), p. 120, he replaced it by Alectoria, giving no reason for the change, and the second name has been universally adopted by lichenologists. Here, then, is a good chance for somebody to trot out all the subsequently described species of Alectoria under the name Setaria, which, without doubt, has priority I As regards Mr. Scribner's first reason, we see that it holds if we consider that a seed-plant and a lichen cannot have the same generic name. As regards the second reason for getting rid of Setaria, "its first application to a species of Pennisetum places it at once among the synonyms," this is a bad piece of book-work, and illustrates the great danger of rushing out new genera without even working up the literature. If Mr. Scribner had been revising the genus — and we think that only under such conditions has a man any right to make a wholesale change in the names of the species — he would probably have found his opening statement inaccurate. He says the name Setaria "was first applied by Beauvois (in Oware and Benin) to a species of Pennisetum." Now, as a matter of fact, although the volume in question (Beauvois' Fl. (VOware et Benin, vol. ii.) bears the date 1807 on its title-page and 1810 on its cover, part of it at any rate was not published till after 1810. There are frequent references to names published in Brown's Prodromns (1810), but what makes it especially bad for Mr. Scribner's reputation as a bibliographer is that at the place in question (ii. 80), immediately following the name Setaria we read ''Setaria Ess. d'Ai/rost."! It looks as if Mr. Scribner had not even troubled to refer to the description of the genus which he is so anxious to re-name. If we refer to Beauvois' Essai d'Affrostnt/raphie, we find (p. 51) ''Setaria nob.," followed by a description and an enumeration of those species of Panicnm (including ijlaucuni, italicum, verticil/atum, and viride) which the author considered to belong to his genus. Tliere is no reference to the Elore d,' Oware et Benin, nor to the species, S. lonijiseta, which is described on p. 80. On p. 70, under Sac- charitm, is another reference to the Essai, in which the number of the page and that of a figure and plate are cited, so that it seems pretty clear that, whatever the date on the cover of the larger work, part, at any rate, and that the part now in question, did not appear till after the Essai (1812), and that the first description of Setaria as a genus of grasses represents not Pennisetum, but what is now, and has been for years, understood by Beauvois' name. Bulletin No. 5 is "A Report upon the Grasses and Forage Plants of the Rocky Mountain Region," by P. A. Rydberg & C. L. Shear, and contains forty-eight pages, with twenty-nine figures in the text. The figures are as poor and of as little value as those in the former Bulletin. The matter, which includes certain field notes and general observations on the value of the plants from an economic point of view, better represents the work of a department of agri- culture than the "Studies." A. B. Rendle, 206 Flora de Chile. Por Dr. C. Reiche & Dr. F. Johow. Bajo la co-operacion del Prof. F. Philippi. Santiago, 1895-6. 8vo. Parts I. & II. It is now nearly sixty years since the first volume of Claude Gay's Flora of Chili was published, consequently the present work is one which is much needed, and one which ought to be of great service to students of the flora of this highly interesting country. Both the authors are previously known to botanists. Dr. C. Reiche has given us a careful revision of the Chilian species of Viola and of O.ralis* and Dr. Johow has quite recently published his Esiudios sabre la Flora de las I.das de Juan Fernatide;:, containing an account of the vegetation of these well-known islands, this latter being specially interesting, inasmuch as nearly half of the flora is endemic and contains many remarkable species. The territory included by the present " Flora de Chile " extends from 18'' S. lat. to Cape Horn, and from the Pacific Ocean to the adjoining Republics ; it will thus be seen that the country included varies, from possessing a climate where there is practically no rain- fall at all, to one where the annual fall is considerable. The vege- tation in the north is very limited, and we can gain a fair idea of the curious character of the flora of these desert districts from the account of Dr. F Philippi's travels in the province of Tarapaca,t and from his father's, Dr. R. Philippi's, Florida Atacamemis, in which latter work the author enumerates scarcely four hundred species. In some of the valleys, for instance, near Copiapo, years pass over without rain falling at all ; but dews are frequent. Farther south showers are only occasional, sometimes after an interval of three years ; in the vicinity of the river Biobio, Dep. Conception, rains fall regularly in winter, and south of this river the rains are irregular but fall heavily. Trees are absent in the north, but the southern forests contain a variety of excellent timber. The authors of this Flora have been fortunately enabled to work through the material collected by the Drs. Philippi in the National Museum, without which, indeed, the work would have been im- possible. This can be easily seen by glancing at the Catalogue issued by Dr. F. Philippi in 1881, | w^hich contains an enumeration of 5358 vascular plants, a large percentage being his own species or those of his father. The first part of the present work carries us to the end of CapparidacetB, the second part from Flacourtiacete to Coriariacea ; thus included in the volumes we have several genera treated of, which are peculiarly interesting in Chili for one of two reasons. Either, as in the genus Cristaria, in Malvaceae, nearly all the species are endemic, or, as in lianunculus, Viola, Silene, Cardamine, Malcaslriiiii, and O.calis, the genera are widely difi'used, but a large proportion of the Chilian representatives are endemic. * Viola Chilenses. Engler's Jalirhuch, xvi. pp. 405-452. " Zur Kenntniss der chilenischen Arten der Gattung O.ralis." Engler's Jalirhuch, xviii. pp. 259-305. t Verzeichniss aiifder Itodiehene der Procinzen Antofagasta vnd Tarajjcica. 1891. \ Cataloriui Fldiitiiruin rasritlimim Cltilenstitnt. Dr. F. Philii^pi. 1881. FLORA DE CHILE. 207 The general get up of the work leaves a good deal to be desired. For a publication of tliis importance better paper should have been used, and here and there more careful editing is certainly necessary. Prefixed to each of the genera we have an analytical key, which is of considerable assistance in the identification of the species and which was wanting in Gay's Flora. Occasionally these keys seem to want rather more care bestowed upon them : thus, on p. 215, in the genus I'alava, the fourth species with " Hojas superiores bi- pinnatifidas," surely ought to be "dissecta " and not "pinnatifida." The authors do not retain the original spelling, Palaua, in place of the more recent PaJava, the genus being named in compliment to Antonio Palau y Verdera, a professor of botany at Madrid. We doubt the advisability of transferring Malva Beichei Phil, to Sida : and we also doubt whether Anoda ! strictijiora Steudel is really a species of Anoda. It is founded on Bertero No. 406. When in Paris, a year or two ago, we were enabled, through the kindness of Mens. Drake del Castillo, to see a portion of Steudel 's herbarium, and the specimen there (Bertero, No. 406) was certainly either identical witb, or very closely allied to, Modiola multijida Moench. There may, however, be more than one plant bearing this number. We are glad to see the authors have adopted a suggestion made some time ago in this Journal, by placing the genus Tarawa Phil, as synonymous with Malrastrum. There can be little doubt that this is its correct position. The authors have not dealt with quite all the plants about which information is desirable. In Mal- vace(F, for instance, what has become of Ciistaria .^ Yidali Phil., C. hastata Phil., C Larranagoi Phil., Spharalcea pUcata Phil., and 5. arenaria Phil., all species published by Dr. Philippi in 1893, in the Anales de la Univeisidad .- The difl'erence between the present Flora and its predecessor of sixty years ago is strikingly shown if we take any large genus such as (Kvalis: in the older work forty-one species were enumerated, while in the present volume there are ninety. So many points occur to one in connection with a striking flora like that of Chili, that it is impossible even to mention them in a brief notice. A careful comparison of the Chilian flora with that of the adjoining Argentine Republic has been made by Dr. R. A. Philippi, =•= wherein the points of similarity and dissimilarity are brought out. Thus in the Argentine we have many natural orders which have no Chilian representatives, and vice rersa: — Menispermacea:, Meliacfip, oiarinecF, Maer-crueutus x Heritieri). S. cruentus crosses very freely with the garden Cineraria, and as the latter never exhibits any trace of the characters of S. Heritieri, it was concluded that that species had no part in its origin, and that, as in the case of the Cyclamen, the striking development of S. cruentus in cultivation was due to the continued accimiulation of gradual variations. 209 NOTES ON SOME RA.RE SPECIES OF MYOETOZOA. By Arthur Lister, F.L.S. Badhamia foliicola, n. sp. A species of Badhamia belonging to the group with free spores, which appears to have been hitherto undescribed, was obtained in considerable abundance in Waustead Park, Essex, in September, 1896. It was found in rather large growths, scattered over an area of several yards, on deeply-strewn dead leaves of sycamore and Spanish chestnut. The sporangia are mostly hemispherical, O'5-l mm. diam., sessile and rather crowded; some are pyriform on orange-brown stalks 0*2 mm. long, standing either singly or in clusters of three to six. The colour is dark grey, violet, or softly iridescent in consequence of the membranous sporangium-wall being free from deposits of lime ; the grey colour is caused, as seen under the microscope, by reflections from the minutely plicate wall. The capillitium is of the usual Badhamia character, forming a network of broad strands, but is almost destitute of lime. The free spores are violet-brown, very minutely warfced, and closely resemble those of B. jmnicea Rost. On some of the leaves an orange-brown sclerotium was observed ; this revived after being in water for a few hours, and the yellow Plasmodium spread over the leaves for a couple of days, when it changed to sessile sporangia similar to those gathered in the Park in all respects, except that the lime in the capilUtium was more abundant. Another gathering was obtained on a large heap of dead leaves at Highcliff, Lyme Regis, on 18th February, 1897. The sporangia were all sessile, and grey with an iridescent shot, exactly resembling those found in Essex. There is a specimen in the Strassburg collection which closely resembles our gatherings in the grey, membranous sporangium-wall and in the broad network of the capillitium almost destitute of lime. The sporangia are sessile on the stalks and refuse skins of grapes. It may be the same species, but in our ignorance of the colour of the Plasmodium it is difficult to be certain, for, in common with our gatherings, it agrees in all other characters, except in the habitat, with some limeless forms of Badhamia panicea Rost. It was named Badhamia verna Rost. — syu. Physanim vernum Somf. Accepting the specimen as a type of that species, I suggested that B. verna was a form of B. panicea (Brit. Museum Catalogue of Mycetozoa, 31). Prof. A. Blytt, of Christiania, has kindly supplied me with part of the original type of I'Jujmrum vernum, gathered by Sommerfelt in 1827. It is a true P/(//.s7< /-urn, as shown in the' de- scription of the species in the sequel, and has no resemblance to our gatherings or to the Strassburg specimen above mentioned. I take this opportunity to correct my suggestion with regard to Badhamia rerna in the B. M. Catalogue. I propose the name of Badhamia foliicola on account of the Plasmodium inhabiting dead leaves, and this feature, together with the yellow colour as contrasted with the white plasmodium of B. panicea, are the grounds for claiming it as a new species. Journal of Botany. — Vol. 35. [Junk, 1897.] p 210 NOTES ON SOME RARE SPECIES OF MYCETOZOA. B. MAGNA Peck. Mr. F. L. Harvey has sent to the British Museum a specimen of this rare species gathered at Orono, Me., U. S. A., hy Mr. C. W. Knight, in October, 1896. Tiie spores differ shghtly from those of Pecli's type in being more distinctly spinulose under high magnification. B. uEciPiKNs Berk. A specimen of this species has been kindly submitted to me for inspection by Mr. Robert E. Fries, of Upsala. It was found by him in Wermland, Sweden, in 1896, on oak bark ; it closely resembles Curtis's type from S. Carolina in the Strassburg collection. This appears to be the second recorded gathering in Europe. B. RUBiGiNosA Eost. A large form of this species was found at Bryn Dinas Mawddry, North Wales, in Sept. 1895. The sporangia are globose, 0-8 mm. diam., flattened and somewhat umbilicate beneath, on stout cylindrical stalks about 0-5 mm. long. The Plasmodium was bright yellow, spreading over moss and rock. An abundant gathering of the usual pyriform type was obtained by Mr. E. S. Salmon in Epping Forest on Nov. 21st, 1896. All the English gatherings of this species I have met with have the spores marked with strong warts or broken bauds which distinguish var. /j. dicti/ospora from var. a. gauiina. Physarum vernum Somf. rUismodiiun probably white. Spormu/ifi sessile, more or less crowded, hemispherical or somewhat elongated plasmodiocarps ; white, or iridescent from the absence of lime in the sporangium-wall ; occasionally seated on a membranous whitish hypothallus. CapiUitium of numerous small angular white lime- knots connected by many branching hyaline threads. Sometimes the lime-knots are large and branching, or confluent, forming a pseudo columella. Spores spinulose (magnified 1600 times), dark violet-brown inclining to red, 8-12 fx diam. Hab. On dead leaves and twigs. Part of the type of this species from Sommerfelt's herbarium, named by himself and gathered at Christiania in May, 1827, has been furnished me by Prof. A. Blytt. It is perfectly matured, but the sporangia are mostly broken, and the white capillitium with its numerous lime-knots projects in little heaps above the ruptured sporangium-wall. Although the lime-knots are usually small and angular, they vary much in size, and are sometimes branched with few connecting hyahne threads, approaching the capillitium of Badhamid in form ; this circumstance may have led Rostafinski to include it under the latter genus in his monograph as Badhamia verna. On the one hand, it is allied to Phijsanua cinereum, which it resembles in the sessile plasmodiocarps as well as in the capil- litium ; in the latter species we often meet with a capillitium consisting of a network of broad threads charged with lime almost throughout with true Badlnmiia character. On the other hand, it is allied to I'/ii/saruin cumpresmui. in the dark spores. We have met with the form duriug many years. In Epping Forest it is rather abundant on dead holly-leaves. Here the sporangia are most frequently of iridescent-purple colour from the absence of lime in the walls, but others have the walls charged with hme. We NOTES ON SOME RARE SPECIES OF MyCETOZOA. 211 have gathered the iridescent form at Lynton, N. Devon, and in Wanstead Park, Essex. At Lyme Kegis and also in N. Wales the species occurs with white and usually widely-scattered sporangia, the iridescent form being less common. There are specimens in the Kew collection from Aiken, N. Carolina ; Cuba, Madras, and Paraguay, placed under the name of Physarum cinereum, which would now be referred to P. vernum. But the capillitium usually contains small angular lime-knots filled with large lime-granules 1-2 /x diam., which often coalesce into a vitreous mass. The knots are sometimes large and -unite into a pseudo-columella, or, again, the capillitium has the character of Badhamia, as in the case of P. cinereum, mentioned above. The spores, however, are always constant in their dark colour, and before receiving Sommerfelt's type I had contemplated publishing an account of the form as a dark-spored variety of P. cinereum, which is normally characterized by its pale spores ; it is satisfactory, however, to be able to trace it to a species already named, for notwithstanding the intermediate place it holds between its two companions, rendering some gatherings difficult to determine, yet the main characters are constant. P. PENETRALE Rex. I have received a gathering of this Phy- sarum from Dr. E. Nyman, who collected it in the Ivungsgarten, Upsala, on July 31st, 1895. The species is remarkable in the slender flesh-coloured stalk being prolonged as a columella through more than half the length of the sporangium. Tlie present speci- men corresponds in all respects with Dr. Rex's type. This is the third recorded European gathering. The specimen in the Strass- burg collection referred to in B. M. Cat. j\[ijc. 49, has no locality given, and no name of the collector ; this in itself implies that it is not of foreign origin. The other record is British. A small group of nine sporangia on Junyennunnia on a pine-stick was collected by Prof. I. Bayley Balfour at Moffat about the year 1879, but the identity of the species was not discovered until last year. The sporangia were all mounted in glycerine jelly on two slides ; one of these is in the Royal Herbarium, Edinburgh, the other is in my own collection. P. MfjRiNUM List. Dr. Nyman has furnished me with a specimen of this species, gathered by himself in the Kungsgarten, Upsala, July 31st, 1895. It is the sessile form similar to the specimen from Moflat referred to in B. M. Cat. Myc. 42. This is the second recorded European gathering. P. cALiDRis List. An interesting form of this species was obtained at Witley, Surrey, in Sept. 189G. The sporangia are nearly all sessile, a few having short stalks with characteristic red colour and translucence. The capillitium is almost of Badliamia type, with few hyaline threads ; the sporangia are strongly rugose. In the capillitium and sporangium-wall the gathering resembles the type of P. ni)dulitsum Cke. & Balf. from S. Carolina, referred to in B. M. Cat. Myc 52. An extensive gathering near Amesbury, Wilts, in Aug. 1895, has slender capillitium, with the lime-knots almost absent in some sporangia. Other specimens p 2 212 NOTES ON SOME KAKE SPECIES OF MYCETOZOA. have a capillitium intermediate between these two extremes, and show a variation in this character, greater perhaps than in the different varieties of P. nutans Pers. Tlie proof thus afforded of the specific identity between P. nodiilosum and the Lyme Eegis gathering first described in 1891 under the name of P. calidris {I. c. 52) shows that the former name should take precedence. P. viREscENS var, f3. obscurum. a gatheriug of this marked variety was obtained under a ckimp of hollies in Eppiug Forest, near Loughton, on Nov. 3rd, 189G. It was on a holly-leaf, and is similar to the specimen figured JJ. M. Cat. J\[)jc. PI. xx. b, except that the sporangia are all subglobose and somewhat scattered, and that the capillitium is less profuse. Chondrioderma roanense Eex. I have lately received two speci- mens of this species from the United States of America. One is from Dr. W. C. Sturgis, of New Haven, Conn., collected by him on "hemlock bark " at Shelburne, N.H., in Sept. 1896. The other is from Mr. F. L. Harvey, of Orono, Me., who found it in the neigh- bourhood of that town in the autumn of 1896. He states (Bull. Tone]) Bat. Chih, xx. No. 2, 67) that it was met with in some abundance by Mr. Merrill at E. Auburn, Me. These repeated gatherings confirm the integrity of the species. It is referred to B. M. Cat. Myc. 84, under tbe account of C. radiatum as needing further records to establish its specific distinction. The specimens correspond exactly with Dr. Hex's type, except that the sporangia are more globose, and tbe black stalks are longer. Diderma concinnum B. & C. Very little remains of the type- specimen from S. Carolina, No. 3021 (Kew Collection, 1476), named as above in Berkeley's handwriting, but there is sufficient to show it is a fairly typical form of Clumdrioderma radiatum Rost. The apparently sessile sporangia are of the usual size and colour, with a sporangium-wall of typical character. The columella is hemi- spherical or subglobose on a broad base. The capillitium consists of violet-brown flexuose threads. The spores are violet-brown, minutely spinulose, 8-9*5 /x diam. ; they have not attained their full depth of colour, and adhere when making a glycerine-jelly preparation in consequence of the growth not having been quite mature. Rostafiuski gives Diderma cunviniium as a synonym for Chondrioderma fiuriforme, from which it is distinguished by the spores. A specimen from Maine (Kew Collection, 375), marked Chondrioderma conciimuui, and quoted in Massee's Momu/raph, p. 308, as " Phi/sarum concinnum,'" is a pale form of lladhamia lilacina with characteristic capillitium and spores, and is referred to in B. M. Cat. Myc. 35. I had inadvertently taken this specimen as a type oi L>iderni a concimnuiiB. & C, and had neglected until after the publication of my monograph to make a careful examination of the original type of the latter. The name " Phijsarum concinnum B. & C." has been given by Mr. Morgan, of Ohio, to a species of which I have received a specimen. It is quite clistinct from either of the two specimens in the Kew Collection referred to, and, judging from the small example NOTES ON SOME EARE SPECIES OF MYCETOZOA. 213 in hand, I place it as possibly a form of P. compressum A. & S., but the granules of lime in the sporangium-wall and lime-knots are large for that species. I make this explanation to correct my own mistake, and also on account of the confusion that has arisen with regard to the name. DiACH/EA suBSESsiLis Peck. This beautiful species was found on dead bramble-leaves and stems in Flitwick Wood, Beds, on Sept. 8th, 189G. Tlie sporangia are about 0-5 mm. diam., subglobose and with an iridescent lustre, either provided with a conical white stalk or sessile, or of plasmodiocarp form. The columella is shortly conical or obsolete. The capillitium consists of a network of violet-brown threads radiating from the columella. The spores have a greenish colour, occasioned by the yellow contents appearing through the pale purplish spore-wall, which is beset with minute spines arranged in a reticulate pattern, as described by Dr. Uex (B. 3/. Cat. Mijc. 92). Some groups of sporangia are entirely destitute of lime, and in this case they are either sessile or have a short black stalk, the columella being reduced to a yellowish membranous tube. The limeless form agrees in all respects, including the sculpture of the spores, with a specimen of Lawproderwa Fuckelianum Kost. var. cracowense Racib. kindly submitted for inspection by Dr. Celakovsky, of Prague. It has a striking bearing on the species named by Dr. Sturgis Coma- tricha ccespitosa, a form without lime, which I suggested might be a variety of Diaclimt T/inmasii (1. c. 92), though the constancy of the long, membranous columella in repeated gatherings makes it pro- bable that it is a distinct species. There is a near relationship between />. Tlwmasii and D. suhsessilis, and, judging from the few gatherings that have been obtained, the difference consists in the orange-coloured stalks and clustered grouping of the papillae on the spores (under high magnification) of the former, as compared with the white stalks, densely charged with white lime-granules, and the reticulate arrangement of the papilhe on the spores of the latter. The peculiar greenish colour of the spores is confined, as far as my observation extends, to D. suhsessilis Peck, D. Thomasii Rex, and Coiiiatriclut ca;spitos(( Sturgis. A specimen of the Flitwick gathering has been submitted to Dr. Sturgis for comparison with the American type of D. subsi'ssilis Peck. He considers it identical with the latter species, but has been unable to procure an example of the type, which appears to represent a single gathering, and is now placed in the New York Museum. DiDYMiuM DUBiuM Rost. has been abundant this winter in the locality where it was first found at Lyme Regis in April, 1888. I obtained it from near Lyndhurst, New Forest, in Oct. 189(3, and at Witley, Sui-rey, in the same month. Through tlie courtesy of Dr. Celakovsky, juu., I possess part of the original type gathered by Opiz at Hauenstein in 18BG. It confirms my opinion that our English gatherings belong to the same species ; some of these exhibit similar capillitiums and spores, though we find a con- siderable range of variation ; the capillitium is usually more rigid and the spores paler than in the type. 214 NOTES ON SOME RARE SPECIES OF MYCETOZOA. D. EFFusuM var. tenue, n. var. Sporangia sessile, annular, orbicular- depressed, or elongated plasmodiocarps with a central depression ; grey, or glossy brown from the absence of lime. There is often a well-defined line of dehiscence round the upper margin of the sporangium-wall. The sporangium-wall is sparingly beset with minute lime-crystals, or naked. Columella none. Capillitium of slender, flexuose, violet-brown threads of equal thickness, but beaded with dark prominences here and there. Spores minutely spinulose, palish purple-brown, 7-8 /j. diam. This form has appeared in extreme abundance among dead sycamore and Spanish chestnut leaves in Wanstead Park, Essex, during last autumn. It is constant in its characters, and I first gathered it in the same locality in April, 1888; the crystals are always scanty, and the capillitium coloured. Considering the wide divergence, in the Wanstead Park gatherings, from the usual type of Diihjmium rjf'aswn, and the absence there of intermediate forms, they would appear to claim specific rank ; but bearing in mind the great variety exhibited by D. eff'usum in sporangia derived from Plas- modia of a common origin, and the near approach of some of the effused forms to the one under consideration, it appears better, for the present at least, to record it as a variety of that species. I propose the varietal name of tenue on account of the constant slender form of the plasmodiocarps. CoMATRicHA LURiDA Lister. This species has been abundant during last winter in the locality where it was first discovered at Lyme Kegis in 1890, and where it has been gathered almost every year since that date. It has also been met with sparingly in other parts of the district. It was found in large quantities on dead leaves under hollies at Witley, Surrey, in Oct. 1896, and Mr. E. S. Salmon collected it on dead leaves at Reigate in Jan. 1897. The species is well-marked and constant in its characters, and though difficult to recognize at first from its similarity to sporangia of Lawprodenna iridenm which have lost their iridescent walls, and with which common species it is often accompanied, it is un- mistakable as a mounted object. I know of no other record of its collection beyond those above mentioned. C. RUBENS Lister. In addition to the stations mentioned [B. M. Cat. Myc. 123), this species has been found in Eppiug Forest, and also at Witley, Surrey, and was unusually common at Lyme Regis in the winter of 1896-7. Like the species last referred to, it is strikingly constant in all its characters, but, from its minute size and close similarity in colour to the dead leaves on which the sporangia are found, it is easily overlooked. The persistent basal portion of the sporangium-wall appears to be an invariable feature, and renders the position of the species in the genus Coinatricha, rather than in the genus Lamprodenna, a somewhat doubtful one. C. TYPHoiDEs var. y. MicROspoRA Lister. A large gathering of this form was obtained on dead sycamore, oak, and bramble leaves, under brambles on the margin of the woods in Wanstead Park, Essex, in Nov. 1896. It is precisely the same form as that from NOTES ON SOME RAKE SPECIES OF MYCETOZOA. 215 Lyme Regis referred to in B. M. Cat. Mijc. 121, with faintly reticu- lated spores 4 [x diam. Tiie latter specimen was found on larch- bark lying on a thick bed of larch-needles. In both of these gatherings the surface branches of the capillitium are elegantly looped throughout, without free ends. They difi'er in this respect from (.'. typhoides var. a, which always has free ends in the upper part of the sporangium, and usually over the whole surface. If it were not that, in addition to the faint reticulation on the spores, the warts can be detected to which Dr. Rex drew attention as characterizing the species C. ti/phoides, and also from the fact that intermediate American forms appear to unite all the varieties of Comatricha in which these curiously-warted spores are present, the var. rnicroscopica would seem entitled to stand as a distinct species. A gathering of this variety from Berlin is represented in the British Museum by specimen 638, Sydow Myc. Marth 1866. It was issued under the name of Stemonitisferruginea. C. Persoonh var. fusca, n. var. Throughout last autumn C. Persoonii has been common in Epping Forest and Wanstead Park. It was mostly of the typical form with gregarious sporangia containing the usual pale lilac-brown spores. In Wanstead Park, however, a large growth came up on dead leaves under brambles, of more crowded erect sporangia, recognizable at a glance from the ordinary form as taller and more rigid in appearance. The capil- litium is dense ; the spores dark and similar to those of C. laxa, from some forms of which with dense capillitium it is not easily distinguished when individual sporangia are compared. Specimens in the British Museum from Broome's collection had caused me perplexity until I recognized them as being the same species as the Wanstead form of C. Persoonii, which retained its distinctive characters in continuous growths through Sept., Oct., and on to Nov. 5th. The habitat on dead leaves, and the somewhat rufous colour of the sporangia in the field, distinguish it from C. laxn, which is found on sticks and logs ; and it so nearly resembles some forms of typical C. Ptrsonnii that the only diagnostic feature is the dark spores. As, however, it is represented by several speci- mens in the Brit. Mus. Collection, and appears to be constant in its characters, it may be useful to mark it by the varietal name of fusca, in allusion to the colour of the spores. SiPHOPTYCHTUM Casparyi Rost. I havc received a fine and typical specimen of this species from Mr. Robert E. Fries, of Upsala, who gathered it last year in Wermland, Sweden. I know of no previous record of its occurrence in Europe. , LicEA flexuosa Pcrs. was found in great abundance on chips about the stumps of felled Scotch firs near Witley, Surrey, in November, 1896, and February, 1897. Tkichia contorta var. lutescens. In the description of this variety in P. M. ('i(t. Mi/c. 169, founded on my gatherings in Norway in 1894, I stated that if further specimens should be obtained confirming the constancy of the characters, it should be made a distinct species. Dr. Nyman has sent mo a sjjecimen 216 NOTES ON SOME RARE SPECIES OF MYCETOZOA. collected by Miss A. Cleve at Njammets, Lapponia Luleusis, Sweden, Sept. 9tb, 1896. 'The sporangia are globose and sessile, agreeing in all respects with the above, except that the spores have a more olivaceous colour. As in the former gathering, the sporangium-wall consists of a yellow membrane, entirely free from granular deposits, and so delicate as to be embossed with the impression of the spores beneath. The elaters measure 4 /x in thickness, and have regular but faint spiral bands ; the tips taper gradually, or end in a short point beyond a bulbous swelling. The spores are nearly smooth, 11 /x diam. There appears to be sufficient evidence to establish the integrity of the species, and I should give it the name of Trichia lutescens. T. BoTRYTis var. munda, n.var. This variety is distinguished from var. a. by its usually smaller size, by the almost invariably mottled sporangium-'wall, by the habitat being on dead leaves of oak, hornbeam, &c., rarely on wood; but especially by the smooth, neat elaters having about four bands which are perfectly regular and close in their spiral arrangement, and do not project above the intermediate spaces. The elaters are pale brown in colour, 3'5 /x in thickness, with moderately long tapering points. The character of the spiral bands is a constant one, as evidenced by gatherings by Prof. I. Bayley Balfour at Moffat about the year 1879; by Mr. J. Saunders at Pepperstock, Beds, in Oct. 189i ; and by ourselves in the Black Forest near Freiburg, repeatedly in the neighbourhood of Lyme Regis, and abundantly in Epping Forest. Although a dis- tinct variety, the spores are similar to those of var. «, and it resembles that form so nearly in other characters that it cannot be called a distinct species. The varietal name of munda is given on account of the neat elaters. Hemitrichia intorta, var. leiotricha Lister, has been found in Wanstead Park and Epping Forest during last autumn. In one locality eighty-one sporangia were collected on dead leaves under brambles on a space little more than a foot wide. Considering the scattered habit of the species, this was a large gathering. Arcvria ferruginea Saut. This species is subject to much variation both in the colour of the sporangia and in the surface thickenings of the capillitium, but the large spores, about 9 /x diam., distinguish all forms of this and the doubtfully distinct Californiau species A. versicolor from other members of the genus. The differences noticed in the capillitium-threads consist in the varied arrangement of spines, bauds, and reticulations, and in the presence or absence of free ends. Several species have been created from time to time based on these characters. The specimen named Hf'terotrichiii GabrieUcB Mass., from S. Carolina, in the Kew Col- lection, has been especially noted as distinct from A. ferruginea by the numerous free ends projecting from the network of the capillitium, but in some sporangia of that specimen I can find no free ends. ^./tr/'U^mca was unusually abundant last autumn in many localities. In my garden at Leytonstone a growth came up in November on a decaying trunk of Scotch fir, extending for NOTES ON SOME RARE SPECIES OF MYCETOZOA. 217 several feet in length and some inches in breadth. The plasmodium was in part of the usual rosy red colour, but a large proportion was creamy white, shading into red. The sporangia that matured from the cream-coloured plasmodium ranged from yellow to orange and ferruginous, and those from the rosy plasmodium showed the same difference in tint. In some sporangia the capillitium had numerous free ends, similar in shape and reticulation to those in the type of H. Gabriellcc ; in others none could be detected. The sculpture of the capillitium varied in sporangia taken from different parts of the growth in the presence or absence of spines and transverse bars, and in the character of the reticulation. Such diversity in sporangia, undoubtedly arising from a common origin, confirms the view that the presence or absence of free ends and the surface sculpture of the threads are unreliable characters on which to found specific distinctions. The capillitium of a gathering in Epping Forest in Nov. 1896 is terete in section, beset with spines and reticulations, but without transverse bars ; it nearly approaches Rostafiuski's type of A. dictyonema in character, yet the size of the spores and the pattern on the cup of the sporangium-wall leave no doubt that it is a form of A. ferruginea. A. STiPATA Lister. At the time of the publication of the B. M. Cat. Mijc. this species had only been recorded from America, with the exception of two specimens in the Kew Collection, one from Ceylon and the other from Nepal. Further examination of a specimen from " Merimasku, Finland, Karsten Fung. Fin. No. 378," named Arcyria punieea in the Kew Collection, proves it to be A. stipata. It was evidently mixed with other gatherings, as Karsten's specimen in the Brit. Mus. Collection, under the same name and number, is A. punieea. I have now received a fine example from Mr. E. S. Salmon, gathered at Margery Hall, near Reigate, on Dec. 11th, 189G, by Mr. W. F. Taylor. It is a larger form, with longer stalks than any I have seen from America, but the spiral lines on the capillitium are unusually distinct. It is interesting to be able to add this to the list of British species. DiANEMA Harveyi Rbx. This species was gathered in Dec. 1895, on a decayed stem of Clematis vitalba, also in Jan. and March, 1897 on ash-sticks, in an ivy-covered dell near Lyme Regis, where it was discovered in Feb. 1894, and referred to in B.]\[. Cat. Mi/c 204. Mr. Harvey states {IJidl. Torrei/ Hot. Club, xxiii. No. 8, 307) that he has not met with the species since the original gathering was obtained on decorticated poplar near Orono, Me., in Sept. 1889, though searched for carefully. Lycogala flavo-fuscum Rost. In Sept. 1895, Mr. C. Crouch, of Kitchen End, near Ampthill, Beds, observed a frothy white plas- modium at the base of a decaying elm, and watched it almost daily for a fortnight, when it had matured to a grey, pulvinate tBthalium about an inch and a quarter in diameter. The cortex, capillitium, and spores arc typical of L, jlavo-fusvum. The colour of the plas- modium has not, I believe, been previously noted. On Oct. 4th, 1896, two aHhalia about an inch and a half long, and depending 218 DECADES PLANTARUM NOVARUM AUSTKO-AFEICANARUM. from a yellowish liypothalliis, were gathered from the trunk of a dead beech iu the New Forest, seven or eight feet from the ground; they are more brown in colour than the Ampthill specimen, but they had evidently been mature for a considerable time. The species appears to be rare. DECADES PLANTARUM NOVARUM AUSTRO- AFRIGANARUM. AUCTORE R. SCHLECHTER. (Coutinuecl from vol. xxxiv. p. 504.) DEGAS in. 21. Muraltia exilis, sp. n. Herba gracillima, erecta, glabra, e basi parum ramosa, 15-30 cm. alta ; ramis erectis vel adscendenti- bus filiformibus, pro genere distauter foliatis ; foliis erectis, lineari- filiformibus, acutissimis, glabris, vel microscopice margine ciliatis, dorso nervo medio incrassato subcarinatis, 1-1-7 cm. longis ; floribus in axillis foliorum superiorum sessilibus, singulis, albidis ; calycis foliolis erectis, fequahbus lanceolatis acutissimis, petala subexce- dentibus, margine tenuiter ciliatis, O-i cm. longis ; petalis erectis ad dimidium usque agglutiuatis, oblique ligulatis obtusis, margine tenuiter ciliatis mtus medio fere subbarbatis, vix 0-4 cm. longis ; carina petala excedente, ungue lineari, lamina cucullata obtusissima intas glabra, basi obtusa (exauriculata), appendicibus petaloideis complicatis obcordatis, basi cuneatis, margiuibus integris, 1-5 mm. longis ; capsula subelliptica, more generis compressa, glaberrima, calyci longitudine fequa, cornubns apice subdeltoideis glabris, capsula 3-1-plo bi-evioribus ; seminibus oblongis, pilis detlexis tenuiter hispidulis. Habitat in regione austro occideutali : In humidis juxta rivulum " Silvermiue River" in planitie mentis Steenberg prope Muizen- berg, alt. c. 1500 ped., Jul. 1896. Leg. Ccqjt. Wollei/ Dod. From M.Jillfuniiis Thbg. our plant is distinguished by its much more slender habit, the sepals, much smaller flowers, and a very distinct fruit, quite unlike any other in the genus. The colovxr of the flowers is pale pink, almost white, with a purplish carina. 22. Coelidium humile, sp, u. Fruticulus erectus, humilis, ramosissimus ; ramis ramulisque sericeo-hirtis villosisve dense foliatis ; foliis erectis lineari-lanceolatis vel lineari-oblongis, acu- minatis, concavis, extus cano-sericeis, 0-3-O-4 cm. longis; floribus roseis ad apices ramulorum capitatis sessilibus ; bracteis minutis, quam calyce duplo vel subduplo brevioribus oblongis ovatis, dense sericeis ; calyce 0-4 cm. longo, sericeo ; apicibus liberis sub- aequalibus, brevibus, suborbicularibus obtusis, intus puberulis ; vexillo e basi graciliter unguiculato in laminam suborbicularem apice escisam, utrinque glabram, Q-G cm. latam dilatato; alis vexillo vix brevioribus ungue gracili, lamina oblique oblonga DECADES PLANTARUM NOVARUM AUSTRO-Ai'RICANARUM. 219 obtusa, ulrinqne glabra, 0-6 cm. longis ; carina alis subasquilougis obtusa gbibra ; stylo subulato glabro, ovario ovoideo puberulo. Habitat in regioue austro-occideutali : In clivis lapidosis in siimmo monte "Matroosberg," alt. c. 6500 ped., Dec. 1895; Dr. li. Marloth, No. 2200. This very interesting little novelty stands in the character of its flowers nearest to C. muraltiuides Bth., but is easily distinguished by its much shorter habit, smaller flowers in few-flowered capitulum, and very different bracts. Flowers purple, with a darker carina. 23. Dolichos reticulata, sp.n. Herbaperennis, decumbens e basi ramosa ; ramis plus minusve elongatis, filiformibus, teretibus, pilis reflexis bifariam villosis ; stipulis oblongis obtusis, vel sub- obtusis, basi semisagittatis, marginibus ciliatis ; foliis trifoliolatis, petiolatis, petiolo 1 •7-2-5 cm. lougo, gracili pilosulo, nunc sub- glabro, foliolis sub^equimagnis, lateralibus oblique ovatis obtusiuscu- lis vel acutiusculis, reticulato-nervosis, marginibus ciliatis exceptis utriuque glabris, foliolo intermedio paulo producto ovato-oblongo acutiusculo, 2-2-5 cm. longo, medio fere 0-8-l'3 cm. lato ; peduncnlis elongatis filiformibus, axillaribus, sparsim pilosis, folia excedentibus, plerumque unifloris, rarius bifloris ; calycis 0-5 cm. longi segmentis subfequalibus ovato-lanceolatis subacutis, margine tenuissime ciliatis, tubo subfequilongis ; vexillo breviter unguiculato, suborbiculari obtusissimo, c. 1 cm. longo, intus squamulis 2, falcato-oblongis obtusis basi donate, utrinque glabro ; alis graciliter unguiculatis, lamina rhomboideo-obovata obtusissima, basi auriculata, 6 cm. longis, lamina infra apicem 0-5 cm. lata ; carina cucullata obtusa alis fere tequilonga ; ovario glabro, fiisi- formi ; stylo subulato incurvo, dimidio superiore intus longitudi- naliter barbato ; siliqua gracili recta, apice subhamato incurva, c. 5 cm. louga, c. 0-3 cm. longa. Habitat in regioue austro-orientali : In saxosis montium Drakens- bergen prope Polela (Natahfe), alt. 6000-7000 ped., Febr. 1876. Leg. M. S. Kvans, No. 630. By its habit, the stipules, and the inflorescence well distinguished from the other South African species. Mr. Evans describes the flowers as being "rose-coloured." 2-1. Felicia bellidioides, sp. n. Herba perennis acaulis ; foliis ad apicem rhizomatis repentis rosulatis pluribus, oblanceo- latis vel obovato-spatulatis obtusiusculis, in petiolum angastatis, pilis albidis sericeo-villosis, exsiccatione submembranaceis, 1-5- 2-5 cm. longis, supra medium 0*5-0-8 cm. latis ; scapo gracili erecto, simplici, undo, pilosulo, 10-20 cm. alto ; capitulo erecto, c. 1-3 cm. diametientc; involucri foliolis uniseriatis liuearibus acutis puberulis c. 18, floribus radii brevioribus, 0-6-0-7 cm. longis ; floribus radii 15-20 cteruleis, lineari-ligulatis obtusis ; floribus disci tubulosis, autheris baud exsertis ; acheniis compressis, ob- ovoideis sparsim strigosis ; pappi setis (in acheniis maturis flores disci subexcedentibns), strigoso-asperis, niveis. Habitat in regioue austro-occidentali : In cacumine moutis 220 DECADKS PLANTAEUM NOVAEUM AUSTRO-AFRICANAKUM. Matroosberg, in saxosis, alfc. 7300 pecL, Dec. 1895 ; Dr. 7?. Marloth, No. 2267. The characters of the habit bring this plant nearer to F. natal- ensis Schltr. (Aster natalensis Harv.) and F. Imjulata Klatt, both inhabitants of the south-eastern region. From the former it is well distinguished by the leaves and the flower-heads ; the latter has filiform leaves and white flowers. In habit the plant resembles some species of Bellis. The ray-flowers are blue ; the disc yellow. 25. Dimorphotheca spectabilis, sp. n. Herba perennis simplex vel e basi parum ramosa, erecta, 30-45 cm. alta ; caule stricto vel subflexuoso exsiccatione striato, foliato, apicem versus in pedunculum scabrido-puberulum denudato tenuissime scabrido, demum glabrescente ; foliis erectis lanceolato-elhpticis vel lineari- lanceolatis acutis vel subacutis, integris, scabridiusculis, 3-5-5 cm. longis, medio fere 0-7-1 cm. latis ; capitulo in genere inter majores ; involucro 20-25-foliolato, foliolis lineari-lanceolatis acutis dorso scabrido-glandulosis, disco a-quilongis, 1-2-1-4 cm. longis; floribus radii speciose purpureis ligulatis apice breviter 3-dentatis, 4-nervis, 4-lineatis, involucro daplo longioribus basin versus extus hispidis ; floribus disci alte tubulosis, extus sparsim hispidulis, 0-7 cm. lougis, lobis erectis ovato-deltoideis subacutis ; antheris exsertis, filamentis glabris fequilongis ; stylo subfiliformi in tubo antherarum omnino incluso ; acheniis radii anguste 3-alatis, acheniis disci sub- orbicularibus, apice breviter truncatis, 1-3 cm. diametientibus, alls crassiusculis. Habitat in regione austro-orientali : In collibus graminosis prope Barberton, alt. 4000-4500 ped., Sept., Oct. 1887; E. E. Galpin, No. 555. The most beautiful species of the genus, with bright purple rays and brown disc. Distinguished from IK Barberim Harv. by the uniform rays and the achenes. D. Barberict has also smaller heads, and is a much weaker-growing plant, 26. Phyllopodium glutinosum, sp. u. SuflVutex spithamaeus ramosus, glutinoso-puberulus ; ramulis teretibus foliatis ; foliis inferioribus oppositis, superioribus alternantibus e basi cuneato- angustata circuitu obovatis, acutis, margine parum grosse dentatis, 1-1-7 cm. longis, supra medium 0-4-07 cm. latis ; spicis cylin- dricis dense multifloris, elongatis ; bracteis foliaceis linearibus pedicello adnatis nunc integris nunc 1-2 dentatis, obtusiusculis calycem paulo excedentibus a^quantibusve, utrinque glutinoso- velutiuis ; calyce subvelutino 0-3 cm. longo, alte 5-fido, segmentis subciequalibus lineari-subulatis ; corolla calycem plus duplo exce- dente, glabra, tubo 06 cm. longo, e basi cylindrica fauce versus paulo dilatato, lobis patentibus rotundatis, superioribus inferioribus paulo majoribus ; filamentis filiformibus glabris, antheris oblongis parvulis, brevioribus, corolla tubum fequautibus, superioribus paulo excedentibus ; stylo filiformi glabro, stamina longiora paulo su- perante ; capsula ovoideo-oblonga obtusiuscula glabra, calycem post anthesin paulo ampliatam requante. Habitat in regione austro-occidentali : In saxosis in summo DECADES PLANTARUM NOVARUM AUSTRO-AFRICANARUM. 221 monte Matroosberg, alt. c. 6000 ped., Dec. 1892; Dr. R. Marlcth, No. 2216. Somewhat resembling P. cunei/uUum Bth. from the south-eastern region, but well distinguished by the indumentum, the leaves, and larger flowers with a proportionately longer tube. I have not seen this rare plant in any other collection. 27. Zaluzianskya crocea, sp. n. Herba perennis, humilis, 5-8 cm. alta, basi parum ramosa ; foliis patentibus vel erecto- patentibus, textura crassiore, inferioribus obovatis subacutis vel obtusis petiolatis, parum dentatis, nunc subintegris, usque ad 2 cm. longis, supra medium usque ad 0'7 cm. latis, superioribus sensim angustioribus sessilibus, plus minusve albido-pilosis, in bracteas decrescentibus; spicis cylindricis, vel ovoideis, densiusculis; floribus croceis subcorymbosis ; bracteis foliaceis calycem vel fructum exce- dentibus ; calyce alte bilabiato, villoso, labiis squilongis, inferiore breviter exciso, superiore tridentato, 0*7 cm. longo ; corollae tubo tenuissimo subfiliformi-cylindrico, puberulo, faucibus vix ampliatis, c. 3 cm. longo, 0-1 cm. diametiente, segmentis divaricatis, alte emarginatis, croceis, lobulis rotundatis, faucibus pilosis; stylo fili- formi, corolhe tubum paulo excedente ; filamentis tenuissimis, glabris ; ovario glabro ; capsula oblonga, calyci asquilonga. Habitat in regione austro-orientali : In monte Andriesberg, prope Queenstown, alt. 6350 ped.. Mart. 1895 ; E. E. Galpin, No. 1927. In general appearance this species somewhat resembles Z. sela- (j'mea Walp., but the pubescent corolla-tube, the leaves, and the fruits distinguish it well. The tube of the flowers and the lower surface of the lobes are whitish ; the upper surface of the latter is bright orange, a colour not found before in the flowers of this interesting genus. 28. Stachys simplex, sp. n. Herba perennis, simplex erecta, 20-40 cm. alta ; caule angulato stricta, dense villoso, dimidio inferiore deusius medio laxe foliato ; foliis ovato-oblongis vel lanceolato-oblongis obtusis vel subacutis, margiue grosse dentatis, basi in petiolum brevem angustatis vel subsessilibus utrinque velu- tinis, 2-5 cm. longis, 1-1-5 cm. latis, superioribus sensim minoribus, floralibus abbreviatis, calyces vix excedentibus ; spica sublaxa, cylindrica, elongata, usque ad 15 cm. longa, vix 2 cm. diametiente; verticillis 5-7-floris ; floribus niveis breviter pedicellatis, illis S. ar- vensis L. subajquimagnis; calyce villoso, tubo segmentis vix longiore, segmentis deltoidis pungenti-mucronatis, corolla} tubo brevioribus ; corolla extus villosa, calycem duplo excedente, tubo cylindrico, c. 0*6 cm. longo, c. 0*2 cm. diametro, labio superiore concavo obtuso, intus glabro labio inferiori duplo fere breviore, labio inferiore 0-6 cm. longo, trilobato, lobis latcralibus minutis, intermedio sub- quadrato, obtusato; filamentis filiformibus glabris, autheris minutis oblongis, longioribus 2 apicem labii superioris vix attiugentibus ; stylo tiliformi glabro, labium superiorem excedente. Habitat in regione austro-orientali : In graminosis montium " Saddleback-Mountains," prope Barberton (Transvaali;i3),alt. 4000- 5000 ped., Novembr. 1890 ; E. E. Galpiv, No. 1006. 222 DECADES PLANTARUM NOVARUM AUSTRO-AFRICANARUM. Distinguished from S. nigricans Bth. by the indumentum, the leaves shorter, villous flowers, and shorter growth. The flowers are white. 29. Thesium Galpinii, sp.n. Frutex erectus (fide coUectoris), 8-pedalis, laxus, ramosus, ramis gracilibus illis T. amjulusi A. DC. tenuioribus, angulatis, subaphyllis ; foliis depauperatis, squanife- formibus valde dissitis, lanceolatis acutis glabris, erectis; floribus plerumque laxe spicatis, interdum subpaniculatis ; bracteis line- aribus acutis foliaceis, flore brevioribus, bracteolis 2 minutis ad apicem pedicelli brevis ; perianthio alte 5-fido, segmentis lanceo- latis extus glabris, intus margine subincurvo ciliatis, apice sub- uncinato-incurvo velutinis, intus medio fascicule pilorum ad antheras tendente pra^ditis, 0*5 cm. longis ; staminibus ad basin loborum insertis, filamentis subulatis antheras longitudine a^quantibus, an- theris perigonio brevioribus ; stylo subulato antherarum apicem vix attingente, stigmate simplici truneato ; nuce ovoideo c. O-o cm. longa, lineis 10 longitudiualiter ornata, quarum 5 bene conspicuis, 5 basi nucis tantum visis, perigonio deflorato nuci vix fequilongo, stipite carnosiusculo corallino. Habitat in regione austro-orientali : In cacumine montium prope Queenstown, alt. 4500 ped., Nov. 1893 ; E. E. Galpin, No. 1654. A very distinct species, somewhat resembling T. anffulosum A. DC, but with a different habit and a different style. The best mark of the species lies in the coral-red stipes of the ripe fruit, which I have never noticed before in any other South African species. Mr. Galpin writes that it is a shrub 8 ft. high ; that is to say, it would be amongst the tallest of the genus. -SO. Watsonia gladioloides, sp.n. Foliis radicalibus pluribus ensiformibus, more specierum nonnullarum Gladioli basi obliquis, nervosis, cartilagineo-marginatis, 40-50 cm. longis, medio fere l-3-l"8 cm. latis ; scapo stricto, valido, vaginis acutissimis, sen- sim in bracteas decrescentibus laxe vestito, folia excedente ; spica subsecunda elongata, pro genere subdensa ; spathis siccis erectis, exterioribus ovato-lanceolatis valde acutis, 3-3-5 cm. longis, interi- oribus apice breviter bifidis exterioribus paulo brevioribus ; perianthio purpureo, c. 7 cm. longo, tubo arcuato e basi constricta dimidio superiore subcylindrico, c. 0*4 cm. diametiente, lobis erecto- patentibus, lanceolatis vel oblongo-lanceolatis acutis, c. 1*5 cm. longis, medio fere 0*4-0-5 cm. latis, lobo infimo deflexo vel patulo ; staminibus perianthii tubum excedentibus, filamentis filiformibus glabris, antheris linearibus multo longioribus ; stylo filiformi glabro ; antheras excedente, brachiis c. 0-0 cm. longis, dimidio fere bifidis. Habitat in regione austro-orientali : In clivis montis "Hanglip Mtn.," Jan. 1894 ; E. E. Galpin, No. 1784. A remarkable plant, with the tube of AntJioh/ia nervosa rather, but the style-branches and stamens of IVatsonia, with which it aerrees too in habit. 223 REMAEKS ON PAEATROPHIS HETEROPHYLLA Bl. By T. Kirk, F.L.S. New Zealand botanists have doubtless felt cousiderable un- certainty as to the specific identity of certain plants included rightly or wrongly under Kpicarpnrns )iiicrojihijlliis Raoul, the "turepo" of the Maoris, and the "milk tree" of the settlers. Certainly any ordinary observer examining Raoul's beautiful drawing and com- paring it with the fine plate of Trophis opaca in the Banksian collection, would unhesitatingly conclude that two entirely difi:'erent plants were represented by the artists, and for some time past I have been of the same opinion ; but the examination of a large number of specimens from various localities has compelled me to believe that we have only a single species which exhibits an ex- ceptional range of variation, so that it is necessary to point out the characteristics of the extreme forms. Pakatrophis HETEROPHYLLA Bl. Mus. Bot. Lugd.-Bat. ii. 81. Epicarpunis microphyllus Raoul, Ann. Sc. Nat. ser. 3, ii. (1844), 117 ; Choix de PI. de la Nouv. Zel. 14, t. 9 ; Hook. f. Handbk. N. Z. Fl. 251. Taxotrophis microphyUa F. Muell. Fragm. Phyt. Austr. 6, 193. North and South Islands : — Mongonui to Foveaux Strait ; Great Barrier Island. In the young state the typical form has slender, flexuous, often tortuous twigs with brown bark, pubescent or even setose at the tips, and very brittle ; the leaves are distant, membranous, green, \-\ in. long, shortly petioled, varying from obovate to obovate-orbicular, cuneate at base, entire or deeply lobed below, or even pinnatifid, acute, sharply toothed; stipules ovate-subulate, caducous. In this state the plant forms a bush or shrub 3-8 in. high, which bears but a slight resemblance to the mature condition, and rarely produces flowers. Gradually the leaves become coriaceous, the bark changes to a grey colour, sometimes almost white ; the leaves become obtuse or even retuse, their margins crenate or crenate-dentate, while the lobation is less prominent and often disappears ; the obovate outline may be retained, or pass gradually into obovate-elliptic or elliptic- ovate ; the length may vary from \ in. or less to Ih in. In this state the plant may range from a shrub or bush to a small tree 40 ft. high or more, with a trunk not exceeding 24 in. in diameter, and pale grey or whitish bark. Flowers are produced freely, the male forming axillary or rarely terminal amenta, ^{-1 in. long, , the flowers mixed with curious peltate scales having scarious white margins. Perianth deeply 4-partite, lobes rounded, ciliate ; stamens 4, exserted. Female flowers in short erect 3-G-floworcd spikes ; flowers distant ; perianth deeply 4-partite, the outer segments smaller than the inner; stigma bifid, both arms filiform, and stigmati- ferous for their entire length; ovary 1-celled, 1-ovuled. Fruit as large as a peppercorn, 1-seeded, red, spherical, tipped with the short straight style. The slender rachis becomes pendulous as the 224 BEMARKa ON PARATROPHIS HETEROPHYLLA EL. fruit ripens ; and it is remarkable that the fruits are almost in- variably solitary, although the spikes are 3-6-flowered. Var. elUptica = Trophis opaca Banks & Sol. MSS. et Ic. ; Hook. f. Fl. N. Z. i. 224. North Island : — Mongonui to Cook Strait ; Taranga Islands ; Stephen Island. Chiefly in places near the sea. The Banksian plate exhibits the male and female spikes, mostly arranged in threes, springing from a terminal peduncle. I have no specimen exhibiting this peculiarity. Var. elliptica is erect from a very early state, and does not appear to pass through the remarkable stages of development described above ; it may be, however, that more extended observa- tion might render it necessary to modify this statement, but I have seen no indication of such change. The twigs are straight, erect, with brown bark ; the leaves are erect and rather close- set from the first, oblong or elliptic-oblong, acute, subacute or obtuse, margins crenate or crenate-dentate, coriaceous, 1-3^ in. long, ^-1 in. broad, slightly narrowed at both ends, but not obovate. Both male amenta and female spikes are often geminate, although usually solitary, and are larger than those of the type, sometimes Ih in. long or more. The drupes, however, are numerous, the size of small peas, and being produced in great profusion resemble at a short distance racemes of red currants, the resemblance being increased by the slender rachis being invariably pendulous. It seems not unlikely that the greater number of j)erfect fruits on a spike in this variety may be due to the spikes being usually developed on the naked portions of the branchlets, and thus being more readily fertilized than when hidden amongst the leaves, and it is not impossible that the more robust habit of this plant may be indirectly connected with the same characteristic. Notwithstanding the very different aspect presented by the ex- treme forms, a gentle gradation may be traced from the small membranous lobulate or pinnatifid leaves of the early stage of the type to the large elliptical entire leaves of var. elliptica, but it is not easy to find intermediate stages amongst the drupes. Female flowers appear continuously through the season, espe- cially in var. elliptica, in which they are developed to the end of February. In this form the unfertilized stigmas often remain on the rachis until the drupes are nearly ripe. The wood is white, compact and rather hard, but perishable. I have to express my indebtedness to the Bishop of Waiapu, to Frank V. J. Williams, Esq., of Waipara, to A. Williams, Esq., of Taparoa, and other friends, for a copious supply of specimens from various localities ; also to the authorities of the British Museum for a precious fragment of the original specimen in the Banksian collection. The absence of any form of this plant from the Chatham Islands and Stewart Island is remarkable. 225 HOUSTOUN'S CENTRAL AMERICAN LEGUMINOS^. By James Britten, F.L.S., and E. G. Baker, F.L.S. Among the large nurabei* of species established in Miller's Gardeners' Dictionary (ed. 8, 1768), a considerable proportion are based upon specimens sent by Dr. William Houstoun from Vera Cruz, Campeachy, and Jamaica, or upon plants raised in Chelsea Garden from seeds forwarded by him. Many of these have been referred, often incorrectly, to other species subsequently described ; others have never been identified. The British Museum Herbarium, the historical value of which is becoming more and more recognized, affords material for clearing up the obscurity which surrounds these plants ; for it contains (1) Miller's own herbarium, in which were a large number of Houstoun's specimens, many of them having MS. names attached in Houstoun's hand ; (2) a large number of plants from Chelsea Garden sent by Miller to Sloane ; (3) many of Houstoun's specimens in Herb. Banks; Houstoun's MSS. (five books) and drawings, from which the ReliquicB HoiistouniancB was selected : the MSS. contain many full descriptions of species, and, as well as the specimens, were annotated by Dryander. It would thus be no difficult task to identify a large number of Miller's descriptions, especially as some one. (probably Dryander) has marked off in the Gardeners' Dictionary the species received from Miller. As was pointed out in this Journal many years back,* it is matter for regret that Mr. Herasley did not include the plants in the British Museum Herbarium in the Botany of the Bioloqia Centrali-Ameyicana. By so doing he would not only have largely added to the completeness of his enumeration, but he would have cleared up a number of doubtful plants, and so have secured the solution of a number of puzzles which at present remain unsolved in the Index Kewensis. Nor does it appear that he extracted all the Mexican plants from the Gardeners' Dictionary ; so that his handsome book, although a summary — we can hardly say a handy summary — of what was known at the time of its publication of the Central American flora, might have been rendered more complete biblio- graphically as well as botanically. Our attention having lately been called to two or three of Hous- toun's Leyionitiosce, it seemed to us that it might be useful to examine the remainder of the order, with a view to ascertaining what pro- portion of specimens upon which Miller founded his species existed in the Herbarium, and how far they were capable of identification. The outcome of our investigation seem worth putting on record, as it has resulted in the determination of plants which have until now remained obscure ; and the clearing up of obscurities is hardly less " ini2)ortant than the description of novelties. We give first give a tabular enumeration of the plants under Miller's names, with identifications : this is followed by notes upon ' Jvurn. Bot. 1880, p. 90. Journal, of Botany. — Vol. 35. [June, 1897.] 226 HOUSTOUN S CENTRAL AMERICAN LEGUMINOS^. the more interesting plants. A list of some Central American Legiituinoscc from Houstoim which are not mentioned by Miller and a note of the plates in Miller's Fii/ures of Plants based upon Hous- toun's material are appended, followed by a description of an apparently undescribed Bmihinia based on a Hoiistoun plant, and a note on a Jamaica species which may as well appear here. In the following list the sequence of the names as given in the JMctionar;! is followed ; this is succeeded by an identification and an indication of the locality as given in Herb. Banks, with a reference to the volume and page of Herb. Sloane, when tlie species is also present therein. Bauhinia tomentosa. See Note. Bauhinia ungulata. See Note. Bauhinia emai'ginata = B. aculeata L. ? Bauhinia purpurea = B. glabra Jacq. Bauhinia iotundata = B. aculeata L.? Cassia frutescens = C. Sophera var. ligustrinoides Bth Cassia villosa. lietained. Cassia uniflora = C. sericea Swartz. Cassia fruticosa = C. bacillaris L. Cassia emarginata = C. pilosa L. Cassia biflora = jEschynomene brasiliana DC. Cassia arborescens = C. emarginata L. Cassia flexuosa = C. serpens L. Cassia chama'crista. See Note. Cassia pentagonia. Retained. Cassia procunibens = C. hispidula Vahl. Colutea americana = Diphysa carthagineusis Jacq. Goronilla scandens = Chretocalyx pubescens DC. ? Crotalaria pilosa. See Note. Crotalaria sagittalis = C. pterocaula Desv.? Crotalaria fruticosa. See Note. Crotalaria angulata. See Note. Erythrina americana = E. carnea Ait. See Note. Galega frutescens = Indigofera mucronata Spr. Guilandina glabra. Retained (fide Grisebach). Hedysarum diphyllum = Zoruia diphylla. Hedysarum lourpureum = Meibomia tortuosa O. K. Hedysarum canescens = Meibomia incana Vail. Hedysarum sericeura = Meibomia cajanifolia O.K. Hedysarum villosum = Meibomia barbata O. K. Hedysarum procumbens = Meibomia spiralis O.K. Hedysarum intortum = Desmodium trigonum DC. Hedysarum glabrum = Meibomia glabra 0. K. Hedysarum scaudens = Galactia pendula I'ers. Hedysarum repens = Meibomia adscendens O. K. ? Hedysarum echastaphyllum = Ecastaphyllum Brownei Lathyrus americana = Khynchosia menispermoidea DC. Mimosa plena =Neptunia plena Benth. Mimosa pudica = Mimosa pudica L. Mimosa quadrivalvis = Schraulvia aculeata Willd. Mimosa sensitiva = M. albida H.B.K. Mimosa asperata. Retained. Mimosa cornigera = Acacia spadicigera Ch. & Schl. Mimosa Houstoniana = Calliandra Houstoni Benth. Mimosa lutea = Acacia macracantha H. & B. Mimosa glauca = Leucaena glauca Benth. Hh. Banks. Campeachy Campeachy fide Mill, Carthagena Vera Cruz Carthagena Jamaica Campeachy Campeachy Vera Cruz Jamaica Jamaica Vera Cruz Jamaica Vera Cruz Campeachy Vera Cruz Vera Cruz Carthagena No locality given No locality .Jamaica Campeachy fide Mill. Vera Cruz Vera Cruz Vera Cruz Vera Cruz Jamaica Vera Cruz Jamaica Jamaica Campeachy See Note Havannah ex Mill. No specimen Vera Cruz Vera Cruz Vera Cruz Vera Cruz ex Mill. Vera Cruz Vera Cruz Vera Cruz (Campea- chy ex Mill.) Vera Cruz Jamaica Vera Cruz HOUSTOUN S CENTRAL AMERICAN LEGUMINOSiE. 227 Mimosa angustissima = Acacia filicina Willd. [Schl Mimosa campeachiana = Acacia sphaerocephala Ch. & Mimosa cinerea = Piptadenia flava Benth. Ononis clecumbens = Ci-otalaiia inimila Oit. ? Orobus americanus = Tepbrosia cinerea Pers. Orobus argenteus — Tephrosia. See Note. Orobus procumbens = Tephrosia cinerea Pers. aff. Orobus coccineus = Indigofera leptosepala var. brevipes Poinciaua pulcherrima. [S. Wats Psoralea hirta. Psoralea scandens = Dalea enneaphylla Wilfd. Psoralea capitata. Psoralea annua = Dalea alopecuroides Nutt. Psoralea humilus = Dalea enneaphylla Willd. Eobinia rosea = Lonchocarpus roseus DC. Eobinia glabra = Dalbergia campeachiana Benth. Eobinia pyramidata - Ctesalpinia sp. Eobinia violacea = Peltophorum Linnaji Benth. Eobinia latifolia = Lonchocarpus violaceus. Spartium arborescens = Brya Ebenus DC. Hb. Banks. Vera Cruz Vera Cruz Carthageua Vera Cruz Jamaica Vera Cruz Vera Cruz Vera Cruz Jamaica No specimen No locality No specimen Not localized, Vera Cruz ex Mill. Vera Cruz Campeachy Campeachy Campeachy Jamaica & Vera Cruz Campeachy Jamaica Hh. Sloane. 293, ii. 4.S ; 140,1.5?^ 292, 37 292, (5:5 146, 42 292, 21 292, 6- 292, 64 316, 73 292, 65 324, 45 Crotal.^.ia pilosa. This plant was grown in Clielsea Garden from seeds sent from Vera Cruz by Houstoun. It is figm-ed by Martyn (Flist. PI. liar. t. 43), the plant from which the drawing was made being grown in Chelsea Garden from seeds sent by Robert Millar from Porto Belle. With this corresponds a specimen from Herb. Cliffort., labelled C. sajmrumpedunculerma sessilis Vauch. Hist. Conferv. 31, t. ii. f. 7 (1803). Crass, fil. veget. 69-75 /x; lat. oospor. 79 /x, altit. 90 /x. Golungo Alto. In I'ossis exsiccatis adhuc humidis in Varzea pone doin. Isidni ; Aug. and Sept. 1855. No. 132. Covers in Aug. and Sept. all the half-dried-up ditches of the plain. Var. MONOGYNA var. u. Viir. oogoniis semper solitariis, ovatis et leviter obliquis vel ovato-rostratis. Crass, fil. veget. 46-77 /x ; lat. oospor. 67-103 /x ; crass, membr. oospor. 4-8-5'8 /x. Golungo Alto. Ad margines stagnorum rivi Ciiango ; Aug. 1857, No. 155. XIII. — Hydrogastrace.e. 1. BoTRYDiuM Wallr. (1815). 1. B. GRANULATUM (L.) Grsv. Al. Pi. 1633. Ihjdrotjastruin (iranulatum Desv. Var. .EQuiNocTiALE, var. n. Var. minor, circiter tertia pars dimensionis planta' typicie ; plantis densissime aggregatis. Loanda. Non infret^ucns in territor. Loandensis terris humidis argillaceo-arenosis, latis plagas imo urbis ipsius plateas etc. ob- tegeus ; mox post pluvias copiosas nascens, citoque tempore sicco disparens. Ad fin. Apr. 1854. No. 199. 236 wklwitsch's afkican freshwater alg.e. Very little could be made out from the specimens which were on dried mud, but a rough sketch made by Welwitsch accompanying them was sufficiently characteristic of the genus. XIV. — -Palmellace^. 1. CcELASTRUM Nag. (1849). 1. C. ROBusTUM Hantzsch in Rabenh. Ah/. Europ. no. 1407; Keinsch in Abhandl. Xaturhist. Gesellsch. NurnberSpiciL Fl. Fenn. 2 (1843), was really earlier. But I cannot ascer- tain whether the SpicUe. 4, 300 (1805). Outer Hebrides (TF. .9. Duncan). Eichter calls this "serrulata Biv. Stirp. Futr. 4, 9 (1806)." Heuffler describes a var. alpina, but I have seen no specimens that could be referred to this plant from Britain ; our plant does not seem to ascend higher than 2100 ft. I believe that Mr. Druce first used the name C.jiacca var. stictocarpa in Journ. Lot. 1888, 368, so that my name as attached to it must be expunged. C. MAGELLANiCA Lam. Encycl. iii. 385 (1789). C. irriqua Smith in Hoppe's Caric. 72 (1828). C. PELiA 0. F. Lang in Linnaa, xxiv. 575 (1851). C. Langii (M. N. Blytt) Steud. Syn. Fl. Cyp. ii. 227 (1855). C. panicca var. * This may be f. inacrolepis Norman, Fl. Arct. Norvcg. 49 (18'.)3), but I have not seen a specimen of Norman's plant. NOTES ON CAEEX. 261 /3. suhliv'ida AucTers. Cyp. Scand. 33 (1849), teste Hartmann/'' C. panicea L. ft. pcUa Ricbter, PL Europ. 159 (1890). Caithness, July, 1887, F. J. Hanhury, This agrees exactly with a specimen sent me by Prof. Blytt from " Norvegia : Christiania (e loco classico Langnosu " ; gathered by his father, Prof. M. N. Blytt. The original specimens on which this was founded were gathered by M. N. Blytt. Lang remarks, "Ab habitu Caricis var/inata, colore livido-glauco totius plants longe differt." British specimens named C. pdia by Dr. Christ seem to me doubtful ; of others I so named from Morven, Caithness, Sir J. D. Hooker wrote me, "I would rather call this voyinata," and I agree, after seeing the true plant. Lang gives no synonyms. The Caithness specimen is the only British example I feel quite sure of as to the name, although specimens from Sutherland seem closely allied to it. C. PANICEA L., var. tamidula Laest. Loc. Parall. PL 283 (1839). I have specimens from Glen Carron, W. Eoss, gathered by Mr. Sewell, which I believe are to be referred here ; the fruits are sub- rotund, and the nut large and violet-coloured. This is not caused by being ergotized, as so many fruits are of panicea, I think more so than any other British Carex. C. piLULiFEEA L., ft. lonyihracteata Lange, Dansk. FL G9-1 (1861). C. inlulifera var. Lcesii Ridley in Journ. Bot. 1881, 97, t. 218. C. saxumbra Lees in Science Gossip, 1880, 278. Dr. Lange having said that his plant is the same as Dr. Lees's, it must bear his name. C. VERNA Chaix. In Loud. Cat. ed. 8, a var. capitata Ar. Benn. was introduced ; it was excluded from the 9th as it seemed only a monstrosity; it was gathered in the Mourne Mountains, Ireland, and had much the habit of C. capitata L. C. vAGiNATA Tausch. in Flora, iv. 557 (1821). The form called ft. sparsijiora by Hartmann, Sk. FL ed. 4, 305 (1843), and Lang in Linncca, xxiv. 576 (1851), occurs in several places in Scotland, but it seems scarcely more than a state of vayinata. A similar sparse- flowered and attenuated form occurs in panicea: I have it from Holyhead (J. E. Grifah). C. PANICEA L., b. intenitedia (Miog.). C. intermedia Mieg. in IJidL Soc. Dot. Fr. X. 83 (18G3). This comes somewhat between C. pa- nicea and C. voyinata, though nearer the former; it occurred in Scotland, near Fort William {Rev. PL S. Marshall). Nyman most unaccountably makes it a var. of C. vulyaris Fr., and Richter follows him ; but there is no doubt about it being a panicea form ; there are authentic specimens at Kew. Dr. Lange named a specimen sent him "(.'. vayinata Tausch.?" C. ATROFuscA Schkr. Car. 1, 106 (1801). C. xistxdata Wahlb. Act. Plolm. 156 (1803). C. CAPiLLARis L., var. major. Mr. Ewing gathered C. capillaris var. major {FL Dan. t. 2374, f. 3 ; Blytt, Noryes Flora, 244 (1861)) in Glen Shee, 12-16 in. high. Blytt says "a foot high." In Trans. * But Norrlin has " C. vublivida mihi = C. panicea sublivida Hartm," 262 NOTES ON CAKEX. Olasr/. Nat. Hist. Soc. 110 (1888), Mr. Ewing records this as "var. (ilju'stris Anders.," which is a very small plant compared with the usual state. C. DEPAUPERATA Good. ex With. An: ed. 2, 1049 (1787). C. ventrkosa Curt. Fl. Lond. f. vi. t. 68 (1790). See Jotini. Bot. 1896, 185, 229. C. L.EViGATA Smith in Trans. Linn. Sue. v. 272 (1800). Var. (jmcilis Ar. Benn. in Jourii. But. 1889, 314. This has much the aspect of C. punetata Gaud. (C. diluta Bieb.), gathered by Mr. Beckwith in Salop. Kichter gives " C. heludes Link in Schrader's Journal, 305 (1799)." Kunth accepts Link's name, and adds to it ''Jide Smith." C. BiNERVis Smith in Trans. Linn. Sue. v. 268 (1800). This varies greatly ; Mr. Druce proposes the name f. vigresccns for the mountain form in Jour a. Bot. 1890, 44, but I think Drejer has named this /3. alpina {Bev. Crit. Car. 474 (1841) ). C. DILUTA Bieb. FL Taur.-Cauc. ii. 888 (1808). C. punctata Gaud. Aqrust. Helv. ii. 152 (1811). Eichter gives " C. pallidior Degl. in 'Lois. Fi. Gall. ii. 299 (1807)." Mr. Druce {A7m. Scott. Nat. Hist. 1896, 40) has a like quotation, but the name is not to be found in the 1807 cd. ; it occurs in the 2nd ed. published in 1828 ■^a date which at once disposes of the claim to priority contended for by Mr. Druce. It should be noted that in some herbaria C. diluta is represented by C. distans L. C. FLAVA L. (see Journ. But. 1889, 330). /3. clatior Schlecht. Fl. Bcrol. 1, 477 (1823). This, according to Prof. Bailey, is C. Icpido- carpa Tausch. C. CEderi Eetz ; should this bear the name of Ehrhart. Calam. Exsicc. No. 79, 1790?; as Eetz declares that his plant is not the plant of Ehrhart. This about equals the var. minor Townscnd, and is not the (Kderi of Kvcj. Bot. ed. 3, which is var. cijperoides Marsson Fl. Neuvorj). 537 (1869) (as a species). C. chrijsitcs Link in Herb. Berolin. teste Bailey, being a MS. name, should not be used or quoted. C. FLAVA X FULVA = C. xautkocarpa Degl. in Loisel. Gall. ii. 299 (1828). C. ACUTiFOKMis Ehrh. Bcitr. Bot. iv. 43 (1789). C.paludosa Good, in Trans. Linn. Soc. ii. 202 (1794). The variety notin Lond. Cat. ed. 9. It is a little uncertain "what name the variety should bear; it is C. spadicca Both, Tent. Fl. Germ. ii. 461 (1793). C. Kochiana DC. Cat. Hort. Monosp. 89 (1813). C. paludosa /3. Kochiana Gaud. Fl. Helv. iv. 130 (1830). C. paludosa /3. suhulata Doll. Bhein. Flora 144 (1843). I am not sure whether C. paludosa var. elongata Schum. En. PL Saell. i. 274 (1801) is the same. C. RiPARiA Curt. Fl. Lond. 4, t. 60 (1821). Eichter has C. crassa Ehrh. Beit. 4, 43 (1789). C. rufa Lam. Encycl. 3, 394 (1789), and Kunth also quotes these names. I have a specimen from Eostherne Mere, Cheshire, H. Searle, 1883, that is very near, if not identical with, C. riparia var. obesa Fries, Sunun. Vef/. Scand. 70 (1846) (nomen) ; C. riparia var. deformis Beurling, Bot. Not. 37 (1853) NOTES ON CAREXi 2G3 = C. nutans Fr. (iioii Host) Nuv. Mant. 1, 19 (1832). It had much the look of the true C. nutans Host. C. RosTRATA Stokes in With. Arr. eel. 2, ii. 1059 (1776). C. ampullacea Good, in Trans. Linn. Soc. ii. 207 (1794). "/3. clatior (Blytt)." The brackets are required because Blytt described his plant under 0. ampullacea in Nonjes Flora, 254 (1861). This is a very tall (3-5 ft.) var. with very long spikes, most of the female ones with male flowers at the apex, broad leaves, flatter than in the type. It is probably the same as C. ampullacea /3. robusta Bonder, Fl. Hamb. 505 (1851). C. iNVOLUTA (Bab.). C. vesicaria L., fi. / Involuta Bab. Man. Brit. Dot. ed. 2, 370 (1847). C. ampullacea var. involuta Baker & Hunt in ReiJ. Hot. Ex. Club for 1863, 9 (1864). C. involuta Syme, En(/. Bot. ed. 3, x. 168 (1870). C. VESICARIA L., p. (lichroa Fr. Mr. Bailey considers (and Lange agrees) that G. vesicaria dichroa Anders. Gyp. Scand. 18 (1849) is a form of rostrata ; it certainly in its reduced spikes shows an approach to G. rotundata Wahlb. ; it must be called G. rostrata var. dichroa Bailey, Stud, of Carex, 39 (1889), in Mem.. Torrey Bot. Club, No. 1. C. VESICARIA X ROSTRATA. X G. Pannewitziana FigQvt ex Nyman. Wood at Inuy, Co. Longford, Ireland, 10/7/83, .S'. A. Stewart. Perthshire, Dr. B. White ; sent me lately by Mr. Barckley. These agree exactly with specimens named as this hybrid, and gathered near Bremen by Prof. Haussknecht. I have many specimens doubt- fully so named by many collectors, but the above plants accord in every point. Mr. Stewart's specimen has much the appearance of G. riparia "^^ gracilescens C. Hartm. = G. riparia X vesicaria Siegcrt, with the exception of the male spikes. C. PULLA Good. Tram. Linn. Soc. 3, t. 14, 78 (1797). Var. Grahami Hook. & Arnott, Brit. Fl. ed. 8, 510 (1860). = G. Grohami Boott in Trans. Linn. Soc. xix. 215 (1843). In addition to the Floras of Britain, the following may be con- sulted as throwing some light on our Carices : — "On some British Carices." McLaren in Botanical Gazette, iii. 17-27 (1851). Priestley on Garex, in Trans. Bot. Soc. Edinb. iv. 71 (1853). For full synonymy of our species see Richter, Plantcc European, 145-171 (1890). A list of European Carices will be found in this Journal for 1885, pp. 260-26G. It is greatly to be regretted that Dr. Boott's splendid worl^ on the Carices has never been completed ; unpublished material exists for it at Kew. In Vet. Ak. llandl. 141 (1803) {Act. Holm.) Wahlcnberg describes a Garex simpliciusrula from "Westmorland, Anglia." Sprengel put this to Kobresia cariciva Willd., and Kunth quoted Sprengel; by the kindness of Dr. Almquist I am able to say this is correct, as ho has examined the specimen for me in the Heib. Vet. Ak. Stockholm. In conclusion I would say, if any British botanist goes to Kew 264 welwitsch's afkican freshwater alg/e. to study Carer, lot him go to Dr. Boott's cabinets ; the specimens are alphabetically arrangecl, and, with Watson's aiid Borrer's her])aria, will answer all general queries. I have to thank the staff of tlie British Museum and Kew Herbaria for ever-ready help in any difficulties. WELWITSCH'S AFIIICAN FEESHWATER ALG/E. By W. West, F.L.S., and G. S. West, A.R.C.S. (Plates 3G5-370.) (Continued from p. 2io.) 3. NosTocHOPSis Wood (18G9). 1. N. LOBATUS Wood in Proc. Amer. Phil. Soc. Pltlladdphui, 127 (1809); in Smithson. Contrib. Knoivl. (1874), iii. 45, t. iii. f. 0; Born. & Flah. I.e. 80 (1887). Crass, fil. 2-0 /x ; diam. heterocyst. 5-5-7 /x. Golungo Alto. Ad rupes inundatis in rivulo Muria pr. Muria sparsius ; Sept. 1854, No. 201. The examples of this are very fine ones, and agree well with the figure given by Wille (in Bihang t. K. Sv. Vct.-Akad. Ilamll. Bd. 8, no. 18, t. i. f. 1-19), with the exception of the cell-walls ; portions only were as moniliform as the previously-found African examples. (Cfr. West & G. S. West in Joxirn. Bot. 1890, 381, t. 301, f. 1-2.) The cell- walls are very thin indeed, not any more appreciable than the cell-walls in the ordinary vegetative cells of a Nostoc. The majority of the heterocysts are lateral, globose, and either sessile or stalked (usually supported on one or two cells) ; sometimes they are intercalary, and then they are always elliptic-oblong. XVII. ScYTONEMACE^E. 1. SCYTONEMA Ag. (1824). 1. S. ciNciNNATUM (Klitz.) Thur. in Ann. Sci. Nat. Ge serie, Bot. i. 380 (1875); Born. & Flah. /. c 89 (1887). Calothrix lanata Kiitz. Alijar. Aq. Bute. Dec. I. no. 5 (1833). Var. jETHiopicuM, var. n. Var. pseudo-ramis filo primario dia- metro paullo tenuioribus, cellulis in parte mediana pseudo-ramorum quadratis vel diametro longioribus. Crass, fil. prim. 25-30 jx, trich. 17-18 /i ; crass, pseudo-ram. 19-21 jx, trich. 9-5-11-5 fx. Paugo Andongo. Alga nigrescens, lubrica, tenax, rhizomata Xyridearum aliarumque plant, palustrium, in spongiosis crescentium, crassis membranis obducens, matricibus tenaciter adha^rens — sicque imprimis loca spongiosa formans. Cum PHchotridte [/i/psopliila et Mowjeotia irref/ularl in pascuis spongiosis breve graminosis juxta rupes gig. prope Catete ; May 1857. No. 111. 2. S. RivuLARE Borzi in Nuovo Giornale Bot. Ital. xi. 373 (1879) ; Born. &Flah. I.e. 91 (1887). Pungo Andongo. Ad muscos rupestres rivulos crescentes per- WELWITSCh's AFRICAN FRESH"WATER ALG.E. 265 repens, in Mimosarum sylvis pr. Pedras de Guinga ; Jan. 1857. No. 13. Stratum goldou- brown or violet ; branches rather scarce, usually solitary, short, a little narrower than the primary filaments ; cells sometimes a little longer than the diameter ; sheaths constantly asperulate. Crass, fil. 24-2G /i; crass, trich. 15-18 /x. This is a most interesting species, having been previously seen only from Italy by its original describer. 3. S. Arcangelii Born. & Flah. I.e. 92 (1887). Crass, fil. 19-20 ix; crass, trich. 12-13-5 /x. Golungo Alto. Ad muscos prope fontem magn, ad Banza de Soba Bango sitam ; Sept. 1855. No. 159. The following may be a larger form of this species : — Golungo Alto. Filaments forming somewhat irregular peni- cillate tufts of a brown colour. Crass, fil. 23-25 /x; crass, trich. 14-5-17 /x. The specimens were not in a condition for satisfactory identification. Ad fontem prope Banga de Bango, socialis cum Anthocero, etc. ; Sept. 1855. No. 158. 4. S. MiLLEi Born, in Born. & Thur. Notes Ahjolon. 147 (1880); Born. & Flah. I.e. 93 (1887). Crass, fil. 18-5-25 /x ; crass, trich. 11-14-5 /x. Heterocysts sometimes subquadrate. Pungo Andongo. Ad rupes vulc. humectans prope Cacella, inter Dichotrichem ollvaccam ; Febr. 1857. No. 7. 5. S. ambiguum Kiltz. Spec. Ali/ar. 894 (1849) ; Tab. PJiijc. ii. (1850-2), 7, t. 26, f. ii. ; Born. & Flah. /. c. 100 (1887). Crass, fil. 8-9-5 /x; crass, trich. 2-8-3-5 /x. Pungo Andongo. Inter S. Myoclirous var. clionujraphicum ; Febr. 1857. No. 6. The heterocysts are about three times longer than broad, and sometimes as many as three together. 6. S. riGURATUJi Ag. S^ist. Ah/ar. 38 (1824) ; Born. & Flah. /. c. 101-3 (1887). Crass, fil. 16-20 //; crass, trich. 6-5-8 /x. Iluilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. In gramiuosis paludibus juxta rivulura de Lopollo ; April 1860. No. 180. 7. S. Myocurous (Dillw.) Ag. JJispos. Ahjar. Suec. 38 (1812); ]3orn. it Flah. I.e. 104-0 (1887). Conferva Myochrous Dillw. Brit. Conferv. 37, t. 19 (1802). Var. cHoROGRAPHicuji, var. u. Var. vaginis uon ocrcatis. Crass, fil. prim. 28-31 /x ; crass, ram. 21-25-5 /x; crass, trich. 7-5-11 /x. Pungo Andongo. Freq. et temp. pluv. (Dec. usque Apr.) Jjete vegetans, in summis rupibus ; Febr. 1857. No. 6. Alga crecta vel decumbens, cajspitose crescens, filamentis oculo nudo nigris, penicillatim c centro adli. radiantibus, mox latas rupium gigant. plagas, imprimis verticales, colore atro tingens, qua ex causa = Pedra vegras de Pungo Andongo. Etiam ad latera boreal, et occid. de Pedra Songuc ; Apr. 1857. No. 12. Alga terrestris vel potius rupcstris, eximie gregaria, incrementi rapidissimi, juventnte et tempore per dies uebuloso, 26G welwitsch's African freshwater algm. atrovireus solis luce et nidore cito nigrescens, latissimis rupium plagas perpendiculares colore aterrimo tingens. This agrees in every particular with *S'. Myochrous, with the exception that the filaments are never ocreate. From S.fujuratum it differs in being of larger dimensions, and in having a relatively thicker sheath. 8. S. insigne, sp. n. S. rnpestris, spongioso CcX^spitosum, pulviniilis elasticis, 4-6-5 mm. altis, violaceo-viridibus vel violaceo- f nscescentibus ; filis crassis, in fasciculis arete adhrerentibus ; pseudo- ramis solitariis vel raro gemiuatis, longis et flexuosis, filo primario paullo angustioribus, apicibus subattenuatis ; vaginis crassis, achrois, lamellosis, marginibus rectis vel irregularibus non ocreatis, srepe coufluentibus ; trichomatibus pallide ferugineis, cellulis distinctis- simis, quadratis vel diametro 1^-plo longioribus, nonnunquam diametro duplo brevioribus et leviter torulosis, sajpe cylindricis et diametro 3-4-plo longioribus ; heterocystis quadratis ; hormogoniis brevibus, cellulis quadratis intcrdum diametro brevioribus, lamellis interioribus vagina luteis vel aureis. Crass, fil. prim. 25-29 //. (usque 33 //) ; crass, ram. 16-19 /^ ; crass, trich. 7'5-13*5 jx; long, hormogon. 100-170 /x, lat. 15-19 ju Golungo Alto. Ad rupes madidas in umbrosis juxta rivum Coango inter Sange et Undelle, nunc violaceo-viridis, nunc intensius violacea; May 1856. No. 5. Etiam ad rupes rivul. Coango humect, pulvinula livido-cinerea spongiosa formans; June 1856. No. 140. This plant is noticeable for the variability of its filaments, some having parallel margins with long cells, others having firm irregular margins with somewhat torulose trichomes, consisting of very short transversely elliptic cells of irregular size. The latter filaments much resemble the branches of a Stiijonema. The sheaths of this plant are altogether remarkable, being quite colourless, and often very irregular in the margin ; wherever they come in contact with each other they appear to coalesce, and this coalescence gives rise to a phenomenon {viz. the apparent inclusion of two parallel tri- chomes in the same sheath) which, so far as we are aware, has not been previously noticed in this genus. The branches are also most peculiar, the majority being solitary, and given ofl" laterally from one cell of the primary filament precisely as in Hapalosiphon. Taking into consideration all these points, there are still un- mistakable characters which place the plant in the genus Scytoncma. 2. ToLYPOTHRix Kiitz. (1843). After examining the three following species, we cannot agree with Bornet and Flahault in separating the genera Hassallia and Tuhjpothrix. The former is said to be distinguished from the latter by its fragile filaments and its terrestrial habit. The three species referred to are all terrestrial as described for Hassallia, but the sheaths (especially that of T. crassa) are very firm, persistent, and iiexile, agreeing with those of Tohjpothrix. Under which genus ought these species to be placed ? The terrestrial habit points to Hassallia, the flexile and non-fragile filaments to Tohjpothrix, It appears to us that the only character left to separate the two sup- WELWITSCIl'S AFRICAN FRESHWATER ALGM. 267 posed genera is the fragility of the sheaths, which in itself is certainly an insufficient generic distinction. 1. T. crassa, sp. u. T. terrestris, strato crasso spongioso nigricante vel atro-viride ; filis crassis flexuosis, dense intertextis ; pseudo-ramispaucis, remotis, brevibus et suberectis; vaginis crassis, firmissimis, valde lamellosis (lamellis inaiqualibus in crassitudine), non ocrearis, sordido-luteis ; trichomatibus aerugineis, cellulis sub- quadratis vel diametro duplo longioribus ; heterocystis solitariis, quadrato-oblongis vel subquadratis. Crass, fil. 25-27 /x ; crass, trich. 11-5-14-5 /x. Pungo Andongo. Ad dextr. flum. Cuanza locis palnstribus inter Lythraceas, etc. prbpe Candumba; March 1857. No. 11. 2. T. phyllophila, sp.n. T. strato dense intricato, olivaceo- viridis vel nigro-viridis ; fills circiter 1 mm. altis, irregulariter pseudo-ramis ; pseudo-ramis brevibus, filo primario subparallelis ; vaginis crassis, achrois, firmis et persistentibus, non ocreatis ; trichomatibus subparallelis, olivaceo-viridibus ; cellulis diametro 1-1^-plo longioribus, nonuuuquam diametro brevioribus (plerumque in ramis parvis et ad apices filorum primariorum est) ; heterocystis solitariis, ad basin pseudo-ramorum vel inter eos, subquadratis, oblongis vel subhemisphatricis. Crass, fil. 12-5-18 /x; crass, trich. 8-5-10 [J.; long, heterocyst. 8-5-13 /x. Goluugo Alto. Ad folia viva lUiwrea; (Alsodeiic) spec, e Viola- cearum familia, in sylvis deusis de Alto Queta ; Dec. 1855. The nearest species to this is T. hijssoidea (Hass. Brit. Frcshw. Ahj. i. 233-4 ; ii. t. Ixvii. f. 5), from which it differs in its much thicker colourless sheath, which is not fragile, and in the usually longer cells. 8. T. arenophila, sp. n. T. terrestris, strato compacto tenue submcmbranaceo fulvo ; filis brevibus, dense intricatis, flexuoso- contortis et apicem versus atteuuatis ; pseudo-ramis rarissimis brevibus et subappressis ; vaginis crassis, firmis et lamellosis, fiavis vel ilavo-brunneis, marginibus glabris, non ocreatis ; tricho- matibus terugineis ; cellulis diametro l:^-2^-plo longioribus, proto- plasmate granuloso ; heterocystis solitariis, rectangulari-oblongis, diametro circiter li-plo longioribus. Crass, fil. 14-5-15 /x ; crass. trich. 5-5 /x. Pungo Andongo. Ad terram arenoso-huraosam in editissimis rupi- bus Pedra Cazella, cum Schhotriche delicatissuna ; Jan. 1857. No. 151. 4. T. LiMBATA Thur. in Born. & Flab, in Ann. Set. Nat. 7e serie, Bot. v. 124 (1887). A smaller form with yellowish brown sheaths, which are often somewhat rough on the exterior. Crass, fil., 9-5- 10 ji ; crass, trich. 5'5-7 /x. Mossamedes. Cum Oscillatoria tenui in umbrosis muscosis ad ripam fiuminis Bero prope Cavalheiros ; Aug. 1859. No. 191. XVIII. NOSTOCE^. 1. NosTOc Vauch. (1803). 1. N. repandum, sp. n. Thallis irregulariter expansis et laciniatis, circiter 15 cm. latis, buUato-gyrosis, fere coriaceo- 268 WELWITSCn's AFEICAN freshwater ALGiE. tenacibus, olivaceo-viridibus ; filis dense iutricatis et flexuosis, vaginis non visis ; trieliomatibus angustissimis, pallide rerngi- nosis, cellulis ellipticis vel doliformibus, diametro circiter 1^-plo longioribus ; heterocystis globosis, circiter diametro tricbomatis duplo latioribus ; sporis subglobosis, leviter augulosis, episporio glabro et acbroo. Crass, trich. 2-5 /x; diam. lieterocyst. 4-5 /x ; diam. spor. 7*5-9'5 //. Piingo Andongo. Freq. ad rupes editiores vulcan. prope Ca- bondo tempore pluvio, intra dies duas tresve ingente copia obvia ; Febr. 1857. No. 21. The nearest species to this is N. Immifimim Carm., from which it is distinguished by its very large coriaceous non-tuberculate thaUus, by its constantly elliptical or doliform cells, and by its larger heterocysts and spores. 2. N. paradoxum Welw. MS. Thallis vix 1| mm. latis, gre- gariis vel solitariis, olivaceo-viridibus et nigrescentibus, pcridermide tenue et hyaline ; filis densissime intricatis, flexuosis et abrupte contortis ; trieliomatibus uniformibus, feriiginosis, cellulis cylindricis, quadratis vel diametro 1^-1^-plo longioribus ; heterocystis solitariis (raro binis), oblongo-ellipticis et submagnis. Crass, trich. 3-5- 3-8 /a; long, heterocyst. 8-5-9*5 /x, lat. G*5-7'5 /x. Pungo Andongo. Ad mucos dense csespitosos juxta rivulos prope Pedra Songue ; April 1857. No. 20. This species belongs to that division of the section Iluiiii/usa with cylindrical cells. 3. N. MuscoRUM Ag. Dlsjios. Alqar. Suec. 44 (1812) ; Kiitz. Tab. Phyc. ii. (1850-2), 2, t. 5, f. iv; Born. & Flah. I.e. vii. 200-1 (1888). Crass, trich. 3-5-3-G /x; diam. heterocyst. G /x. Pungo Andongo. Ad rupes schist, pr. Candumba ; Jan. 1857. No. 22. Cambondo ; Febr. 1857. No. 285. 4. N. BHNUTUM Desmaz. Plantes Cnjptog. clu Nord de la France, fasc. xi. no. 501 (1831) ; Born. & Flah. /. c. 209 (1888). This is not identified with certainty, as it was seen in very small quantity; spores elliptical, concatenate, long. 5-5-5 jj., lat. 3'5-4-5 /x; crass, trich. 2'5 /x. Mossamedes. Inter CEdogoninm sp. in stagnis puris ad ripas flum. Bero ; Aug. 1859. No. 190. 2. ANABiENA Bory (1822). 1. ANABiENA sp. Golungo Alto. Specimens very fragmentary, and spores not attached to tho trichomes. Crass, trich. 3-3-5 /x ; diam. heterocyst. 5-5-6-5 /x; long. spor. 23 /x, lat. 9-5 /x. Freq. sed cito marcescens ad latera rivuli Coango ; Aug. 1857. No. 163. XIX. CAMPTOTKICHEiE. Ordo novus Hormogonearum Homocysteai-um ; fila brevia, vagi- nata, irrcgulariter flexuosa, extremitates versus attenuata, serie irregular! singula cellularum intra vaginam unamquamque, cellulis hand uniformibus, vaginis delicatis et achrois. WELWITSCH's AFRICAN FRESHWATER ALG^. 269 1 . C amptothrix, gen . n . Plantse minutfe, filamentosse et epipbyticas ; fila brevissima, baud ramosa, e serie singula cenularum irregulariim formata, supra algas majores aquaticas repentia, irregulariter flexuosa et submoniliformia, vaginata ; vagma debcata, arcta et byabna ; cel- lulee subglobosffi, rotundo-quadratre vel subrectangdares, apicem versus filorum minores, prope apicem filorum vaginis indistinctis vel destitutis ; protoplasma pallide ferugineum et bomogeneum. 1. C. repens, sp.unica. Cbaracter idem ac generis. Crass. fil. 3-8-5-8 /x. Huilla. Epipbytica supra Schizotrichem natantcm et Microcolewn sociatiim, in uliginosis editioribns prope Humpata, Empalanca et Lopollo, plagas spongiosas unacum Eriocauloneis, Xyridibus et Utriculariis constituens ; May 18G0. No. 15. Tbe diverse forms of tbe cells and tbeir irregular disposition in tbe sbort tapering filaments give a cbaracter to tbis genus not possessed by any otber of tbe genera of eitber tbe Varjinariecc or tbe LynghijecB, and necessitate tbe plant being placed as tbe type of a new order [Cam plot nchccc) of llormofjonecc Humoct/stece. XX. — Vaginarie^. 1. ScmzoTHRix Kiltz. (1843). 1. S. elongata, sp. n. S. libere natans, calce non incrustata et non in strato distincto; fibs angustissimis et lougitudine maximi, flexuosis et ad intervalla longa bifurcatis ; vaginis firmis subarctis, cylindricis, byalinis et acbrois, marginibus parallelis et leviter asperis, valde attenuatis ad apicem longum criuiformem ; tricbo- matibus liete a^ruginosis, 1-3 intra vaginam, parallelis vel sub- torulosis, ad dissepimenta non constrictis ; cellulis diametro 4-8-plo longioribus, dissepimentis plerumque indistinctis ; parte apicali tricbomatis attenuata. Crass, fil. 7"5-13 // ; crass, tricb. l-2~l-5 fi. Huilla. Inter Hapalosiplnmem lutcnlum et Microsporam Ldfi/miii, Sec, in uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. Tbis differs from tbe otber allied species in several notewortby features, sucb as tbe extremely long flexuose attenuate filaments witb few brancbes, tbe long cells, and tbe somewbat close cylindrical sbeatb. 2. S. delicatissima, sp.n. S. terrestris; fills minutis, brevis- simis, tortuosis et intcrdum ramosis ; vaginis subamplis et firmis, marginibus glabris vel irregulariter undulatis, byalinis, subbomo- geneis, apicibus subobtusis vel sicpius longissime attenuatis; tricbo- matibus la)te a;rugineis, 1-2 intra vaginam, parallelis vel leviter torulosis, ad dissepimenta constrictis ; cellulis diametro 6-8-plo longioribus, protoplasmate bomogeneo ; cellula apicali acute conica. Long. tot. fil. 100-100 /x; crass, fil. 5-6-5 pr, crass, tricb. 0-6-0-8/x. Pungo Andongo. Cum TuJijpotricJie arenophila, ad terram arenoso- humosam in editissimis rupibus Pedra Cazella; Jan. 1857. No. 151. Tbis species is very easily overlooked on accouut of its minute size and delicacy. 270 welwitsch's African freshwater alg^. 3. S. Friesii (Ag.) Gomont in Aim. Sci. Nat. 7e serie, Bot. xv. 316-8, t. 9, f. 1, 2 (1892). Oscillatoria Friesii Ag. Synops. Ah/ar. Scand. 107 (1817). Crass, fil. 9-10 /x ; crass, trich. 4-5-5-3 [jl. ' Huilla. Alga gelatinosa, badio-fusca, folia Xyridearum in editis de Morro de Lopollo obducens ; Febr. 18G0. No. 192. 4. S. THELEPHORoiDEs (Mont.) Gomont, I. c. 319, 320, t. 10, f. 1-4 (1892). Scijtonema? theleplioroidcs Montagne, I.e. 2e ser. Bot. xii. 45 (1889). Crass, fil. 38-48 /x; crass, fil. 6 /*. Huilla. In paludibus exsiccandis ; April 1860. No. 170. A few small examples of this species occurred in this gathering ; we should like to have seen more of it, as it appears to be an aquatic form of the species. 5. S. FuscEscENs Kiitz. Phijc. Gener. 230 (1843) ; Gomont, he. 324-5, 1. 11, f. 4-6 (1892). Crass, fil. 12-32 /x ; crass, trich. 1-5-3 /x. Huilla. Freq. apud Hapalosiphonem mireum, in paludibus ex- siccandis ; April 1860. No. 176. Etiam in graminosis paludosis juxta rivulum de Lopollo ; April 1860. No. 180. Var. africana, var. n. Var. fills brevioribus ; trichomatibus 2-3 intra vaginam, cellulis diametro l-|-2-plo longioribus. Crass, fil. 15-20 /x ; crass, trich. 2-5 /x. Huilla. Terrestris, cum Porpihyrosiphone Notarisii, in pascuis pluv. autumnalibus frequentius inundatis, demum exsiccantibus ad lacum magnum de Ivantala ; March 1860. No. 18. 6. S. natans, sp. n. S. inter alias algas aquaticas reperta, plus minusve solitaria vel in crespitibus minutissimis intricatis ; fills elongatissimis et in partem superiorem sparsim ramosis ; vaginis firmis, crassissimis et lamellosis, marginibus parallel! s ct irregu- laribus (nonnunquam subglabris), apicem versus gradatim et gra- datim angustatis, apicibus interdum multe attenuatis, lamellis interioribus circa trichomata Ifete rubris (subsanguineis), lamellis exterioribus achrois vel pallide rubris ; trichomatibus rerugineis 1-4 (plerumque circiter 3, raro 5-6) intra vaginem, parallelis vel hiuc inde torulosis, elongatis, ad genicula non constrictis, cellulis sub- quadratis vel diametro duplo longioribus, protoplasmate granuloso ; cellula apicali conica. Crass, fil. 49-61 /x (usque 92 /x) ; crass, trich. 5-8-6-5 fx. Huilla. Inter Microsporam Ldffjrenii, kc, in uliginosis editiori- bus prope Humpata, Empalanca et Lopollo, plagas spongiosas unacum Eriocauloneis, Xyridibus et Utriculariis constituens ; May 1860. No. 15. Morro de Lopollo ; May 1860. No. 182. Etiam in graminosis paludosis juxta rivulum de Lopollo ; April 1860. No. 180. The nearest species to this is ay, he came south again to Melbourne, publishing afterwards tiie main botanical results in the Linnean Society's Journal. lu 1857 he was appointed, as before said, Director of the Botanic Gardens as well as Government Botanist. There now commenced the period of his greatest activity, to far as the publication of works T 2 27 G FERDINAND VON MUELLER. is concerned, and from this date up to the time uf his death it may be said that he was always engaged upon some publication dealing with the Australian flora. One of the earliest of these was the Plants Indigenous to the Colony of Victoria, whilst between the years 1858 and 1881 eleven parts of the Fragmenta P/iypy/niphicB AustraliiB were issued ; this work being, we believe, the first published in Latin in Australia. Its object was to contain descriptions of new species of plants and observations of importance on others whicii came under his notice, the whole being intended as a record leading up to a comprehensive flora of Australia, which it was his long-cherished desire to issue. When the time came, however, for carrying the work into execution, it was apparent that it could only be successfully done by someone who had access to the type specimens in Europe, and this being impossible in the case of Dr. Mueller, the work was published by Bentham, associated with the former. All collections were first examined by him, then sent to London, revised, and finally dealt with by Bentham, the result being the seven classical volumes forming the Flora Australiensis, published between 1863 and 1878. We quote the following words from Mr. Bentham's introduction to the "Flora": — "When it was first contemplated to bring out a general Flora of Australia under Government sanction. Dr. Mueller was naturally looked to as the botanist best qualified for undertaking the task of preparing it ; and in the hope that it would be entrusted to him he had devoted his utmost energies to collecting the necessary materials. But there was one indispensable step, the examination of European herbaria, where the published types were deposited, which he was unable to take ; and it is a signal proof of the generosity of his disposition, and the absence of all selfishness, that when it was proposed to him that the preparation of the Flora should be confided to me, on account of the facilities which my position here gave me for the examination of the Australian col- lections I have mentioned above, he not only gave up his long- cberished projects in my favour, but promised to do all in his power to assist me — a promise which he has fulfiUed with the most perfect faith." Already the value of his work had been recognized by his election into the Royal Society in 1861, and ten years later he was created a Baron of the Kingdom of Wiirtemburg. Honours of various kinds began to reward his efforts, but instead of tempting him to rest upon Iii? laurels, they only seemed to spur him on to further work. In 1879 he commenced the publication of what is perhaps his most important single contribution to our knowledgeof the Australian flora — the ten decades of the Fncalgptographia, a difficult genus, in which naturally he was deeply interested. Not only did the purely scientific side of the work appeal to him, but here as in other work the economic aspect found in him a zealous investigator. It was mainly through his efforts that attention was drawn to the supposed hygienic properties of the trees ; and it was through his instru- mentality that the Blue Gum — Eitcalgptus Globuhis — was introduced FERDINAND VON MUELLER. 277 into the malarious districts of the old world, whilst he was also much associated with Mr. Bosisto in the iuvestigatiou of the eucalyptus oils. From the economic aspect, perhaps his most important work — • indeed, it would seem to have been one of his most favourite ones • — was that on Select Extni-Tivpical Plants, intended as a guide to plants suitable for industrial cultivation in the colony, and of which between 1871 and 1895 no fewer than eight editions were issued. Of works of economic value may also be mentioned a translation, with original notes, which he caused to be published at his own expcuse, of Wittstein's Onjanic Constituents of Plants, and also reports by Messrs. Hoffman and Kummel on Chewical Ecsearches on Vi'i/etable Products of Victoria. In 1887-88 he published the Iconographj of Australian Species of Acacia and Cognate Genera, consisting of 130 plates, with explanatory matter ; in 1880 the work on ^Ji/oporineiv was commenced, with seventy-two plates, and in 1890-91 he published the two volumes on Salsolaceous Plants — a work of considerable economic value, and likely to be still more highly valued when Australia is fully alive to the great economic importance of this part of its flora. In 1885 he commenced to work, at the instigation especially of the late Dr. F. S. Dobson, a former president of this club, on the DicJiotomous Key to Ihe Victorian Flora. The plan was one which was clearly distasteful to him, and though, as with all his other work, he expended upon it a great amount of conscientious labour, it must be frankly admitted that from the point of view for which it was intended it was not a success ; indeed, it may be doubted whether a work on such a plan could be satisfactory beyond a certain and very limited degree. The Baron was pre-eminently an investigator, and not a teacher in the ordinary sense of the word, aud with his profound knowledge it is not to be wondered at that he found the dichotomous method almost impossible to utilize in the grouping and identification of species. Amongst other works may be noticed his papers on the Papuan plants of D'Albertis and Macleay, and, in more recent years, on those collected by Sir \Vm. Macgregor in New Guinea, and in the New Hebrides by Mr. Campbell. The works of explorers such as Babbage, M'Douall Stuart, Giles, and J. and A. Forest, and the report of the Elder expedition, contain valuable lists of the flora of various little known parts of the continent. For years past collectors from all parts of the continent, many subsidized by himself, but many others, fired by his enthusiasm, working gladly to assist him, have supplied him with material, the results of his work being scattered through various publications, more especially those of the Linuean Society of New South Wales, the Victorian, Tasmanian, and South Australian Royal Societies, and the Field Naturahsts' Club of Victoria. One of the finds which pleased him most in recent years was that of the only known Australian Rhododendron (It. Locha), secured by Mr. Sayer on Mount Bellenden-Kerr in Queensland. His invaluable Sijstrwatic Census cr,n,i. Grab, in Phil. Journ. 1830, 70 ; Bot. Mag. t. 3016 (1831) ; ? E. Mey. I.e. 196 (1837); Dene. I.e. 647 (1844). South-west Cape Colony. 5. B. CAFFRUM N. E. Br. in Gard. Chron. 1894, xvi. 62. Tapeino- stehna eaffrum Schltr. I.e. 54 (1893). Kaffraria. 6. B. ScHONLANDiANUM Schltr. in Engl. Jahrb. xviii. Beibl. 45, 35 (1894). Uitenhage. 7. B. fcetidum Schltr. I.e. xx. Beibl. 50, 52 (1895). Transvaal. 8. B. oiANTHUM Schltr. /. e. 53 (1895). Transvaal. • Erroneously printed Z). .-InioW/i. REVISION OF EXTRA-TUOPICAL SOUTH AFRICAN ASCLEPIADACE^. 293 9. B. PULCHELLUM Schltr. }.c. 53 (1895). Micraster jnilchellus Harv. Gen. S. Afr. PI. ed. 2, 242 (1868). Natal, Transvaal. 10. B, Mevterianum Schltr. in Engl. Jahrb. xxi. Beibl. 51, 14 (1896). B. cafniin Schltr. I.e. xviii. Beibl. 45, 13 (1894) (nee N. E. Br.). B. tuberosum E. Mey. I.e. 196 (1837) (nee R. Br.). Kafifraria. Species dubia. 11. B.MicRANTHUME.Mey.Z.c. 196(1837); Dene. ^.c. 647(1844). Kaffraria. XXXV. Brachystelmaria Schltr. in Engl. Jahrb. xx. Beibl. 50, 50 (1895). 1. B. LONGiFOLiA Scliltr. I. c. 50 (1895). Transvaal. 2. B. macropetala Schltr. I.e. 51 (1895). Transvaal. 3. B. RAMOsissiMA Schltr. I. e. 51 (1895). Transvaal. 4. B. natalensis Schltr. /. e. 50 (1895). Dichtelia natalensh Schltr. /. c. xviii. Beibl. 45, 35 (1894). Natal. 5. B. Gerrardi Schltr. I.e. 50 (1895). Braehystelma Gerrardi Harv. Thes. Cap. ii. 61, t. 196 (1863). Dlclmlia Gerrardi Harv. Gen. S. Afr. PI. ed. 2, 241 (1868). Natal, Zululand. 6. B. occidentalis Schltr. Braehystelma oeeidentale iichlir. Ahh. Bot. Ver. Brandenb. xxxv. 53 (1893). Simonstown. XXXVI. DicH^LiA Harv. Gen. S. Afr. PI. ed. 2, 241 (1868) ; Bth. & Hk.f. Gen. PI. ii. 780(1876). 1. D. FiLiFORMis Schltr. Braehystelma (§ Diehcelia) Jiliformis Harv. Thes. Cap. i. 59, t. 93 (1859). 2. D. OVATA Schltr. Braehystelma (j Dichcdid) ovata Oliv. in Kef. Bot. iii. t. 226 (1871). Colesberg. 3. D. Gat.pinii Schltr. in Engl. Jahrb. xviii. Beibl. 45, 25 (1894). Transvaal. 4. D. viLLOSA Schltr. I.e. 25 (1894). Transvaal. 5. D. elongata Schltr. /. c. 35 (1894). Somerset East, Albany. 6. D. UNDULATA Schltr. I.e. 36 (1894). Uitenhage. 7. D. PYGMJEA Schltr. in Journ. Bot. 1894, 262. Kaffraria ? 294 REVISION OF EXTRA-TEOPICAL SOUTH AFRICAN ASCLEPIADACE^. 8. D. BREviFLORA Scblti*. ill Engl. Jabrb. xx. Beibl. 50, 49 (1895). Transvaal. 9. D. PALLIDA Scbltr. I.e. 49 (1895). Transvaal. 10. D. ciRciNATA Scbltr. in Engl. Jabrb. xxi. Beibl. 54, 13 (1896). Biachystelma circinatum E. Mey. Comm. PI. Afr. 196 (1837). Wittbergen. XXXVII. Ceropegia L. Gen. 65 (1737) ; Dene, in DC. Prodr. viii. 641 (1844) ; Bth. & Hk. f. Gen. PI. ii. 779 (1878). Systrepha Burch. Trav. i. 546 (1822). 1. C. africana R. Br. in Bot. Reg. t. 626 (1822); Dene. Ic. 642 (1844). C. linearis E. Mey. Comm. PI. Afr. Austr. 194 ; Dene. /. c. 644 (1844). Uiteubage, Albany, Kaffraria. 2. C. stapeli.eformis Harv. in Pbil. Mag. 1827, 121; Bot. Mag. t. 3567 (1836) ; Dene, in DC. Prodr. viii. 643 (1844). Uitenbage, Albany, Kaffraria. 3. C. CARNOSA E. Mey. Comm. PL Afr. Austr, 193 (1837); Dene, /.c. 645 (1844). Uitenbage, Albany, Kaffraria. 4. C. MULTiFLORA Baker in Saund. Ref. Bot. i. t. 10 (1869). Sijstrepha multijiora Burcb. MSS. ex Baker /. c. Cradock. 6. C. FiMBRiATA E. May. I. c. 194 (1837) ; Dene. I.e. 645 (1844). C. Sandersoni Harv. Bot. Mag. 5792 (1869). Pondolaud, Natal, Zululand. 6. C. AMPLiATA E. Mey. I.e. 194 (1837) ; Dene. I.e. 645 (1844). Albany, Kaffraria, East Griqualand, Pondoland, Natal. 7. C. Meyeri Dene. /. e. 645 (1844). C. pubesceus E. Mey. /. c. 193 (1837) (nee Wall.). Kaffraria, East Griqualand, Pondoland, Natal, Zululand, Orange Free State, Transvaal. 8. C. BowKERi Harv. Tbes. Cap. i. 9, t. xiv. (1859) ; Bot. Mag. t. 5407 (1864). Kaffraria. 9. C. soRORiA Harv. ex Bot. Mag. t. 5578 (1866). Albany, Kaffraria. 10. C. Barklyi Hk. f. Bot. Mag. t. 6315 (1877). Kaffraria. 11. C. MoNTEiROiE Hk.f. Bot. Mag. t. 6927 (1887). Delagoa Bay. 12. C. RADicANS Sehltr. in Engl. Jabrb. xviii. Beibl. 45, 12 (1894). Kaffraria. 13. C. Galpinii Scbltr. I.e. 23 (1894). Transvaal. 14. C. TOMENTOSA Scbltr. /. e. 33 (1894). Kaffraria. WIIiTSHIRE UREDINE.E. 295 15. C. WooDii Schltr. I. c. 3i (1894). Natal, Transvaal. 16. C. CAKFRORUM Scliltr. in Journ. Bot. 1894, 358. Natal. 17. C. ANTENNiFERA ScWtr. in Engl. Jahrb. xx. Beibl. 50, 46 (1895). Natal. 18. C. PACHYSTELMA ScLltr. l. c. 47 (1895). Natal, Transvaal. 19. C. sETiFERA Schltr. Z. c. 48 (1895). Zululand, Transvaal. 20. C. FiLiFORMis Schltr. Systrepha Jiliformis Burch. Trav. i. 546 (1822). C. iiifandibuliformis E. Mey. I. c. 194 (1837) ; Done. I.e. viii. 645 (1844). British Bechuanaland, Barldy, Camdeboo. XXXVIII. RiocREuxiA Dene, in DC. Prodr. viii. 640 (1844) ; Bth. & Hk. f. Gen. PI. ii. 780 (1876). 1. R. TORULOSADcne. /. c. 640 (1844). Ceroper/ia torulosa E. Mey. Comm. PI. Afr. Austr. 194 (1837). Kaffraria, East Griqualand, Pondolaud, Natal, Zululand, Orange Free State, Transvaal. 2. R. Flanagani Schltr. in Engl. Jahrb.xviii. Beibl. 45, 13 (1894). Kaffraria, Natal. 3. R. picTA Schltr. /. c 24 (1894). Transvaal. 4. R. POLYANTHA Schltr. in Journ. Bot. 1895, 272. Kaffraria, East Griqualand, Natal, Orange Free State. (To be continued.) WILTSHIRE UREDINEyE. By Edward J. Tatum. Some attention has now been paid to this section of the Micro- fungi of the county, with the result that a fair preliminary list is possible, including a few rare species, though still wanting some which might be expected to occur. The suffix (S.W.) indicates that the record is supposed to be new for South Wilts only, there being already a notice for North Wilts, though not in every case of quite certain identity. I am indebted to Dr. C. B. Piowright for very special help in identification. A few hetero3cious species can- not, however, be named conclusively from aBcidiura forms. The localities are on my own authority. Uro)iiyccs fabcc (Vers.) {^.W.). On Vicia sepium : 5. Clarendon; 6. Pitton ; 9. Compton ; 10. Aldcrbury. — U. (jeran'd {T>Qi.), On Geranium pyrenaicum : 6. Winterbourne Earls ; 7. Old Sarum ; 10. Britford. — U. dactylidis Otth. ^cidium of this or of Puccinia 296 WILTSHIRE UREDINE^. ))H(ijnHsitiii(t or possibly of U. poce on Ikmunculus bulbosus: G. King Manor; V.Stratford; 10. Harnbam. — U. pnte B,B,hh. iEcidium on n. Ficaiia (S.W.): 5. W. Dean; 6. Hurdcott ; 7. Stratford; 9. Dinton ; 10. Harnbam. — U. rumicis (Sebum.). On llumex ohtusi- folim : 7. Stratford. On R. Acetosa: 6. Winterbourne Earls; 9. Compton ; 10. Alderbury. — V. ficaricc (Sebum.). On Ranunculus Ficaria: 5. Clarendon; 6. Laverstock ; 10. Trafalgar. Puccinia thesii (Desv.). On Thesium liumifusum : 6. Winterbourne Earls ; 7. Durnford Down. — P. lopsajue (Scbultz). On Lapsana communis: 5. W. Grinstead ; 6. Pitton ; 7. Stratford; 9. Dinton; 10. Alderbury. — P. imlverulenta Grev. On Epilohium hirsutuw : 6. Hurdcott. On E. par vijiorum: 5. Bentley Wood ; 10. Alderbury. On K. muntanum: 5. W. Dean. On E. obscurum : 5. Clarendon. — P. t'tote (Sebum.). On Viola sijlccstr is : 5. W. Dean; 10. Alderbury. — P. pimp i7iell(c [8tva,nss). On PimpineUa Saxifraga : 10. Harnbam. On Anthriscus si/lvestris : 6. Milford ; 7. Old Sarum. On Angelica sylvestrls : 5. Bentley Wood. — P. mentha Pers. On CalamintJia (Jlinopodinm : 9. Compton ; 10. Harnbam; Alderbury. — P. primula (DC). On Primula vulgaris: 5. W. Dean. — P. sanicuhe. Grev. On Sanicula europaa : 5. W. Grinstead ; 6. Clarendon ; 10. Harnbam, P. graminis Pers. Jj^cidium on Berbei-is vulgaris: 7. Old Sarum. — P. coronifera Klebabn. ^Ecidium on Rhamnus catharticus (S.W.) : 5. Standlyncb Down ; 6. Pitton; 7. Durnford Down; 10. Harnbam. — P. phalaridis Plow. iEcidium on Arum maculatuia (S.W.) : 5. Clarendon; 6. Hurdcott; 7. Old Sarum ; 9. Compton; 10. Britford. — P. dispersa Erich. & Henn. On corn : 6. Petersfinger ; 7. Wood- ford.— P. car ids (Sebum.). On CAirex acuti/ormis: 6. Hurdcott. ^cidium on Vrtica dioica (S.W.): 5. Clarendon; 6. Hurdcott; 7. Fisberton ; 9. Dinton; 10. Harnbam. — P. phragmitis (Sebum.). iEcidium on Rumex sp. (S.W.) : 7. Stratford ; 10. Alderbury. — P. magnusicrna Korn. jEcidium of tbis or of Vromyces pocB on Ranun- culus repcns: 5. W.Dean; 6. Laverstock; 7. Fisberton; 9. Dinton; 10. Netberhampton. — P. suaveolens (Pers.) (S.W.). On Cniciis arvensis : 5. Farley; 6. Ford; 7. Salterton ; 9. Dinton; 10. Harn- bam.— P. bullata (Pers.). On Coniummaculatum: 6. Queen Manor; 7. Stratford. — P. hieracii (Sebum.). On Cnicus lanceolatus ; 10, Britford, On Centaurea Scabiosa a.nd C'rejtis virens : 10, Standlyncb, On llieracinm sciaphilum : 10. Harnbam. On H.boreale: 9. Comp- ton.— P. taraxici Plow. On Taraxacum officinale: 7. Durnford; 10. Harnbam. — P. j^objgoni Pers. On Polggo7ium Convolvulus : 5. W. Dean ; 6. Milford ; 7. Stratford ; 8. Wylye ; 10. Hare Warren. On P. cnuphibium : 10, Britford, — P. oblongata (Link.), On Luzula campestris: 7. Stratford. — P. lyclmidearum. Link. (S.W.). On Lychnis dioica: 10. Alderbury. — P. fusca (Eelbau). On Anemone nemorosa (S.W.) : 5. W. Grimstead ; W. Dean ; 10. Alderbury. — P. bunii (DC). On Cojiopodiwn dmudatum : 5. W. Grimstead. — [P. malvacearum Mont., which was found at Salisbury by Hussey in 1873, is still very common.] — P, adoxm DC On Adoxa Moschatellina : 6. W. Grimstead; Clarendon; 10. Alderbury. — P. buxi DC On Buxus sempervirens (S.W.) ; 10. Hare Warren; Trafalgar. WELWITSCH's AFRICAN FRESHWATER ALG^. 297 Triphragmium uhnarla (Sebum.). On Spircea Ulmaria: 5. W. Dean ; 6. Hurdcott. Phraqmidium fraqariastri (DC). On Potentilla Fraijariastnun (S.W.):'5. W. Grimstead; 6. Pitton ; 9. Compton; 10. Alderbury. — P. sanguisorhiE (DC). On Poterium Sanguisotha: 5. W. Dean ; 6. Pitton ; 7. Durnford Down ; 10. Haruham Hill. — P. violaceum (Schultz). Ou Fiubus (fruticosus) : 5. W. Grirastead ; 9. Compton. — P. rnhi (Pers.). On Pmbus {fruticosus) (S.W.) : 5. W. Grimstead; 6. Hurdcott; 10. Alderbury. — P. subcorticint(m {^chrsnak). On Fiosa canina : 5. W. Grimstead ; 6. Petersfinger ; 9. Dinton ; 10. Race Plain. Endophgllum euphorbia (DC). On EupJwrbia aniygdaloides{S.'^.) ', 5. Clarendon. Gymnosporangiwn davariafor^ue (Jacq.). ^cidium of tbis or of G. confusum Plow, on Cratmjus Oxyacantha : 10. Harnliam Hill. Melampsora helioscopia (Pers.). On Euphorbia Helioscopia{ii.y^.): 6. Laverstock ; 7. Durnford; 10. Standlyncb. — M. lini (Pers.). On Linum cat/utrticnm : 7. Old Sarum ; 10. Harnham. — M. vitellince (DC). On Salix fragilis : 10. Harnham. Coleosporiwn senecionis (Pers.). On Senecio vulgaris : 5. W. Grim- stead ; 6. Winterbourne Earls ; 10. Harnham Hill. Uredo syuiphyti DC On Symphytum officinale (S.W.) : 5 & 6. Clarendon ; 7. Stratford ; 10. Bodenbam. Caoma exionymi (Gmelin). On Euouymiis europmis : G.Claren- don. — ('. iiiercurialis Pers. On Mercurialis perennis : 5. W. Dean ; 10. Alderbury ; Downton. — C. ari-italici Duby. On Arum maculatum : 10. Netberbampton. jEcidium grossularice (Gmelin). On Fiibes Grossularia : 5. W. Grim- stead ; 6. Winterbourne Earls ; 10. Alderbury. — ^S. leucospermnm. DC On Anemone nemorosa: 5. Bentley Wood; 10. Standlyncb Down. WELWITSCH'S AFRICAN FRESHWATER ALGiE. By W. West, F.L.S., and G. S. West, A.R.CS. (Plates 365-370.) (Concluded from p. 272.) XXI. — Lyngbye^e . 1. Symploca Kiltz. (1843). 1. S. MusooRUM (Ag.) Gomont in Journ. de Botaniq. iv. 354 (1890) ; in Ann. Sci. Nat. 7e serie, Bot. xvi. 110-2, t. 2, f. 9 (1892). Oscillator ia Muscorum Ag. Syst. Algar. 65 (1824). (a). Crass, trich. 5*5-6 p. Loanda. Ad terram humidam urbis Loandas, tempore pluvio ; April 1854. No. 161. {(3). Crass, trich. 8-9 p. Huilla. Alga atro-viridis, viscoso-gelatinosa, exsiccata fere peni- cilliformis, inter muscos texta, in maxime umbrosis ; Morro de Monino ; Febr. 1860. No. 181. 298 welwitsch's African freshwater alg^. 2. Lyngbya C. Ag. (1824). 1. L. aureo-fulva, sp. n. L, terrestris, strato spongioso mem- branaceo aureo-fulvo vel flavo ; filis dense intricatis, flexuosis ; vaginis firmis, glabris et lamellosis, flavis vel flavo-brunneis ; trichomatibus jerugineis, ad dissepimenta leviter eonstrictis, apici- bus baud attenuatis ; cellnlis quadratis, nonnunquam diametro paullo brevioribns ; protoplasmate delicate granulato. Crass, fil. 13-5-14-5 jx; crass, trich. 8-5-9'5 /x. Pungo Andongo. Freq. iu liumidis ad dextram flum. Cuanza ex Candumba usque Quisonde ; March 1857. No. 10. "Alga ter- restris, in vivo aureo-fulva vel flavescens, membranis spongiosis latissimis graminuni cjespitibus intertexta, Droseraceis et Erio- caulouaceis solum spongiosum offerens." 2. L. Martensiana Menegh. Conspect. Ahjul. Ew/an. 12 (1837) ; Gomout in A^m. ScL Nat. 7e serie, Bot. xvi. 145-6, t. 3, f. 17 (1892). Crass, fil. 11-14 /x; crass, trich. 8-10 /x. Goluugo Alto. Ad muscos prope fontem magn. ad Ban9a de SobaBango; Sept. 1855. No. 159. Loanda. Cum Symploca Muscorum ad terram humidam urbis Loandfe, tempore pluvio ; April 1854. No. 161. 8. L. ^RUGiNEo-c^RULEA (Kiltz.) Gomout, I. c. 146-7, t. 4, f. 1-3 (1892). OscUlaria ariKiineo-caridea Kiitz. Plujc. Geiier. 185 (1843) ; Tab. Phyc. i. (1845-9), 28, t. 39, fig. ix. Crass, fil. 6-7-7-5 /x; crass, trich. 4-8-5*3 /x. Pungo Andongo. Inter Porphurosiphonem Notarisii prope Condo ; March 1857. No. 9. 4. L. VERSICOLOR (Wartm.) Gomont, I.e. 147, t. 4, fig. 4, 5 (1892). Phormidmm versicolor Wartm. (1861). Mossfimedes. Ad ripas limosas flum. Bero pr. Cavalleiros ; June 1859. No. 175. 3. Phormidium Kiitz. (1843). 1. P. subsolitarium, sp.n. P. filis non in stratum, ad basin affixis, solitariis vel 2-3 associatis, brevibus, leviter curvatis vel subrectis ; vaginis latis, multe hyaliuis et baud facile visis ; tricho- matibus Iffite ferugineis, moniliformibus, vaginam baud complentibus, apicibus non attenuatis ; cellulis ellipticis vel elliptico-oblongis, post division em subglobosis, protoplasmate parietali ; cellula apicali rotundata, calyptra nulla. Crass, fil. 5 /x ; crass, trich. 2 /x. Pungo Andongo. In Batrachospermo ijraciUimo ad lapides sub- mersas in rivulo de Tangue ; May 1857. No. 3. The moniliform cells and the delicate hyaline sheath place this plant in the genus PhonnUlium, although the plants often occur singly. The elliptic cells and subsolitary habit characterize the species. 2. P. angustissimum, sp. n. P. strato tenuissimo membrau- aceo pallide terugineo ; filis flexuosis et tortuoso-intricatis ; vaginis muco hyalino agglutinatis ; trichomatibus angustissimis, laete sevn- gineis, ad dissepimenta eonstrictis, apicibus rectis et non capitatis ; WELWITSCH's AFRICAN FRESHWATER ALG^E. 299 cellulis diametro 2-8-plo (plerumque 4-5-plo) longioribus, proto- plasmate homogeueo. Crass, trich. 0*6-0*8 /x. Mossjimedes. Inter GUwtricJdam cFthiopiciva et Charam sp. in rivo Cavoca prope Cabo Negro ; Sept. 1859. No. 19. Pungo Andongo. luter Nostoc repandum ad rupes editiores vulcan. prope Caboudo tempore pluvio ; Febr. 1857. No. 21. This narrow species is nearest to P. laminosum (Ag.) Gomont, but it is distinguished by its much narrower trichomes, which are constricted at the dissepiments, and its usually much longer cells. 3. P. LAMINOSUM (Ag.) Gomont in Jouni. de Botaniq. iv. 355 (1890) ; in Ann. Sci. Nat. 7e serie, Bot. xvi. 167-8, t. 4, f. 21, 22 (1892). Oscillatuna laminosa Ag. in Flora, x. G33 (1827). Crass, lil. 1-5 iJ.. Golungo Alto. Ad terram limosam post pluvias ; Dec. 1855. No. 166. 4. P. CoRiUM (Ag.) Gomont in Juuni. de Botaniq. iv. 355 (1890) ; in Ann. Sci. Nat. I. c. 172-3, t. 5, f. 1, 2 (1892). Oscillatoria Corixim Ag. Dispos. AUjar. Suec. 36 (1812). Crass, fil. 3-4-4'4 /x. Sierra Leone. Cum Oscillatoria animali ad parietes humid, verticales urbis Freetown freq. latissimis plagis atro-nitentibus parietes obducens ; Sept. 1853. No. 167. 5. P. PAPYRACEUM (Ag.) Gomout in Journ. de Botaniq. iv. 355 (1890) ; in Ann. Sci. Nat. I. c. 173-5, t. 5, f. 3, 4 (1892). Lhcillatoria jjapijracea Ag. Syst. Ahjar. 61 (1824). Sierra Leone. Ad muscos (hepaticeas) humidos in domicil. parietibus verticalibus urbis Freetown frequens tempore pluvio ; Sept. 1853. No. 174. 6. P. Retzii (Ag.) Gomont in Journ. de Botaniq. iv. 355 (1890); in Ann. Sci. Nat. I. c. 175-8, t. 5, f. 6, 9 (1892). UsciHatona Retzii Ag. Dispos. Algar. Suec. 36 (1812). Crass, trich. 9-5-10-5 /x. Pungo Andougo. Ad muscos (Jungermannias) submersas in rivulo Tangue pr. Catete ; May 1857. No. 165. 7. P. AUTUMNALE (Ag.) Gomont in Ann. Sci. Nat. I. c. 187-190, t. 5, f. 23, 24 (1892). Oscillatoria antunmalis Ag. I.e. 36 (1812). Forma tenuis. Crass, trich. 38 /x. Golungo Alto. Cum P. laiuinoso ad terram limosam post pluvias ; Dec. 1855. No. 166. 4. Proterendothrix, gen. n. Plauta; miuutK, primum endophyticae, tum opiphytica; ; fila solitaria vel 2-3 associata, brevia et simplicia ; vagiuje achro^e, hyalime et ampbe, marginibus irregularibus ; trichomata soliiaria intra vaginam unamquauique. 1. P. scolecoldea, sp. unica (tab. 365, figs. 3-6). P. tricho- matibus a^rugineis et liexuobis, apicibus sajpe subattenuatis; cellulis subquadratis vel diametro paullo brevioribus. Crass, fil. 9*5-19 /x; crass, trich. 4-5-5'5 y-. Huilla. In Porphyrosiphone Notarisii, prope lac. Ivantala ; March 1860. Nos. 17 and 18. 300 wklwitsch's African freshwater alg^e. Tliis genus must be placed iu the L>pigbyca; on account of the structure of the sheath, which contains a sohtary trichome. The comparative width of the sheath, its hyaline character with irregular margin, along with the peculiar habit of the plant, characterize the genus. The younger plants (consisting of short filaments of 12-20 cells) are endophytic, occurring between the lamella of the sheath of PorpIu/rosip/io7}. As they increase in size they appear to break through the outer lamellfe of the sheath of the host, and to closely attach themselves to its outer surface by means of their own mucous envelope, which is now considerably broader. 5. OsciLLATORiA Vaucli. (1803). 1. 0. LiMosA Ag. Dispos. Algar. Suec. 35 (1812) ; Gomont in Ann. ScL Xat. 7e serie, Bot. xvi. 210-2, t. 6, f. 13 (1892). Crass, trich. 9-5-15*5 fjL. Sierra Leone. Ad terram et parietes juxta fontes prope Free- town ; Sept. 1853. No. 168. 2. 0. TENUIS Ag. Ah/ar. Decas ii. 25 (1813); Gomont, Z.c. 220-1, t. 7, f. 2-3 (1892). Crass, trich. 6-7-5 //. Ins. Principis. In staguantibus prope Bahia de S. Antonio, ad limum subexsiccantem late caespitosa ; Sept. 1853. No. 169. Mossamedes. Cum Tohjpotriche limhata in stagnis profundis prope Cavalheiros; Aug. 1859. No. 191. 3. 0. ANiMALis Ag. in Flora, x. 632 (1827) ; Gomont, /. c. 227-9, t. 7, f. 13 (1892). Crass, trich. 2-8-3 /x. Sierra Leone. Cum Phormidio Corio ad parietes humid, verti- cals urbis Freetown freq. latissimis plagis atro-nitentibus parietes obducens ; Sept. 1853. No. 167. 4. 0. FORMOSA Bory, Diet. Class. d'Hist. Xat. xii. 474 (1827) ; Gomont, /. c. 230-1, t. 7, f. 16 (1892). Crass, trich. 4-5-5 /x. Loanda. In limo humido urbis Loandte ; April 1858. No. 170. 5. 0. Okeni Ag. in Flora, x. 633-4 (1827); Gomont, I.e. 232, t. 7, f. 18 (1892). Crass, trich. 5-7-7 /x. Loanda. In fonte tepida, sulphate abundanti pr. S. Pedro freq. ; July and Aug. 1854. No. 164. 6. O. angustissima, sp. n. 0. strato expanso terugineo ; trichomatibus angustissimis, laete arugineis, flexilibus, elongatis et intricatis, apicibus non attenuatis nee capitatis, ad dissepimenta non constricta; cellulis diametro l|^-2-plo longioribus, dissepimentis indistinctis ; protoplasmate homogeneo. Crass, trich. 0-6 /x. Loanda. Cum 0. Okeni in fonte tepida, sulphate abundanti pr. S. Pedro freq. ; July and Aug. 1854. No. 164. The specimens of this species are very fine ; it is a totally dis- tinct plant from Phormidium. angustissimwn , though it is of the same thickness. It possesses no sheath, and the trichomes are much firmer and not so tortuose as those of the latter ; its cells also are shorter and more indistinct. WELWITSCh's AFRICAN FRESHWATER ALG^. 301 XXII. — Cham^siphone.e. 1. Sph^erogonium Eostaf. (1883). 1. S. incrustans (Grun.) Rostaf. in liosprawy Sprawozd. Posiedz. Akad. Umiej. x. 282, 304-5, t. v. f. 1-7 (1883). Chammiphon in- crustans Gran, in Rabenb. Flor, Europ. Alj. ii. 149. Lat. 3-3-5 /x; long. 6-10 IX. Pungo Andongo. Epipbyticum supra Zygnema ericetorum ad Podostemaceas in riv. de Cabondo ; Febr. 1857. No. 108 XXIII. — Cystogone^. 1. Dermocarpa Crouan (1858). 1. D. depressa, sp. n. D, cellulis plus minusve aggregatis, multe depressis, irregulariter discoideis ; protoplasma cellular unius- cuj usque sporas 8 formante. Diam. cell. 5-10 /*, altit. 2-7-3-8 /a ; diam. spor. 1-8 /a. Loanda. Epipliytica supra Pithophoram radiantem in aquariis aquae subdulcis insulae Cassanga pr. Morro da Cruz ; April 1854. No. 197. XXIV . — ChroococcacejE . 1. Gl(eothece Nag. (1849). 1. G. coNFLUENs Niig. Giitt. eluz. Al[/. 58, t. i. g, f. 1 (1849). Long. cell. 4-5 /x ; lat. cell. 2 /a. Golungo Alto. Cum Chrooeocco schizodermatico var. badio-piir- piireo, ad rupes juxta riv. Coango; June 1856. No. 139. 2. Merismopedia Meyen (1839). 1. M. glauoa (Ehrenb.) Nag. I. c. 55, t. i.D, f. 1 (1849). Gonium (jlaucum Ebrenb. Diam. cell. 3-8-4-2 /x. Huilla. Inter Utriculariam , Morro de Lopollo ; April 1860. No. 179. 2. M. HYALiNA Kiitz. Phyc. Germ. 142 (1845) ; Tab. Phyc. v. 12, t. 38, f. i. (1855). Diam. cell. 1-5 /a. Huilla. In paludibus exsiccandis ; April 1860. No. 176. 3. Tetrapedia Reinscli (1867). 1. T. aversa, sp. n. T. minutissima, paullo latior quam longior, profunde constricta in medio, sinu acutangulo et aperto, lobis lateralibus late rotundatis, apicibus concavis ; a vertice visis elliptico- oblongis. Long. cell. 9'5-10-5 //, lat. 10-5-1 1*5 //,, lat. constrict. 4-4-5 ju,; crass, cell. 5*5 jx. Pungo Andongo. In stagnis prope Anbilla (Condo) ; Marcb 1857. No. 177. 4. Gl(eocapsa Kiitz. (1843) ; em. Nag. (1849). 1. G. GELATiNosA Kiltz. Phyc. Geuer. 174 (1843) ; Tab. Phijc. i. (1845-9), 15-16, t. 20, f. vi.i; Rabenb. Flor. Kurop. Aly. ii. 39. Diam. fam. 8-5-28 n ; diam. cell. 3-5-5 /x. Tbe integuments were very fine, and occasionally of a yellowisb colour. Ambaca. Alga rupestris, latas plagas rupium cavernae Puri- Cacarambola internarura colore viridissimo tingens ; Oct. 1856. No. 154. 802 WELWITSCH S AFRICAN FRESHWATER ALG.E. 2. G. PUNCTATA Nag. Gatt. einz. Alg. 51, t. i.F, f. 6 (1849). Diam. cell. 1-5-2 /x. Golungo Alto. Cum G. rupestri, ad saxa mollia juxta cata- ractam riv. Coango prope Sange ; Sept. 1856. No. 134. 3. G. RUPESTRis Klitz. Tab. Phijc. i. (1845-9), 17-18, t. 22, f. ii.; Rabenh. Flor. Eiirop. Alg. ii. 47. Diam. cell. 2-3-3-5 /x. Golungo Alto. Cum G. punctata, ad saxa mollia juxta cata- ractam riv. Coango prope Sange ; Sept. 1856. Nos. 134 and 278. 5. Chroococcus Nag. (1849). 1. C. MiNUTUS (Kiitz.) Nag. Gatt. einz. Ahj. 46 (1849). Proto- coccus minutus Kiitz. Phyc. Gener. 168 (1843). Diam. cell. 4-8-5 /x ; diam. fam. 25 /x. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. 2. C. TURGiDUS (Kiitz.) Ncig. I. c. (1849). Protococcus turgidus Kutz, Tab. P/ujc. i. (1845-9), 5, t. 6. Diam. cell. 13-5 /x ; diam. fam. 33 /x. Huilla. In paludibus exsiccandis ; April 1860. No, 176. 3. C. PALLiDus Nag. I.e. t. i.A, fig. 2 (1849). Diam. cell. 7-5- 10-5 /x ; diam. fam. 19-25 /x. Huilla. In uliginosis editioribus prope Humpata, Empalanca et Lopollo ; May 1860. No. 15. 4. C. scHizoDERMATicus West in Joiini. R. M. S. Dec. 1892, 742, t. X. fig. 61-63 ; in Jouni. Linn. Soc. xxx. 275, t. xvi. f. 19 (1894). Var. BADio-PURPUREus, var. n. Var. protoplasmate badio-pur- pureo ; tegumeutis pfene achrois, rarius stramineis, lamellis nume- rosissimis et ut in forma typica discedentibus. Diam. cell, sine teg. 5-5-12-5 /x; c. teg. 26-40 /x. Golungo Alto. Inter Scgtonenia insigne, ad rupes madidas in umbrosis juxta rivum Coango enter Sange et Undelle ; May 1856. No. 5. Ad rupes juxta riv. Coango, crustam viscoso-cartilagiueam fusco-badiam formans. Collematis thallum fingens; June 1856. Nos. 139 and 140. SUMMARY. Floride^ : — I. Batrachospermeffi II. HildenbrandtiaceaB Chlorophyce^e : — III. (Edogoniacese IV. Ulvaceffi V. Ulotrichacefe VI. Chroolepidacere . VII. Cladopboracefe VIII. Pithophoracese IX. Temnogametacefe X. Zygnemacefe XI. Desmidiacefe XII. Vaucheriaceffi XIII. Hydrogastracese . XIV. PalmellacejB Genera. Species 1 4 1 2 2 16 1 2 5 10 1 2 2 4 1 1 1 1 5 20 15 139 1 1 1 1 13 22 WELWITSCh's AFRICAN FRESHWATER ALG-?5. 803 Myxophyce^ : — XV. Rivulariacefe XVI. Sirosiphoniaceffi XVII. Scytonemacefe XVIII. Nostoceffi . XIX. Camptotricbefe XX. Vaginariese . XXI. Lyngbj'eae . XXII. Cliamoesiphouene XXIII. Cystogoneae XXIV. CiiroococcacesB Genera. Species, 3 6 3 9 2 12 2 5 1 1 4 10 5 19 1 1 1 1 5 11 77 300 P.S. — Mr. Hiern has kindly called our attention to a paper by Wel- witsch in the Journal of Travel and Natural History, vol. i. pp. 22-3G (1808), entitled " The Pedras Negras of Pungo Andongo in Angola." In this paper Welwitsch shows that the prolific growth of a subaiirial alga is the cause of one of the main features of the country, as it gives such a peculiar aspect to the mountains that they are known as the "black rocks." He writes that it is "probably a non-described species of the prolific genus Scijtonema, which in that situation during the rainy season generates and multiplies so rapidly that the upper portions of the mountains are covered with it in a very short time Soon after the hot season has set in, at the end of May, when the horizon above the Presidium is generally clear and bright, the black plantlets begin to discolour with the intense heat. They gradually become dry and brittle until they peel off altogether by and bye, after which the rocks lose their sombre black aspect, and reappear in their natural grey or grey-brownish colour before the succeeding spriug." Wel- witsch named this plant Scijtonema chorojraphicuni, and gave a figure which is hardly characteristic. We have described it above as Seyto- nema Myochrous var. choroyraphicum. Mixed with it is a quantity of Dichothrix yypsophila. He states that " the wonderful growth of Seytonema in such immense quantities is not confined to the moun- tain ridge of the Presidium In proof of this fact, I may refer to the damp sandy upper valley of the Cuanza River, where a species of Seytonema is abundant, frequently extending across the wide meadows, closely spread like a net over the soil, intergrown with the other herbs and smaller shrubs. Through its hygroscopic nature it eagerly absorbs the atmospheric moisture during the dewy nights, affording by this means a refreshing protection to the roots of many other and larger plants during the glowing heat of the following day. The growth and thriving of the numerous small phanerogamous plants in these places is conditional on the co-presence of the prolific .S'c(/ton(?Hw." This second "Seytonema'' alluded to by Welwitsch is Porphyrosiphon Notarisii, one of the VayinariecB. A parallel to this phenomenon is found on the sandy heaths of the south and some parts of the north of England. At the drier and hotter periods of the year, thickly-matted sheets of Zyynema 804 welwitsch's afbioan freshwater alg^. ericetorum are to be found extending over wide patches of almost bare sand, round such plants as Drosera, Carices, &c. These interlacing masses have great absorptive capacity, greedily taking up water; it is also highly probable that they protect and render the growth of other plants more possible by regulating the moisture of the surface soil. It is interesting to note that Zygnema ericetorum is found intermixed in small quantity with the Porphtjrosiphon Notarisii which covers such extensive areas in Angola. Description of Plates. All the figures are x 520, except fig. 2, t. 365, which is x 120. Tab. 365. — Fig. 1-2. Pohjchlamydnm insigne, n. gen. et sp. 3-C. Protc- reiidothri.v scolecoidea, n. gen. et sp. 7-8. (Edogonium hiiiUense, n. sp. 9. Closterium peracerosum Gay, var. cethiopicum, n. var. 10. Pleurotcenium sparsi- punctatum, n. sp. 11. Cosmarhun cequinoctiale, n.sp. Tab. 366. — Fig. 1. Micrasterias tropica Nordst., forma. 2. M. tropica Nordst., var. elegans, n.var. 3. 21. tropica Nordst., var. cratisa, n. var. 4. it/. polonica'Wesi & G. S. West. 5-C. M. robusta, n.sp. 7. M. arcuata Bail. var. siibpinnatifida, n. var. 8. Euastrum hinale (Turp.) Ehrenb. var. angolense, n. var. 9. E. subdivaricatum, n.sT^. 10. E. tetragomim, n.sii. 11-12. E. acmou, n.sp. 13. E. acmon v&v. claiisum, n.vav. 14. E. liolosclierum, n.sp. 15-16. E. Ituil- lense, n. sp. 17. E. bimorsuiit, n. sp. 18. E. siibinerme, n. sp. 19. E. sub- personatum, n.sp. 20. Cosmarium Baileiji Wolle, var. angolense, n.var. 21. C. Oocystiduin, n.sp. Tab. 367. — Fig. 1. Cosmarium colonoplwrunt, n.sp. 2. C. 11 elwitscJdi, n.sp. 3. C. centrotapliridium, n.sp. 4-6. Ditto, central scrobiculations. 7. C. ango- lense, n.sp. 8. C. multiordinatiim, n.sp. 9. C. tetrasticlnoii, n.sp. 10. C. te- trastieliuvi var. depauperatum, n.var. 11. C inediogemmatuin, n.sp. 12. C. ligonifor me, n.sp. 13. C. callistum, n.sp. 14. C. pseudotaxichondraml^o\:As\j., var. africanum, n. var. 15. C. huilleme, n. sp. 16. C. viucronatum, n. sp. 17. C. bilunatiim, n. sp. 18. C. meteorotwtinn, n. sp. 10. C. trifossiDU, n. sp. 20. C. (Bthiopicum, n.sp. 21. C. ma.vimum (Borg.) nob., \ax. minor, n.\a.r. Tab. 368.— Fig. 1. Cosmarium africanum, n. sp. 2-3. C. galeatum, n. sp. 4-5. C. Norimbergense Reinsch, forma elongata. 6. C. Iccve Rabenh. var. ?»('«( - 7/u(ni, n. var. 7. C. rt//iHe Racib. var. fl/rtcfuium, n.var. 8. C. submamilliferum, n.sp. 9. C. Portianum Arch. \a,v. orthostichum, Hchmidle. 10. C. concentricum W. B. Turn. var. radiatum, n.var. 11. C. subtriordinatum, n.sp. 12. C. Li- bongense, n.sp. 13. C. repandum Nordst. 14. Xanthidium subtiilohum, n.sp. 15. A', cristatum Breb. var. tropicum, n. var. 16. X.fasciculatum Ehrenb. forma. 17. Staurastrum huillense, n.sp. 18. S. scrobiculatum, n.sp. 19. S. micron West & G. S. West, var. angolense, n. var. 20. ,S'. Gurgeliense Schmidle, var. tropicum, n.\a,v. 21. S. cassidum, n.sp. 22. ,S'. angolense, n.sp. 23. Penium variolatum, n. sp. 24. Closterium pusiUum Hantzsch, var. suhrectum, n. var. 25. Tetmemorus ^fissus, n. sp. 26-31. Ichthyuccrcus angolensis, n. gen. et sp. 32-34. Docidium trigeminiferum, n.sp. Tab. 869.— Fig. 1. Staurastrum IVehcitschii, n. sp. 2. S. Corbula, n. sp. 3. S. Corbula var. pulchrum, n.var. 4. »S'. actinotu)n, n.sp. 5. S. actinotum var. simpler, n.var. 6. S. pentateuchophorum, n.sp. 7. S. tridens-Neptuni, n.sp. 8. S, heteroplophorum, n.sp. 9. S. heteroplopliorum var. latum, n.var. 10. S. Pseudohystrix, n. sp. 11. S. tripodum, n. sp. 12. S. egregium, n. sp. 13. S. cerastoides, n. sp. 14. S. crux-alternans, n. sp. 15-1(). -S'. quadri- dentatum, n.sp. 17. S. areolatum, n.sp. T.^B. 370.— Fig. 1-2. Athroocystis ellipsoidea, n.(:^en. etsp. 3-4. Pgxis2)ora viirahilis, n. gen. et sp. 5-9. Temnogametuin Jwterosporum, n. gen. et sp. ; 7, scalariform conjugation between two specially cut-otf cells; 8-9, lateral conju- gation ; s, f,', spores produced by scalariform conjugation ; I, spore produced by lateral conjugation. 10-17. Camptothrix repcns, n. gen. et sp. ; 10-12, older filaments; 13-17, younger filaments. 18-19. Co>imnnumalatumK\xch.y&x.sub- oblongum,n. var. 20. Staurastrum elegantissi)num Johnson, var. 7-eductum, n. var. 305 THE BERLIN RULES FOR NOMENCLATURE. [The following is a translation of the Rules for the officials of the Ro3'al Botanic Garden and Museum of Berlin which have been issued with the authority of the present staff.] 1. — The principle of priority for selection of the names of genera and species of plants holds good as a general rule ; 1753/54 is regarded as the beginning of the establishment of priority. 2. — The name of a genus is, however, allowed to lapse if it has not been in general use fifty years, counted from the date of its establishment. If the name has, however, been revived in mono- graphs or large floras as a result of following the "Laws of Nomen- clature of the Year 1868," that name is to hold good. 3. — In order to obtain a similarity of form for the denoting of groups, we use the following endings : — The alliances are to end in -ales ; the families in -aeea; ; the subfamilies in -oidecB ; the tribes in -e(B ; the subtribes in -incB ; the endings are to be added to the root of the generic names, as Pandan{iis)-ales ; Ilumex Rwnic{is)-oide(2 : Asclepias, Asclepiad{is)-e(B ; Metastelma, Metastebnat{is)-in(B ; Madi(a) 4. — As regards the gender of names of genera, we go by correct grammatical castom in the case of classical words ; with later names and barbarisms, the usage of the Naturlichcn Pjianzenfamilien is maintained ; changes in the endings or in the word are not, as a rule, to be permitted. Notorious faults in names taken from proper names must be corrected ; for instance, Padimjia is to take the place of the lUdingia of the English, which has been imported by us. 5. — Names of genera which have become synonyms are better not used again in an altered sense for denoting a new genus or even a section of one. 6. — The rule of priority holds good for names of species, provided that no objections have been raised in a monograph against its retention. If a species is removed to another genus, it must retain its oldest specific name. 7. — The author who first named the species, although in another genus, is always to be acknowledged, and his name is therefore to be placed in brackets before that of the author who has removed the species into another genus ; thus, Pulsatilla pratensis (L.) Mill. If an author has himself placed his species in another genus, the bracket is omitted. 8. — As regards the mode of writing specific names, that followed by Linnseus has been introduced into the Botanical Garden 'and Museum. This is to be still observed, and we therefore write all species-names with a small letter, except those derived from the names of persons and those which are substantives (names of genera in many cases still, or at least formerly, in use) ; for example — * Some exceptions, as Conifercc, Crucifercc, UnihcUifertr, Palnur, remain correct. Journal of Botany. — Vol. 35. [Aug. 1897.] \ 306 THE BERLIN RULES FOR NOMENCLATURE. Ficiis indica, Circcea lutetiana, Brassica Najnis, Solanum Dulcamara, Lythrum Hi/ssopifolia, Isachne Battneri, Sabicea Henninfisiana. 9. — In the formation of genera- and species-names from proper names a is added for the genus to those names ending in a vowel or r: i is added for the species. Thus, Glazioua (from Glaziou), Bureaiia (from Bureau), Schiltzea (from Schiitze), Kernera (from Kerner), and Glazioid. Bureaui, Schutzei, Kerneii ; if the name ends in a, we change this vowel for euphony to « ; thus from Colla is formed Colhna ; in all other cases ia or ii is added to the name ; thus, Schiitzia (from Schiitz), Schi'itzii, &c. This applies also to names ending in us, as Mar/nusia, Maijnusii (not Magni), Hieronymusia, HIeronymusii (not Hieronymi) ; in the same way are formed the adjectival forms of proper names, as SchUtzeana, Schiitziana, May- misiana. It is no longer customary to make a difference in the use of the genitive and adjectival form. 10. — In the formation of composite Latin and Greek substantives or adjectives, the vowel which is between the two roots is used as a connecting vowel, in Latin /, in Greek o ; menthifolia is correct therefore, not menthifolia. 11. — We recommend the avoiding of such names as would pro- duce tautology, such as Linaria Linaria or Elvasia elvasoides ; in the same way it is allowable to dispense with priority when it is a question of names which have arisen through obvious errors of geography on the part of the author ; such as Asclcpias syriaca L. (which comes from the United States), Leptopetalum mexkanum Hook. & Arn. (from the Liu-Kiu Islands). 12. — Hybrids are denoted by connecting the names of the parents with x , and preserving the alphabetical order of the species-names; as Cirshun palustre x rivulare ; in the position of the names no notice is taken as to which is male and which female. The double nomenclature for hybrids is not considered admissible by us. 13. — Manuscript names have not under any circumstances a right of consideration, even when they appear on printed labels in exsiccata. This holds good for gardeners' names and for names in sale catalogues. For the recognition of any species a printed diagnosis is required, which may of course appear on an "exsiccata label." 14. — An author has no right to alter the name of a genus or species once given by him, except for very important reasons, as in Rule 11. [While agreeing in the main with the principles laid down in the above Rules, the following observations occur to us : — 1. — With regard to the date of the beginning of priority, we are not clear why the double date " 1753/54" is given. 2. — This rule seems to us open to serious objection. What is meant by "general use"? How many citations are necessary to constitute such use, at what intervals of time, and by what class of author? What is a "monograph" — is it of an order, a genus, or a species? and what flora is to be considered a "large" one? How EXTRACTS FROM BOTANICAL EXCHANGE CLUB REPORT, 1895. 807 is it to be known in all cases wbetlier the reviver of a name in such a work has so acted "as a result of following the Laws of 1868" ? 4. — What is intended by a "notorious fault in names taken from proper names"? Do StUUwjia, Goodenia, Richanlia and Cinchona come in this category ? 6. — The retention of the oldest specific name was not consistently practised by Linnaeus, although he generally retained it. Ethulia divaricata, for example, had been previously called by him Artemisia minima ; and on placing Lemadendron olecefolium Berg, in the genus Protea, he named it P. pubcra. As we have often stated in this Journal, we object to this rule because it would necessitate in many cases the formation of a new combination, and so encumber synonymy. The Berlin authorities themselves, under Eule 11, contemplate various exceptions to this rule. 7. — We think the practice imposed by Rule 7 is unnecessary and cumbrous. 10. — This Eule is far too simple ; it does not provide for cases where the second root-word begins with a vowel, and other exceptions might be taken. -i? t -d n ° lliD. JOURN. BOT.] EXTRACTS FROM BOTANICAL EXCHANGE CLUB REPORT, 1895.* By William H. Beeby, F.L.S. Caltha paliistris L. var. procumhens Beck, Marshy ground. Loch Insh, near Aviemore, v.-c. 96, 15th June, 1891:, Mr, G, C, Druce remarks: — " Certainly an intermediate ( ', palustiis and C. radicans, but not so near the latter plant as some forms I saw in Glen More. As I have stated, I do not think C, radicans is specifically distinct from C. paliistris, and I am not certain how radicans can be separated from var. ptucumbens." — A. Somerville, In the Scottish Naturalist, 1888, p. 210, I gave my reasons, founded on experiment, for con- sidering that the only constant distinction between C. paliistris and C. radicans is to be found in the rooting stem of the latter plant, all the other characters being common to both plants. The most natural arrangement accordingly appears to me to be the following : — Caltha paliistris L. Subsp. I. C. vulyaris (sensu lat.) varr. ad lib. ,, II. C. radicans (sensu lat.) varr. ad lib. This is practically the arrangement adopted by Dr. Huth ii;! his Monoijrapliie (1891), where C. paliistris is divided into two main sections, characterized respectively by the rooting and non-rooting stem. But Dr. Huth letters his varieties continuously through these two sections, so that, when reduced to catalogue form, his primary subdivision entirely disappears, which I think a disadvantage. Forster's original plant is simply a very rare form of the sub- • Issue! June 5th, 1897. X 2 308 EXTRACTS FROM BOTANICAL EXCHANGE CLUB REPORT, 1895. species ii., just as the form of subspecies i. with similar leaves is extremely rare. To continue to make the leaf-form a specific or subspecific character is most artificial, and Watson well remarked of Forster's plant [Cyhele, i. 92) that it may be retained as a book species "in compliment to its author," but that it is no species in nature. I should not hesitate, therefore, to call Mr. Somerville's plants one, or rather several, of the numerous forms of C. radicans. The var. procumbens Beck was published in Dr. Huth's Monograph, and the leaves, which are not figured, are described as " cordate- reniform, crenate or subentire." I scarcely think, therefore, that any of Mr. Somerville's plants can be exactly this variety, if the description is accurate ; one of them has rather coarsely dentate leaves ; in all the leaves are either longer than broad, or about equally long and broad, the latter of course coming nearest to the description. I cannot bring myself to think that Dr. Huth would have used the term "cordate-reniform" except to describe a leaf which was appreciably broader than long, and I think that, speaking generally, the leaves of Mr. Somerville's plants should be described as cordate-orbicular. The above remarks, so far as they specially refer to the plants under consideration, are made on the supposition that they belong to the rooting subspecies. This appears to me probable ; but as persistently non-rooting prostrate forms do occur, I regard it as a matter of opinion and not of fact. Mr. Somerville has shown me a plant with rooting stem from Loch Insh, gathered on the same day ; but the plants sent do not show the character. — W. H. Beeby. Barharea intermedia Boreau. Shirley, Derby, 17th May, 1895. The same plant as was commented on in Bot. Exch. Club Ucp. 1889, p. 244, and 1890, p. 283. Growing here, this plant becomes more luxuriant, and the pods are somewhat less adpressed to the rachis. It is a plant of cultivated ground, not of brookbanks and waysides as B. vulgaris is ; its upper leaves are pinnatifid, its petals are less than twice as long as the sepals, its pod is short-pointed. Specimens agreeing very closely with my plant were gathered in Surrey by Messrs. Marshall and WoUey Dod, and confirmed as intermedia by Svante Murbeck, but pronounced to be B. vulgaris in the Bep. of the Watson Club, 1893-4, and 1894-5, Appendix; so that there seems some variance as to this species between British and foreign con- noisseurs of the genus. — Wm. R. Linton. Among some Barbareas of Mr. Marshall's, which I sent some time ago to Docent Murbeck, there were several which were named by him B. intermedia. Tlie plant mentioned by Mr. Linton is no doubt the one from a bank near Thursley, Surrey ; this much resembles Mr. Linton's plant, the others do not. Tlae Shirley specimens now sent are immature, and descriptions of the fruiting raceme are scarcely applicable to plants in that condition, because the relative proportions of the pods change greatly as they ripen. I do not see the affinity with B. vul- garis, and think that this plant differs chiefly from our ordinary B. prcBcox when in a similar stage of growth, in the pods not being incurved. Barbareas, however, seem to be liable to aberrations of this sort, and I think that ripe fruit will probably show Mr. Linton's EXTRACTS FROM BOTANICAL EXCHANGE CLUB REPORT, 1895. 309 plant to be a form of B. precox. As the latter plant is still culti- vated, it is very likely that there are several forms of it of garden origin. Besides this, Jordan describes three species which are now treated as varieties in Camus' Catalofjne. — W. H. Beeby. Cochlearia danica L,, var. Walton Gaol, Lancashire, April and October, 1895. Having had two different opinions regarding this plant (see Pwport, 1893, p. 401, and 1894, p. 4G4), I thought a further supply might prove of interest to the members. — J. A. Wheldon. I do not see any reason for calling this a variety ; it is an ordinary annual form of the plant. Syme {Knfj. Bot. iii.) doubted whether this species ever bore angulated root-leaves, and my own limited experience in growing the plant from seed would have led me to the same conclusion ; but Mr. Wheldon's specimens show that the radical leaves are occasionally slightly angulated. When the plant assumes the biennial habit, however, the apex of the root- stock usually branches at the end of the first season's growth, and each of these heads produces a tuft of ivy-like leaves ; but these are not the true root-leaves. In the Pieport for 1894, p. 464, Mr. Marshall speaks of a plant from the above locality as being " un- typical" for C. danica on account of the "stalked stem-leaves," &c. I do not know the meaning of this, unless we are to infer that the specimen in Linn. Herb, has sessile stem-leaves. If so, while it may be technically the type, it would certainly be a very uncharac- teristic example of the species as it usually occurs in nature. — W. H. Beeby. Malva moschata L. var. Ramondiana Gren. & Godr. FL Fr. i. 289, where it is described as having " feuilles toutes entieres, dentees." It occurred in a gravelly heathy field near Tilehurst, Berkshire, August, 1895, and from its bright- coloured flowers and nearly entire leaves was a conspicuous plant. Malra moschata is common in the vicinity, but more frequently as the type — the var. laciniata Gren. & Godr. /. c. — "toutes les feuilles divisoes en lanieies etruites." Occasionally the var. intermedia Gren. & Godr. /. c. occurs ; this has "feuilles caulinaires divisees en lanieres etroites; les radi- cales reniformes crcnelees." I have not seen the var. Ramondiana elsewhere. In France it appears to be rare, since Gren. & Godr. only record it from the Bagneres de Luchon, where Kamond's Herbarium is preserved, which I had an opportunity of inspecting a few years back. — G. Claridge Druce. "A very interesting variety of Malva moschata L. This certainly must closely approach var. Ramondiana Gren. & Godr., but I only know this from the de- scription, which is 'feuilles toutes entieres, dentees.' The upper leaves here are certainly lobed." — E. G. Baker. ' Rosa stylosa Desr. var. pseudo-riisticana Crepin. Chctnole, Dorset, 22nd June, 1895. I send specimens of this well-marked rose from one of two new Dorset localities in which I have seen it in fair quantity in recent years, the other being the borders of Piddle Wood, near Sturminster Newton. I think it extremely probable that the form has been produced by hybridization between /i'. systyla Bast, and R. arvensis Huds., though now in some districts (as in the 310 EXTRACTS FROM BOTANICAL EXCHANGE CLUB REPORT, 1895. Teign Valley, S. Devon) it is so abundant as to seem to propagate itself by seed. In the hundreds of luxuriant and abundantly flowering bushes that I have seen I can recall only a single flower that was not pure white, and that might merely have developed a phikish tinge when fading. The flowers of B. systijla are usually pink, though occasionally of as pure a white as those of L'. arvcnsis. In habit li. psendo-rusticana is just intermediate between these two. — W. MoYLE Rogers. Cawpanula rotundifulux L., forma. Limestone, S. of Lough Mask, Co. Mayo, Ireland, 15th July, 1895. A pretty and distinct- looking plant when growing. Mr. H. Groves writes to me: — "The lesson of these specimens seems to me that leaf-characters are of very little value in this species. The larger specimens seem to answer fairly well to var. ImcifoHa of Mertens and Koch." To myself the question of size appears of small importance, depending as it does upon greater or less moisture, at any rate in the present case. — Edward S. Marshall. "Growing the various forms side by side, under equal conditions, seems to be the only means of really finding out whether they be merely states due to situation, or varieties. I suspect that a very considerable number of our cata- logue varieties would, if subjected to this test, disappear from the lists of those who discriminate between the state and the variety. I have gathered similar forms in Surrey, near Haslemere, and else- where ; but have doubted whether any are really varieties. — W. H. Beeby. Sijringa vuhjaris L. Near Egremont, Cumberland, July, 1895. The common lilac has established itself in hedges about 1^ miles east of Egremont very considerably. It forms the hedge for about twenty yards not far from Ulcoats Mill. Between Cote Close and Moss Dalts farms it occupies the hedges in many parts to the exclusion of the thorn for spaces of from five to twenty yards in length in difl'erent fields. It has the appearance of having been bird- sown. — Joseph Adair. Gcntiana germanka Willd. A small-flowered form abundant in a chalk-pit at North Sydmonton, Hampshire, this year, 21st September, 1896. The plants varied considerably in character, and in several cases there was a difiiculty in distinguishing them from robust forms of G. Amarella L. — A. B. Jackson. I could not refer these specimens either to G. f/ermanica or to G. Amarella, and as certain features suggested a hybrid origin, I sent examples to Dr. von Wettsteiu, who, after closely examining the plant, agrees in thinking it a hybrid between the two above species. He arrives at this conclusion because : — "1. It is completely intermediate, morpho- logically, between the two species named. 2. The sterility of the pollen. I could, however, only examine one flower, as the others were going to seed. This one contained 48 per cent, of abortive pollen-grains. 3. The small number of fully-developed seeds. 1 examined three capsules, of which one contained 50 per cent., the second 97 per cent., and the third 88 per cent, of evidently abortive seeds." Dr. Wettstein adds that for a complete determi- EXTRACTS FROM BOTANICAL EXCHANGE CLUB REPORT, 1895. 311 nation it would be necessary to know wbether the plant grows in company with its putative parents. Mr. Jackson has promised to investigate this point, but I may mention that 1 have seen C. (jer- manica Willd. from the locality. (See Ilcport for 1892, p. 379.) — W. H. Beeby. Potamor/eton spcmjanUfulixis Laestad. River Maam, Co. Galway, 5th July, 1895. — W. A. Shoolbeed. " I doubt much this being the true plant of Laestadius, notwithstanding the late Prof. Babington's opinion that it was so (cf. Journ. Bat. 1872, 228). My specimens, gathered by Laestadius himself, differ in many points ; and I think we must, anyhow at present, use Syme's name — P. Kirkii — until a careful study of the plants in .situ is made. In his ' Loca parallela plant.,' in a note on sjutrf/anHfolius, Laestadius observes, ' Sparr/anio natanti e longinquo simillimus. Folia natantia sfepe desuut, tumque nemo sane divinaret, tarn propinquum esse P. natanti, ut dubium sit an ex illo tuto separari possit' (p. 242 (1839))." — Ar. Bennett. "This resembles the Scandinavian plant in the submerged leaves, but differs in the branched stem and in the shape and areolation of the floating leaves; it might be placed under P.jixdtans as a variety, but I would prefer to name it P. Kirkii Syme. Possibly it may be poli/r/oni/olius x natans.'" — A. Fryer. Potamogeton nndulatus Wolf. = P. perfoUatus X crispiis. Sixmile River, above Templepatrick, Co. Antrim, 10th Aug. 1894. Grows in dense masses in the deeper parts of the river, with abundant ffuiting spikes, but no fertile drupes. In shallows of a tributary stream it creeps amongst stones, but in that situation produces only leaves. — S. A. Stewart. "There is a considerable degree of un- certainty as to the precise form which Wolfgang described as P. undulatiis. On such evidence as I have been able to obtain it seems probable that original specimens gathered and named by him are in part P. pralonyns x crispus, and in part P. crispus x per- foUatus. M. J. Baagoe has examined the typical specimens in the St. Petersburg Herbarium, and assures me that this is crispus x praloncjus ; a specimen in my herbarium, gathered by Wolfgang, seems to me to be the same as the Stirling plant collected by Messrs. Bidston and Stirling, which is certainly crispus x perfoUatus. Mr. Baggoe inclines to think that none of our British specimens equal Woltgang's plant, and has sent me drawings of stem-sections of the type and of my var. Cooperi, and of the supposed parents of the two forms, which strongly support his views. I think Mr. Stewart's plant is equal to my var. Cooperi, and perhaps had better be named Potamotjeton X Cooperi = crispus X pierfoUatus." — A. Fryer. Alnpecurus vtriculatiis Pars. Meadow, near Oxford, 13th July, 1895. This grass was growing in fair quantity in a meadow in the neighbourhood of Oxford, in May, 1895. It was not an isolated patch, but thinly scattered about over a space of about 150 yards, and apparently well established. On inquiry from the farmer who occupies the land it proved that he had used a great deal of foreign hay in the year 1893, when the English hay-crop almost entirely failed owing to the drought. The seeds which became separated in 312 EXTRACTS FROM BOTANICAL EXCHANGE CLUB REPORT, 1895. the process of chaff-cntting were scattered about the field in question to improve the next year's crop. The hay was said to have come from Canada. In many of the spikes the lower spikelets had become fleshy and semi-transparent. I do not know whether this Alopecunis is an indigenous Canadian grass; if not, it is a remarkable instance of a plant having twice crossed the Atlantic, and become established through human agency — in one case, if not in both, unintentionally. — L. V. Lester. "Correctly named." — E. Hackel. This is a plant of continental Europe, and is not recorded by Macoun as yet introduced to Canada. — W. H. B. Weinf/aertneria canescens Bernh. Sand dunes by the sea, between Morar Kiver and Arisaig, Scotland, July, 1895. — Fredk. Townsend. The occurrence of this plant in the above locality, which comes within v.-c. Westerness, naturally suggested some enquiry into its recorded occurrence in Ayrshire. So far as I have been able to trace, it is first mentioned by Watson for the latter county in 'Toj). Bot. ed. 1, 1874, where it appears in square brackets. Doubt- less this record was obtained from the Butany of Ayrshire (1872), a list which I have been able to consult through the kindness of Mr. A. Somerville. The record there given is "Dalrymple and Coylton; James Smith in New Statistical Account of Scotland." The Eev. David Landsborough (in litt. to A. Somerville, 10th December, 1895) writes as follows: — "List furnished to New Stat. Ace. by James Smith in 1837. He was in regular correspondence with Sir W. Hooker. J. S. also furnished list of plants of parish of Maybole ; all the plants in Maybole list are, I believe, correct, except Vicia si/lvatica, which is written Lathyrus — doubtless a clerical error, as former plant occurs in abundance in locality given." The Eev. D. A. Boyd writes {in litt. to Ar. S., 10th Dec. 1895), "Smith's parishes are both inland rural parishes, with neither large towns, ballast-heaps, nor tracts of sea-shore." This is all that I have been able to learn concerning the Ayrshire record. In the course of these enquiries it came incidentally before me that Elymus and other grasses had several times been sown on the sands about Arisaig ; and although Mr. Somerville, Mr. Symers M. Macvicar, and others used their best endeavours to ascertain the truth respecting the Weingaertneria, the question of its nativity was still a matter of doubt until Mr. Townsend finally ascertained that it had been sown by Mr. Eneas E. Macdonnell, of Morar, who states {in Hit. to F. Townsend, 31st May, 1896), " The fact of discovering the plant at Toigall has recalled facts to my memory which leave no doubt on my mind that the Weinyaertneria is not indigenous, but was intro- duced direct here, and not by accidental admixture." Mr. Townsend informs me that the grass occurs in plenty on the sand-hills, and it is somewhat disappointing that we cannot claim it as a native here, especially as it is said to occur in Norway in a slightly higher latitude. Although I have given some details of the Ayrshire record, there does not now appear to be any particular reason to expect that it will be confirmed. — W. H. Beeby. 313 SHORT i\OTES. Salix Hybrids. — I believe that S. Lapponum x repem was added to the British list on the faith of leaf-specimens gathered by me beside the Lochsie Burn, in Glen Shee, in 1892, which Dr. Buchanan White agreed with me in believing to be this. The plant has been in cultivation ever since, but did not flower until this year : it proves to be S. Lapponum, pure and simple. Another supposed hybrid [S. Arbuscula X herbacea) from Ben Chaisteil, Argyle, is merely S. Arbuscida with unusually rounded leaves. A third cultivated willow, from the same Argyle station, I now refer with much confidence to S. Arbuscula x nig ricans ; it is fairly intermediate between the parents, with which it grew. — Edward S. Marshall. PoLYGALA austriaca. — On June 10th the Toynbee Natural History Society found Polyr/ala austriaca in a new station, on the downs N.E. of Otford, Kent. — G. L. Bruce. HiERAciUM RiGiDUM Hartm. IN Worcestershire. — Mr. Frederick J. Hanbury has kindly looked at some hawkweeds collected in a railway-cutting near Upton-on- Severn on July 1st, and determines them to be a form of this species. The record is, I believe, new for Worcestershire, but, although the plant occurs at this station in considerable quantity, I cannot feel sure that it may not be a recent introduction. — Richard F. Towndrow. NiTELLA TRANSLUCENS IN BuoKs. — I receutly gathered this hand- some species in the ponds at Burnham Beeches, where it grew in great quantity. I also gathered on Stoke Pogis Common Saf/lna subulata and Cerastiwii quaternellum, and near Taplow Filago apiculata and Lepidium. ruderale. In the ponds at Burnham Beeches I noticed an Utricularia, which I believe is U. major Schmidel {U. net/lectaJjehm.). U. vulgaris and U. intermedia {see Phytologist, n.s. v. 170 (1861) ) have been reported from the same locality, but in the latter case it is probable that a mistake was made. Until flowers are procured, there must be an element of doubt in my determination of the species as U. major, but the aspect of the plant is quite similar to U. major as it occurs in Berkshire. — G. C. Druce. Carex elongata IN Hampshire. — I gathered a tuft or two of this plant near the Blackwater, between Finchampstead and Jouldern's Ford. It was rather more plentiful on the Berkshire side of the stream near Thatcher's Ford. Koripa amphibia is plentiful there ; it is not recorded for the northern portion of Hampshire in Mr. Townsend's Flora of that county. Carex elongata appears td be a new county record. — G. 0. Druce. Note on Anthericopsis. — It is perhaps worth while calling attention to a point arising from a communication by Prof. Engler in his recently-issued " Nachtrag" to parts ii.-iv. of Die Naturlichen Pjianzeufamilien. In the Pjkmzenwelt Ost-Afrik. Theil C, p. 139, he describes a new genus of Liiiacea, which he calls Anthericopsis, and places between the two very closely-allied genera Anthericum and 314 FLORA CAPENSIS. Chlorophytum. In the "Naclitrag" to the Pfianzenfamilien, p. 69, Anthericopsis is assumed (I think rightly) to be identical with Gillettia, a genus of Commelinacca; subsequently described by me in this Journal for 1896, p. 55, t. 355, on a species of Ancilema which seemed to show differences sufficiently striking to allow of generic separation. Prof. Engler, admitting my view of its position, now places Anthericopsis next to Aneilema, distinguishing it by its regular calyx and corolla, and equal ovary chambers. He makes no mention of the difference in the pollen to which I called attention, that of the new genus being round and echinulate, while in AncUcma it is oblong or kidney-shaped. On the other hand, a character is inti'oduced into the diagnosis both in the Pflamenwelt and the PflanzenfamUien which does not exist in the material examined by me ; the petals are described as shorter than the sepals, whereas in my specimens (see fig. and description in Journ. Bot.) they are appreciably larger, nearly f in. as compared with 7 lines. This discrepancy may be due to the withered condition of the petals in the specimens examined by Engler, as it is difficult to restore these very delicate structures in Commelinacecc to their original size and shape. Or it may be that Engler's Anthericopsis Fischeri (in Pjianzenwelt, p. 139) is not identical with my Gillettia sepalosa {Journ. Bot. I.e.), and that there are two, and not a single species only, viz. Anthericopsis Fischeri Engl. [Pjlanzenwelt, I.e.) and A. sepalosa, non A. sepalosa Engl. (syu. Aneilema sepaloswn C. B. Clarke in DC. Monorjr. Phan. iii. 202 ; Gillettia sepalosa Kendle in Journ. Bot. 1. c). The leaves of A. Fischeri are described as circ. 1-1-5 cm. lonyis, 2 cm. laiis, but this measurement for the length is obviously wrong. — A. B. Kendle. NOTICE OF BOOK. Flora Capensis: being a Systematic Description of the Plants of the Cape Colony, Caffraria, and Port Natal {and neiyhbouriny Territories) by various Botanists. Edited by W. T. Thiselton- Dyer, C.M.G., C.I.E., LL.D., F.R.S., Director, Royal Gardens, Kew. Published under the authority of the Governments of the Cape of Good Hope and Natal. Vol. VI. Hfemodoracese — Liliaceffi. London : Reeve. 8vo, pp. x, 563 : 24s. net. Botanists are to be congratulated on having at last in their possession a volume of the work which was intrusted to Dr. Dyer exactly a quarter of a century ago, and which has ever since remained in abeyance. It is issued as vol. vi. of Harvey and Sender's Flora, but considering the extension of place, which now includes the area between the Tropic of Capricorn and the Ocean, and the consequent accession of material, it may more accurately be regarded as the first volume of a new work. It is certain that when the enumeration has proceeded backwards as far as the Fricacea, the earUer volumes which come down to that order will have to be rewritten. But at the FLORA CAPENSIS. 315 present rate of progression this is a matter not likely to trouble any botanist now living. The -whole of the present volume is from the pen of Mr. J. G. Baker, whose name is a guarantee that the British Museum Her- barium has been duly consulted. We are fortunate in having, from the pen of their author, this collection of the numerous papers dealing with South African monocotyledons with which he has enriched botanical literature. The proportion of new species described in the body of the book is not large, but an appendix (also by Mr. Baker) contains numerous novelties which have come to hand during the progress of the volume through the press. Mr. Baker being thus the author of the book, the omission of his name from the title-page is to be regretted. Cataloguers will be compelled to enter the volume under the name of the editor, without even a cross-reference to the man who has done the work. It is not easy to see on what ground this can be justified, while it is certain that it could have been avoided. If it be urged that the Director of the Eoyal Gardens at Kew is ex officio responsible for all tbe publi- cations that issue therefrom, it may be replied that this Flora is "published under the authority of the governments of the Cape of Good Hope and Natal," and, moreover, that Dr. Dyer's name appears nowhere in connection with the eccentric little BuUetin of Miscellaneous Ivformation, which is an official publication of Kew Gardens. It can hardly be in accordance with an official rule, for no such course is adopted with the British Museum publications — the author's name, for example, stands alone on the title-page of the Catalogue of Welwitsch's African Plants, although Mr. Murray contributes an official preface. It cannot be said that the appear- ance of Mr. Baker's name — even were he only a contributor to, and not the author of, the volume — would be unprecedented; for the five pages (out of 711) in which Dr. Dyer enumerated the Central American Cycadacece were held sufficient to justify the insertion of his name on the title-page of vol. iii. of Mr. Hemsley's Botany of the Biologia Centrali-Americana. We trust that in future volumes some means will be taken to recognize the actual authors on the title-page of the Flora. Dr. Dyer has been fortunate in having obtained so much assist- ance that it is a little difficult to see where his editorship comes in. Mr. Baker has written the book : Mr. N. E. Brown has distributed the localities under the difit'ereut regions, and Mr. Bolus has revised his work; Mr. C. H. Wright "has greatly helped in reading tbe proofs" — a task for which one would have thought Mr. Baker competent. The Editor has, however, contributed a preface to the volume, as well as a prefatory note to each part, and the first contains some useful information regarding the more recent of the collections on which the book is based. The twenty-five years' delay in continuing the Flora is attributed to the Director's official duties and the ex- pansion of South Africa, and we are glad (speaking from a botanical standpoint) that these have so far been modified as to allow some- thing to be done. After this there is hope for the Flora of Trojncal Africa and the Guide to Kew Gardens, which, as will be seen in 316 AKTICLES IN JOURNALS. another part of this Journal, have once more formed the subject of questions in the House of Commons. The Enumeration of Chinese Plants will also, we trust, recover from the blight which seems to fall upon so many of the Kew literary undertakings. As we remarked not long since, no greater testimony to the remarkable ability and energy of Sir Joseph Hooker can be given than that which is afforded by the fact that, while Director of Kew Gardens, he found time for most of his work on the Genera Plaittanmi, as well as for numerous important memoirs and monographs and an annual Keport of the Gardens and Herbarium, for which the existing Bulletin is in no sense a substitute. In our notice of part ii. of this volume, we took exception to the brackets in which (in the body of the book, but not in the index) the authority for each specific name is placed ; and we trust that the Editor will see his way to abandon this unnecessary and even misleading practice. Uniformity even in such small matters is desirable, and, considering the numerous changes which have been introduced into this volume, the fact that brackets were employed in the earlier part of the work is hardly sufficient to justify their retention here. The Kew use of a small initial for adjectival forms of proper names is, we are glad to see, condemned by the Berlin rules, as well as by custom and common sense. A new feature is the introduction of the phrase "no specimen at Kew" at the end of some of the descriptions, which seems to justify the inaccurate inference that specimens of all the other plants are to be found there. Some of the abbreviations employed are unusual — such as "Konig and Sims' Ann." ; and we cannot think it right to attribute the species established in Bentham & Hooker's Genera Plantarum to either author individually, as is done when "Acidanthera pauci- flora Benth. Gen. Plant, iii. 706" is cited. Some exception may, we think, be taken to the citation " Eriospermum dissitiflorum Schlechter" for a new species, without some addition of "MS." or "in Herb.," for Mr. Schlechter does not appear to have written the description. These of course are small matters, but from an editor in Dr. Dyer's position we have a right to expect something like perfection. At any rate we have to thank him — on the principle of "better late than never" — for giving his imprimatur to Mr. Baker's work, and we trust that he may live to edit many more volumes of the Flora Vapensis. ARTICLES IN JOURNALS^ Annals of Botany (June). — J. B. Clifford, ' Physiological properties of a Myxomycete Plasmodium.' — E. Sargant, ' Formation of sexual nuclei in Lilium Martarjon: II. Spermatogenensis ' (2 pi.). — G. Massee, ' Monograph of Geoglossem ' (2 pL). — D. T. Gwynne- Vaughan, 'Polystely in Primula' (1 pL). — D. H. Scott, 'New * The dates assigned to the numbers are those which appear on their covers or title-pages, but it must not always be inferred that this is the actual date of publication. ARTICLES IN JOURNALS. 317 instances of spinous roots' (2 pi.). — R. H. Biffen, 'Functions of latex.' — H. M. Ward, ' Peziza aurantia.' — Id., 'The Ginger-beer Plant.' Bot. Centralhlatt (Nos. 24-26). — P. Kuuth, ' Zur Biologic der Bliiten.' — (Nos. 24-27). K. .Friderichsen, ' Zur Keuntniss der Enhi corylifoUi.' — E. Levier, ' tjber falsche Priorititt und Kriicken- namen.' — (Nos. 28, 29). M. Britzelmayr, ' Materialien zur Beschrei- bung der Hymenomyceten.' — (Nos. 29, 30). F. Kulila, ' Ueber Entstebung und Verbreitung des Pbelloderms.' Bot. Gazette (June 28). — R. Tbaxter, ' Observations on Myxo- hacteriacea' (2 pi.). — J. M. Coulter, C. J. Chamberlain, & J. H. Schaffner, 'Life-history of Lilium philadelpldcam' (8 pi.). — H. J. Webber, 'Peculiar structures in pollen-tube of Zandu' (1 pi.). — A. F. Foerste, ' Curious leaves.' — L. M. Underwood, ' Species of Botrychium.' Bot. Zeltuny (July 16). — E. C. Hausen, ' Biologische Unter- suchungen iiber Mist bewohnende Pilze.' Bull, de VHerb. Boissier (July). — A. Franchet, ' Les Saussurea du Japon.' — C. Miiller, ' Symbolic ad Bryologiam Jamaicensem.' — A. Cnabert, ' Noms patois et emploi populaire des plantes de la Savoic' — J. Freyn, ' Orientalische Pflanzeuarteu.' — F. Bucholtz, ' Stellung der Gattung Meliola ' (1 pi.). — F. Arnold, ' Flechten auf dem Ararat.' — -F. Kranzlin, Eulophia Junodiana et E. aarea, spp.nn. — A. Cogniaux, Momordieafascicidata, sp.n. Bidl. Soc. Bot. France (xliii, pt. 9 : June). — M. Gandoger, ' Plantes nouvelles pour la Flore Espagnole.' — A. Magnin, ' Les Arum vidfjare et itcdicum dans le Lyonnais.' — P. Vuillemin, 'Les anachronismes parasitaires.' — E. A. Finet, Oreorchis Faryesiii et O. tmfiuicidata, spp.nn. (2 pi.). — M. Cornu, Cusctda Lehmanniana. — E. Malinvaud, ' Les Kiiphrasia de la Flore Francaise.' Bidl. Torrey Bot. Club (June 29). — J. B. Ellis & B. M. Ever- hardt, ' New N. American Fungi.' — P. A. Rydberg, ' Rarities from Montana.' — Id., ^ Antemmrin dioica and its N. American allies.' — A. M. Vail, ' The genus Phdibertella ' (= PIdlibertia auct). — A. A. Heller, ' Plants from Nez Perces County, Idaho ' (2 pi.). Erythea (May 31). — W. L. Jepson, ' Boschniakia strobdacea ' (1 pl.). Gardeners' Chronicle (June 19). — Dendrobium Victories Begins Lober, sp.n. — (July 10). 'Campanula Balchiniana X ' (fig. 5). — (July 17). Epidendrum Stanhopeanum Kriinzl., sp. n. Journal de Botaniqiie (June 16, July 1). — A. Franchet, ^Isopyrxim et Coptis' (cont.). — C. Sauvageau, 'Les algues marines du Golfe de Gascogne ' (cont.). — (June 16). E. Perrot, ' Sur certaines Gen- tianees aquatiques.' — (July 1). L. Gander, Euphorbia Pepliis et E. peploides [— one species). Journ. Linn. Soc. (xxxiii, no. 228 ; July 1). — G. D. Haviland, 'Revision of Naucleem' (4 pl.). — J. H. Burrage, 'Adhesive discs of Ercilla volnbdis' (1 pl.). — W. G. P. Ellis, 'A Trichoderma parasitic 318 BOOK-NOTES, NEWS, ETC. on Pellia epiphylla' (2 pi.). — W. C. Worsdell, ' Transfusion-tissue in leaves of gymnospermous plants.' — A. J. Ewart, ' Evolution of oxygen from coloured Bacteria.' Malpiglda (fasc. iv.-v.). — P. Baccarini, ' Sulla Genista aetnensis e le Genista junciformi della flora Mediterranea ' (6 pi. : concl.). — C. Avetta, 'Flora crittogamica della provincia di Parma.' — L. Gabelli, ' Sopra un caso assai interesante di sinfisi fogliare.' Nuovo Giom. But. Ital. (July). — C. Miiller, 'Bryologia Provinciae Schen-si Sinensis.' — A. Palanza, ' Osservazioni botaniche in terra di Bari.' — A. Del Testa, ' Flora vascolare delle Pinete di Ravenna.' — E. Baroni, ' Sopra due forme nuove di Hemerocaltis e sopra alcuni Liliwn della Cina.' — L. Nicotra, * Sul genere Fumaria e su alcune forme dello stesso.' — M. Massari, ' Briologia Pugliese e Sarda.' Oesterr. Bot. Zeitschift (July). — J. Hofifmann, ' Zur Kenntniss der Gattung Odontites' (i pi. : cont.). — F. Pax, ' Neue Pflanzen- arten aus dem Karpathen ' (cont.). — J. Bornmiiller, Cahnnaijrostis Lalesarensis Torg. & Bornm., sp. n. — G. Riclien, ' Zur Flora von Vorarlberg ' (concl.). BOOK-NOTES, NEWS, dc. In the House of Commons on June 28th, Mr. Alfred Billson asked the First Commissioner of Works (1) whether steps can be taken to publish without further delay a new edition of the Guide to the Royal Gardens, Kew, which has been out of print for several years, seeing that similar questions had been asked in the House in 1891, 1892, 1893, and 1895, and that in 1892 the then First Commissioner of Works stated that the Guide was almost ready, and that it was hoped to issue it during the summer ; (2) whether it is intended to continue the issue of the monthly Bulletin of Miscellaneous Information in connection with Kew Gardens ; (3) whether he is aware that the number for December last has not yet appeared ; (4) whether only one number has been issued this year ; and (5) whether any progress has been made with the continuation of the Flora of Tropical Africa, the completion of which was authorized by the Treasury in 1891, on the understanding that one volume would be published every two years ; or whether, owing to the non-fulfilment of this condition, the authorization had lapsed ; and in that case will it be renewed ? The First Commissioner of Works (Mr. Akers-Douglas) said in reply : " Owing to great pressure of work at Kew, the Director seems unable to make rapid progress with the edition of the general Guide to the Gardens, beyond the preparation of guides to various departments, ten of which have been recently published and are on sale. The answer to paragraphs 2 and 3 of the hon. Member's question is in the affirmative ; only one number has been issued this year (January). A new number of the Flora of Tropical Africa will be ready next year. Instructions were last autumn issued to the Director to have the work proceeded BOOK-NOTES, NEWS, ETC. 819 with as quickly as possible, and an additional assistant was given him that he might have more time for its supervision." At the meeting of the Linnean Society on June 17th, Dr. D. H. Scott, F.R.S., exhibited original preparations by Prof. Ikeno and Dr. Hirase, of Tokio, Japan, illustrating their discovery of sperma- tozoids in two Gymnospermous Phanerogams, namely, Ginkgo hiluha and Cycas revuhita (cf. Bot. L'entralblatt, Bd. Ixix. nos. 1-2, 1897, and Annals of Botamj, June, 1897). The slides showed the spermatozoids while still in the pollen-tube, before the commence- ment of active movement. In the case of Ginkgo one section showed the two male generative cells, closely contiguous and enclosed in the pollen-tube. The general structure resembles that in many other Conifers at the same stage, e.g. Jiiniperus vin/iniana and Pinus si/lvestris (Strasburger, Hist. Beitriitje, iv. pi. 2). In Ginkgo, how- ever, each generative cell showed a distinct spiral coil, situated in each cell, on the side remote from its neighbour. Another preparation of Ginhjo showed a series of sections across the micropyle, passing through a pollen-tube and its generative cells, the plane of section being in this case approximately parallel to the surface of contact of these two cells, through which four of the sections passed. In the two terminal sections of this series the spiral coil was clearly shown, consisting of about three windings. The spiral is connected with the nucleus of the cell, but whether it is itself of nuclear or cytoplasmic origin is not certain. In the preparation from Cycas recoluta, several pairs of generative cells were shown ; in some cases the pollen-tube enclosing them was intact. The spiral coils in some of the generative cells were sur- prisingly clear, consisting of about four windings. A distinct striation was visible in connection with the coil, probably indi- cating the presence of the numerous cilia described by the Japanese discoverers. The facts admit of no other interpretation than that given by these authors, namely, that in both Ginkgo and Cycas each generative cell gives rise to a special spermatozoid ; the latter by its own movements (actually observed by Dr. Hirase in the case of Ginkgo] no doubt travels from the end of the pollen-tube to the female cell. At the same meeting Mr. Miller Christy, F.L.S., read a paper on Primula elatior Jacq. in Britain. He remarked that this widely- distributed continental plant, though figured accidentally in English Botany in 1799, was not really detected in Britain till 1842, to which time the totally distinct hybrid oxlip (P. acaulis x veris) was, by British botanists, confused with and mistaken for it, as is still frequently the case. In Britain, P. elatior occupies a shai'ply- defined area, divided by the valley of the Cam, with only two outlying localities, so far as Mr. Christy could ascertain. This area covers the two most elevated and unbroken portions of the boulder clay district, the loams and gravels of the river-valleys and the chalk being entirely avoided. The boundary-lines (some 175 miles in length) which had been traced by Mr. Christy with precision were, in consequence, very sinuous. They enclosed together about 820 BOOK-NOTES, NEWS, ETC. 470 square miles, over which area the oxlip flourishes in immense abundance in all old woods and some meadows ; while the primrose (which grows all around) is entirely absent. Along the dividing line between the two, which is very sharply defined, hybrids are produced in great abundance. On the other hand, the cowslip (which grows both around and throughout the oxlip-area) very rarely hybridizes with it. Mr. Christy believed that the primrose was, in this country, gradually hybridizing the oxlip out of existence. He then noticed a rare single-flowered variety of P. elatior, which he proposed to call var. acaulis, and several aberrations, showing upon the screen photographic views of these and of the hybrids, as well as a map of the distribution of the oxlip in Britain. Sir H. H. Johnston's attractive volume on British Central Africa contains a carefully drawn-up list of the plants known to occur in the region (including Cryptogams), compiled by Mr. I. H. Burkill. No new species are described, and there is no bibliography — a somewhat regrettable omission, easily explicable, however, from the necessity of limiting the space taken up by the list, which already occupies over fifty pages. The region has been divided into four sections — 1. Shire Highlands ; 2. Nyasa-Tanganyika plateau; 3. Extreme west ; 4. Upper Zambezi ; and the distribution of each species is indicated. Occasional slips are inevitable in lists of this kind; one such may be suspected in Luffa afiyptiaca, which is included only on faith of a plant collected by Buchanan, a specimen so named in the Kew list of his collection being Momordica foetida. But the work is carefully and, so far as we have been able to test it, very completely done. We have received a batch of accessories compiled by Mr. H. N. Dixon upon the basis of his Handbook of British Mosses. These are, a ^^ Handbook'" Catalogue, Si^^ Handbook'" Label- List of British Mosses, and an Alphabetical Index to Genera (Eastbourne : V. T. Sumfield. London : John Wheldon & Co.). They cost but a few pence each, and afford a readily consulted and almost complete list of our mosses, with the species numbered consecutively throughout : and the student, whether he uses Mr. Dixon's Handbook or not, will find these lists of great assistance to him in his work, be it in the arrangement of his herbarium or the negociation of exchange. The second number of Notes from the Botanical School of Trinity College, Dublin, contains three papers by Mr. H. H. Dixon — "On the role of osmosis in transpiration," "On the osmotic pressure in the cells of leaves," and " On the physics of the trans- piration current." Prof. Perceval Wright contributes various notes on the College Herbarium. We are glad to note that botany received due recognition in the distribution of the Jubilee honours, in the promotion of Sir J. D. Hooker to the Grand Cross of the Star of India. Dr. Dyer contributes a page about Kew Gardens to the Pall Mall Magazine for August. 321 MONOGRAPH of the BRITISH SPECIES of EUPHRASIA. Prefaced by an Epitome of Pkof. Wettstein's Views on the Development AND DiSTBIBUTION OF THE EUROPEAN SpECIES. By Frederick Townsend, M.A., P.L.S. Introductiox. The geuus Euphrasia has of late years received such an amount of attention, and the locaHties of the various forms and species have been noted to such an extent, especially throughout Europe and Asia, that as a result it has been found that the species are remark- ably restricted to areas of distribution. It is still more remarkable that the areas of closely-allied species are not found to intersect or overlap. Among such species are E. Tatarka Fisch., E. pectinata Ten., E. stricta Host. They are closely allied, but their areas are distinct, and do not overlap. E. Salisburi/cnsis Funk, is closely allied to E. Ilhjrica Wetts., but the former does not occur within the area of the latter. On the other hand, take E. minima and E. stricta, E. nemorosa and E. borealis. The first two are remotely allied, but the area of the first is found within the area of the second. The latter two are also remotely allied, but the area of the one intersects the area of the other. Intermediate forms may and do occur, but they are the exception and not the rule. The botanist is therefore forced to recognize that certain forms have become and are more or less stable, and to such an extent that they may be treated as permanent enough to constitute and be reckoned and described as species. In this paper I propose to preface a description of the species indigenous to the British Isles by notes on the various organs, and on the history of the evolution, formation, and distribution of the species as given in Prof. Wettstein's monograph of the genus. No one has done more towards the elucidation of the genus than Prof. Wettstein, whose monograph exhibits great sagacity, great ability, united with the most careful and wide observation. He has culti- vated many of the species, has sifted records, examined herbaria, and elaborated the synonymy. He has shown that while that close observer M. Jordan recognized several distinct species which western botanists were not acquainted with, he gave new names to some which had already been recognized and named by earlier botanists. The adoption of M. Jordan's names by recent observers has led to considerable confusion, and contributed to induce many to believe that the species so run into one another as to makp it impossible and even a waste of time to enumerate and describe them. As instances I may refer to three marked species to which M. Jordan gave new names, but which Prof. Wettstein has shown to have been already known and named. These are — E. majalis Jord. = E. pectinata Tenor., E. ericetorum Jord. = E. stricta Host., E. puberula Jord. = E. Tatarica Fisch. I have done my best to put the reader in possession of the salient features of Prof. Wettstein's views, and of his methods of reasoning, Journal of Botany. — Vol. 35. [Sept. 1897.] v 322 MONOGRAPH OF THE BRITISH SPKCIES OF EUPHRASIA. but I would refer botanists to the monograph itself for the con- sideration of the subject in all its bearings. We have only eleven or twelve indigenous species, but to explain the phytogeny of these I find it necessary to review most of the European species with which our own are so intimately connected. This will more easily be understood when it is taken into account that we have in our indigenous species representatives of all the European groups adopted by Prof. Wettstein.* The monograph is written in German, and many may not have access to it, hence my excuse for an attempt to deal with this somewhat difficult subject. Part I. Morphology, Evolution, and Formation of Species. In the first paragraph of the monograph Prof. Wettstein gives us an insight into his method of working. He there states that it is by deep study of the areas of distribution of individual forms that a knowledge of the history of their evolution is to be obtained, and later on he says again that the best way of gaining an insight into the history of the development of the forms of a polymorphous group of plants is to study the geographical range of each individual form. Having sufficient data as regards the European forms, he has found it possible to define their areas of distribution. With regard to extra-European forms he has not attempted a similar study, as we do not as yet possess sufficient data for the purpose. For the determination of species Prof. Wettstein has had special regard to their phytogeny or race-history, as well as to their stability and distinctness of character ; he notes that the development of species has been so varied that they are neither equal in rank nor in age ; i. e. that their development has occurred in different ways and at different epochs. A feature in the monograph is that varietal names are not multiplied. The way in which the species vary is noticed, and the varietal names given by authors in their descriptive works are alluded to and sifted. Elementary Organs ; the Epidermis and its Processes. — Prof. Wettstein estimates the character of the hairs to be of great specific importance in this genus ; much more so than I had deemed them to be. They are found on the stem, the leaves, the bracts, the calyx, the corolla, and the capsule ; they are of two kinds, viz. glandular and eglandular. The eglandular hairs may consist of one or of several cells placed end to end, and the hairs gradually narrow to a point ; they are found on the stem, leaves, bracts, calyx, corolla, and capsule. In many cases where they may seem to be absent it will be found that they are one celled, and so reduced in size as to be perceptible only through a lens. The glandular hairs are also of two kinds. They may consist of one cell tipped by a gland, or of several cells placed end to end, the last tipped by a gland, and this distinction is of great importance. The third kind * It is a matter of considerable satisfaction that the groups proposed by me in a former paper on Enphnisia (Joiini. Bot. 1884, jip. 161-168), though more numerous, naturally fall into those adopted by Prof. Wettstein. MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. 823 of process is of little specific importance ; it consists of shield-like sessile glands found in all the species, especially on the under sides of the leaves and bracts. The Root. — When the seed germinates, the primary root soon emits smaller secondary roots in acropetal order, which at first, though near together, are at regular distances apart, but later on other roots intervene, which destroy any appearance of regularity. Both the main root and the secondary ones of all the annual species are, taken as a whole, small, and occupy but a small area. Hairs on the roots are few ; a ring of hairs is produced on the young radicle soon after germination, and there are a few hairs at the root-tips and on the haustoria. The character of the organs termed haustoria is of special interest. They appear on the secondary roots soon after the seed has germinated, but later on may occur also on the main root ; they consist of a special discoid-like exo- genous growth, which attaches itself to the roots of the plants on which the species are parasitic, and from which nourishment is derived. The roots are usually those of grasses and sedges, and unless these are present haustoria are not produced, growth becomes arrested for lack of parasitic nourishment, and though the plant can grow stem, root, and a few leaves, it seems unable to produce flowers and fruit, and eventually perishes. L. Koch has written on the haustoria of Euphrasia in Pringsh. Jahrh. f. Wiss. Bot. xxii. 1891, and references to other observers on the parasitic growth of lihinantliacecB will be found in Prof. Wettstein's Monnrjraph, p. 11. Prof. Wettstein has traced the growth of cultivated E. Rost- koviana on the roots of Poa nemoraUs and P. annua, and on Agrostis vuli/aris, on which plants the parasite thrived; he could not succeed in bringing the parasite to perfection on Hulciis mollis or on Cijperacete. He was only once able to trace the parasitic growth of E. Salishurgensis on the roots of a Carex, and in culture he succeeded in bringing plants to perfection on the roots of Carex alba. I myself traced the growth of the haustoria of E. Scotica on the roots of Ci/peracea ; the species were Carex flava, C. panicea, C. fulva, C. i/laiica, and C. pulicaris, but I was unable to trace on which of these the plant was parasitic. The Stem is usually branched, but in some species it is simple. It is simple or branched in all British species. The position and the wealth of the branches on the stem is of specific value. The stem is green, or is often tinged with purple or red ; it is more or less clothed with jointed recurved hairs, and in some species with glands and glandular hairs; the character of these hairs and glands has already been treated of. The branches are subopposite ; they are simple, as in E. brevipila, E. (jracilis, E. carta, &.C., or compound, as in E. nevwrosa. [E. Eoulaensis seems to be usually unbranched.) Leaves. — The cotyledons are, in all the species, simple, small, rotund or egg-shaped, and entire. There is a remarkable di£ference between the greater or less hairiness of these ; in E. liostkoviana, which is a very hairy species, the cotyledons are hairless or nearly so. The leaves are usually opposite, though the upper pairs are often y a 824 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. not strictly so ; they are always toothed, and are usually narrower than the bracts, and have a narrower base ; the lowest pair usually have but one tooth on either side, the next pair two teeth, the number of teeth increasing in the upper series, the uppermost pair usually having the same number as the lowest pair of bracts. The teeth of the leaves and bracts vary in number, position, form, and furniture, and afford valuable specific characters. The teeth of the leaves are usually blunter than those of the bracts, and the greater the number of teeth the broader the base of the bract. The number of teeth varies from one to ten. The edges of the leaves and bracts are very frequently recurved. The upper bracts are commonly more plentifully furnished with glandular hairs in the glandular species. A secretion of carbonate of lime is frequently found on the upper surface of the leaves and bracts ; I have seen it abundantly in E. Scotica. The bracts are morphologically and anatomically similar to the leaves. Prof. Wettstein is of opinion that the species with fewer teeth represent the older forms. The Flowers are always solitary in the axils of the bracts. The peduncle in all the European species is so short as to merit the term subsessile. In some extra-European species, as in E. Zelandica and E. cuneata, the flowers are distinctly stalked. The Calyx is always four- toothed, the teeth varying little in form, except in breadth, length, and termination ; they are more or less acute, and they are often awned. In some species the calyx increases in size by growth after flowering. It does so in E. lati- folia, and in K. pectinaUi, &c., the furniture of the calyx is very similar to that of the bracts. The position of the fifth or abortive tooth is probably next the axis. The Corolla. — This organ varies considerably in size, though not much in form, in our native species. Prof. Wettstein places the European species in three groups, the first two of which — GrmuU- flurm and FarviflorcB — are distinguished by the comparative size of the corolla. In the latter group there are species which have an intermediate-sized corolla, and the physiological character of the flowers of these differs from that of the rest of the Parvijionr as well as from all the species in the GrancUjior^ a -i 3 e K -i a «a C '^^ 3 A, e 2 a 1 t 1 IS a ? i 1 Euphrasia, Sect. Trifida. Subsection I. includes all the European species ; it is divided into three groups, viz. Group I. Parvijiora ; Group II. Grandifiorce ; Group III. AnfjustifoUa, ; and as all these are represented by our indigenous species, I propose to take into consideration each group in order. Section I., Eueuphrasia; Subsect. I., Semicalcarat^ ; Group I., Parviflor-e. This group includes thirty-three species, of which nine are British. These thirty-three species are spread over Northern Europe, Asia, and America. The adjoining Plan shows the distri- bution and connection of the most important of these species at a glance. Plan showing Areas of Distribution. 330 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. The species may be divided into three series. Series I. comprises E. pectinata, E. Maximowiczii, E. Tataiica, E. stricta, E. piimila, E. borealis, -whicli, among other distinctive characters, have com- paratively larger flowers. Series II. comprises species having comparatively smaller flowers ; they are, E. ccerulea, E. nemorosa, E. vnUtifolia, E. Americana, E. carta, E. occidentalh, E. Canadensis ? , E. latifolia, E. Foulaensis, E. mollis, E. Oakesii, E. gracilis, E. Li- hiirnica, E. Cehennensis, E. minima, E. Tatrce, E. Willkommii, E. Scotica. Series III. comprises species which have a morpho- logically more isolated position ; they are, E. hirtella, E. grandi- flora, E. Jaeschkei, E. Regelii, E. drosocalyx, E. pulchella, E. micrantha, E. hrevipila, E. tenuis. We will first take into consideration Series I. In the Plan we see how isolated are the areas of E. pectinata, E. stricta, E. Tatarica, and E. borealis, all nearly related. We see the area occupied by E. Maximowiczii distinct from that of E. Tatarica, but the one touching the other. E. pumila and E. stricta are similar examples. The formation of all these species Prof. Wettstein con- siders to have been due to climate, and not to hybridity. The wide distribution of Parvijiora, from -Japan to Spain, points to a time very far back, viz. to the tertiary epoch, when a group of species of which the present are representatives, altered or un- altered, occupied an extended area, but reduced in dimension in Europe by the post-tertiary ice age. E. Tatarica occupies a similar area ; it extends in Asia to 70°, but has a reduced area in Europe. If we suppose E. Tatarica to have been the parent species, much light will be thrown on the connection and distribution of the whole group. In tertiary times it extended from East Asia to Europe. During the glacial epoch its northern range was diminished, but later on, viz. after the last glacial period, it advanced again north- wards. During this latter epoch climatic influences split the species into three — E. pectinata in the Mediterranean region, E. stricta in the Baltic, and E. Tatarica in Central and East Asia from the Black Sea to the Inkolan Mountains, occurring also in France, Italy, and Switzerland ; while in the Pacific, in the Japanese Islands and opposite coast a new and allied species, E. Maxi- moiciczii, was evolved. The special climate of England and Scotland and adjoining islands brought E. borealis into existence. The isolated position of E. Tatarica m Italy, France, and Switzer- land betokens a former wider range. The present southern range of E. pectiyiata and its absence on the north coast of the Adriatic point to a northern ancestor driven southwards by severity of climate. Thus, at the end of the tertiary epoch some of the members of the group we have been considering had been formed, and some have since been formed and fitted to the areas which they inhabit, and their rank as species is equal ; these species are, E. pectinata, E. Tatarica, E. Maxiiiwwiczii, E. stricta, E. pumila (this last derived from E. stricta at a later date), E. borealis. The ancestor of these Prof. Wettstein proposes to name E. palcEO-pectinata. MONOGRAPH OF THE BEITISH SPECIES OF EUPHRASIA. 331 Series II. contains eighteen species (see p. 334), characterized as having a comparatively smaller corolla. The relationship of these is more complicatetl. Their areas have a wider ex- tension east and vs^est and nearer to the North Pole, bat they do not reach so far south, circumstances which point to their representatives having an extension, since the tertiary period, over the northernmost portion of the area occupied by the genus, diminished in the north during the ice age, but later on again spreading northwards and occupying isolated and usually mountain areas. It is self-evident that the ancestral species must have been widely distributed in a northern and circumpolar area. The existing species K. latifolia now alone occupies such an area, and it is morphologically and geographically related to the species under consideration. From a parent type similar to E. latifolia sprung, in connection with the dispersion over Europe which followed the post-tertiary ice age, E. curta and E. nemorosa, also the two local species E. occidental is and E. Cebenneiisis ; after the same dispersion there remained on the mountain ranges of Middle and South Europe progenitors from which, fitted to local circumstances, sprung E. Willkommii, E. minima, E. Tatrte, and E. Liburnica. In Northern Europe, in a climate similar to that of the high mountain ranges of South Europe, E. Scotica, so similar to E. winiwa, had its rise. In the Shetland Isles, and the Faroes, &c., we have E. Foulaensis, so nearly related to E. latifolia. In the extreme west we have E. Americana, so nearly related to E. nemorosa. In the extreme east of the area of E. latifolia we have E. mollis, E. multifoHa, and E. Oakesii, similarly derived. As regards E. gracilis and E. carulea, we must seek some other origin than that of climatic influence. It has been already observed under the head of "Evolution or Formation of Species" that E. cccrulea and E. curta, though their areas are now isolated, have an analogous origin to that of E. Rostkoviana and E. montana, and there are reasons in favour of a similar origin as regards E. (/racilis. This species occurs within a portion of the area occupied by E. neinoralis and E. curta, and it flowers earlier than either of these ; on the other hand, it is morphologically distinct from both. The conclusion Prof. Wettstein has come to is that E. f/racilis already existed at an earlier epoch and before E. ncmorom and E. curta were differentiated, and that it was the ancestor of a late-flowering species from which both E. nemoralis and E. curta had their origin. The ancestor of Series II. Prof. Wettstein proposes to call E. palao- netnorosa. Reverting to E. latifolia, whose ancestor we have learnt to, look upon as the parent of the series under consideration, we see that it is morphologically and geographically allied to E. Tatarica, and consequently to the ancestor of the E. pectinata series, which we have named E. paltEo-jiectinata. Now the old type of E. Tatarica had a very wide range, and we may rightly conclude that it was the origin of the greater number of the species in the group Parvijiora. This type Prof. Wettstein proposes to name E. pala:o- Tatarica ; hence this more ancient form was the parent of the two 832 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. series we have been considering, viz. Series I. E. fal(eo-j)cctinata, and Series II. E. palao-nemorosa : the former comprisiiig species with flowers comparatively larger and fitted both for cross- and self-fertilization, but for the former alone at the time of the opening of the flowers ; the latter comprising species with a more northern range, and with flowers comparatively smaller and fitted for self-fertilization, but in which cross-fertilization is not excluded. Series III. — I pass by E. (/rand (flora, E. niicrantha, and E.pul- chella as having less connection with British species, to consider those species of the group Parvijlora which have, in common, glandular hairs on the leaves and calyx, and which probably have a hybrid origin. The species are six in number, viz. E. kirtdla, E. drnso- calyx, E. Jaeschkei, E. Regelii, E. hrevipiia, and E. tenuis, but only one — E. hrevipiia — is British. E. hirtella is a peculiarly marked and distinct species. It has a very wide distribution, similar to and perhaps even wider than that of E. Tatarica ; this fact, taken together with its absence in South Europe, except in small and isolated areas, in the Pyrenees, South-Avest Alps, the Balkan Peninsula, and the Siebenbiirger, point to this as a typical repre- sentative of those species, the area of which, though widely extended in tertiary times, was reduced in Europe during the post-tertiary glacial epoch. We therefore look upon E. hirtella as an old and unaltered connection of E. palcco-pectinata. E. hrevipiia, the only species which is British, comes morpho- logically near to the E. palao-pectinata series, but it has glandular hairs. May it be a hybrid between E. pectinata and E. hirtella, or between E. stricta and E. hirtella, as these species are now found in company in the Southern Alps ? But E. Inrtella is not found in Northern Europe, and Prof. Wettstein thinks it improbable that, having such an origin, E. hrevipiia could have spread northwards, or that it was a hybrid between E. hirtella and any member of the E. pala;o-pecti)iata series. The supposition that it had a more or less distinct origin in the south from that which it had in the north, and that two forms so similar were originated that they cannot now be distinguished one from the other, is also improbable. A more probable supposition is that E. hirtella was not one of its parents, but that it is a hybrid between E. Ptostkoviana and E. stricta. There can be no doubt that it had its origin far back in time, as is betokened by its widely-extended area, also by the occurrence in the south of the closely-allied species E. tenuis, which has the same relation to E. hrevipiia as E. montana has to E. Bostkuvlana, and E. ccBVulea to E. curta. Scheme III. shows at a glance the phytogeny of the species contained in the group ParvifiorcB. MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. 333 Scheme III. K. hirtelUi, s. 1 E. RostJcoviana, s. 1. E. versicolor Kern. E. Schlagintweitii, s. 1. Section I., Eueuphrasia; Subsection I., Semicalcarat^e ; Group II., Grandiflor/e . There are twelve species in this group. The species are, E. Hhnalai/ico, E. Schlariintweilii, E. Roskoviana, E. campestris, E. mon- tana, E. paucifoUa, E. petiolaris, E. Kerncri, E. incta, E. versicolor, E. alpma, E. Christii. Their distributiou betokens a connection with the E. pectinata series, and so does the zenogarnic character of the flowers. The areas they occupy are to be found in the southern portions of the area occupied by that series. Morphologically seven of the species are distinguished by being furnished with glandular hair.s, and of these we have in the British Isles only one repre- sentative, viz. E. Eostlwviana.--'- It is interesting to find that E.. paucifoJia has a similar relation to E. Schlafiintweitii or E. Hivialaijica as E. montana has to E. Host- koviana. E. Eostkovinna occupies a Mid-European area ; the other three species are found only in the Himalaya. The morphological character of all these betokens near relationship; possibly they have sprang from an ancestor which formerly occupied a wide range over Eastern Asia and South-west Europe. E. petiohnis is a mountain species occupying an area between that of E. Uost- knviana and the Himalayan species, and may possibly have a similar origin. 7'.'. conipcstris doubtless sprung from /'.'. liostkoriana. Of the eglandular species, which arc five in number, we have also only one representative, viz. E. Kerncri. As far as our present knowledge goes, these five species only occur in South-west Europe. * Unless E. campestris Jord. can be reckoned as indigenous. See the remarks which follow the descriptions of E. liostkoviana and E. camjtestris. 334 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. Prof. Wettstein thinks that, being so nearly related, they have their origin from an ancestor which once had a wider range, and that further research may extend the range of one or other of these existing species. Scheme IV. shows the phytogeny of the Grandi- Jlora. Scheme IV. Parent Species. Eecent Species. E palcBo-RostJuvzancv? E .jjalceo -alpiruv K. tiostkoyux na.s Section I., Eueuphrasia; Subsection I., Semicalcarat^ ; Group III., Angustifoli^e. This group includes ten species, viz. E. Porta Wetts., E. Salis- buir/ensis Funck, E. Illyrica Wetts., E. tricnspidata L., E. cuspidata Hort., E. Dinarica Beck (Murb.)., E. italica Wetts., E. Stiriaca Wetts., E.japonica Wetts., E. insi(/nis Wetts. With the exception of the two last-named species, which are natives of Japan, the species of this group have a remarkable distribution, east and west in South Europe and in isolated portions of North Europe. The Japanese and European species are doubtless closely allied, but no representatives of the group occur at the present in any intermediate area. As regards the European species, they represent two morpho- logical series : the first includes E. tricnspidata, E. cuspidata, E. Dinarica, E. Stiriaca, E. Italica ; the second includes E. Salis- burgensis, E. Porta, and E. Illyrica. Putting aside E. Stiriaca and E. Porta, which are quite local and of hybrid origin, it is here again most remarkable, as has already been noticed with regard to species in the group Parvi flora, that the areas of the more nearly related species do not intersect, whereas those of less closely allied MONOGRAPH OF THE BBITISH SPECIES OF EUPHRASIA. 335 species do intersect or occupy portions of the same area.* From this we may conclude that the species of each series had each a common ancestor, tlie first of which the Professor names E. tri- cuspidata s. 1., the second E. Salisbiuyensis s. 1., and he thinks that the ancestor of tlie first series was older than that of the second, and that the latter was descended from the former, and for the following reasons : — The distribution of E. tricuspiilata s. 1. is such as would betoken its existence in the tertiary epoch ; it has a con- siderable east and west extension in South Europe, and is found in the mountains of the South Europe peninsulas ; it is morpho- logically nearer to the Japanese species than is E. Scilisbun/ensis ; it exhibits in its descendants a greater variety of forms or species, thus betokening a greater lapse of time for their development ; lastly, the flowers of E. tricuspiilata s. 1. are larger and are fitted for zenogamy, while the flowers of the second series are autogamic. Scheme V. Parent Species. Eecent Species. E.PalcBO-tncujpidO'Ui^' EJaponica,s.h. E.msigniss.l. •E.alpina, \ » Eiialisburgensis.s. I. E. tnciispidctior s. I. To repeat — E. tricuspidata s. 1. at the end of the tertiary epoch bad its extension in the mountains of Mid and South Europe ; this type also extended to East Asia. The glacial epoch then broke up the connection and diminisbed its extension in the northern portion of its area, and at the same time brought about the development of E. Salisbuninisis s. 1. fitted to resist the severity of the climate. At the end of the last glacial epoch, under more favourable conditions E. tricuspidata spread from the plains of South Europe back into the valleys of the neighbouring mountains, also into the Apennines See Prof. Wettstein in Oexterr. Botan. Zeitschrift, 1893. 386 NOTES ON NAUCLEE^. and the Spanish mountains, bringing into existence the several species fitted for the areas in which they are now found. E. Salis- burgensis, fitted for a colder chmate, spread in all directions, and has maintained an existence in isolated areas up to the present day in the mountains of South Europe, Mid-Europe, in Ireland, Norway and Sweden, in the Pyrenees, and the Carpathians. The only species immediately related to E. Salishuryensis is E. Illyrica, which occurs in the north-west of the Balkan Peninsula ; its relation to E. Salishurgensis is very close. Scheme V. (p. 335) exhibits the phytogeny of the Angustifolia. (To be continued.) NOTES ON NAUCLEEiE. By James Beitten, F.L.S. In a recent number of this Journal I felt it necessary to criticise somewhat severely a monograph of a genus of Bnbiacea; lately issued by the Linuean Society. No greater contrast to the slipshod and slovenly "revision" of Pentas could be found than is presented by Mr. Haviland's careful and scholarly monograph of Nmicleea;;'''- and it is almost incredible that both sliould have been issued by the same Society within a few months of each other. Every omission which characterized Mr. Scott Elliot's monograph of Pentas is supplied by Mr. Haviland in his revision of Naucleea, with the result that an important contribution has been made towards a monograph of a large and difficult order of plants. While arranging the NaucleecE in the National Herbarium in accordance with the monograph, I have made a few notes which I propose to put on record. This is the more desirable because Mr. Haviland, as it seems to me, has hardly done justice to the material placed at his disposal, although he duly examined the specimens therein contained. I must, however, preface my remarks by saying that, as a whole, the work has been excellently well done, and that my criticisms deal merely with points of detail. The Linnean Society may be congratulated on the prompt publication of this and the other papers issued in the same number of the Journal — a pleasing contrast with the delay which has lately characterized its proceedings. There is an absence of the extrava- gance in style of printing which has sometimes been manifest, and although there is still room for improvement in the editing, the papers in the present number seem to have been read with reason- able care. In an introduction of twenty pages, Mr. Haviland deals with the nomenclature, characters, classification, and distribution of the group in a way which shows he has a complete grasp of his subject. * "A Eevision of the Tribe Naucleea," by G. D. Haviland, M.A., M.B., F.L.S. Journ. Linn. Soc. xxxiii. pp. 1-94, tt. iv. July 1, 1897. NOTES ON NAUCLEE^. 837 He has paid much attention to the early history, and the varied information hrought together under the first of the ahove headings is full of interest. One or two points, however, require correction or amplification. For instance, he says: " There is a specimen o^ Mitrai/i/nu parcifulia named [NaiicJea oriental is] in the Banksian Herbarium, and referred to by Gaertner in 1788, De Fructihus, i. p. 151. Mr. Daydon Jackson is of opinion that the name is probably not Linnteus's. The only other specimen in the Herbarium labelled Nauclea is one of Adina tjlobijiora ; and Mr. Jackson thinks the writing in this case is un- doubtedly that of Linnaeus." There is certainly some mistake here, and it is not easy to see how it arose. No one is better acquainted with the handwriting of Linnaeus than Mr. Jackson ; and it is almost impossible to sup- pose that he could have said that the name Nauclea urientalis in the sheet of Adina referred to was written by Linnneus. On both the sheets mentioned by Mr. Haviland the name is in Solander's hand, as may be seen by comparison with the description in Solander's MS. (which, by the way, refers to Natidea Forsteri, thus affording a further illustration of the confused application of the name orientalis, to which Mr. Haviland refers). It is, I think, unfortunate that Mr. Haviland did not consult some one at the Museum about the specimens there, as in some cases we could have given him useful information. For instance, a reference to Plukenet on one of the sheets just referred to would have suggested to one familiar with the Herbarium the desirability of consulting Plukenet's specimens in the Sloane Herbarium. Herein (vol. scii, fol. 19 ; xciii, fol. 9) are to be found specimens of Mitraphio[ilossuin vuhjatum L. Found with the last. This fern has also been recently found by the path leading from Demesne to Much Rock. I apologize if I have failed to give credit for any of the above notes to other observers. I am away from reference-books, and to me they are mostly new. NOTES ON WEST ROSS PLANTS. By E. S. AND C. E. Salmon. The following notes refer to plants found in the neighbourhood of Kinlochewc, W. Ross (v.-c. 105), in Aug. 1896; and are supple- mental to Mr. G. C. Druce's "Contributions towards a Flora of West Ross," in Trans. But. Soc. EdinbunjJt, 1894, vol. xx. part 1, pp. 112-171. As will be seen below, we are indebted to several botanists for the determination of critical plants, and we are also under special obligations to Mr. Arthur Jjcnnett for kind help in many ways. New records for the vice-county are marked with an asterisk. 348 NOTES ON WEST ROSS PLANTS. Thulictram alpinum L. Beinn-a'-Mlmmidli (flowering). Suhidarui (iqiiatica L. Loch Maree ; locb on Feith-an-Leotbaid; Gleann-na-Muice. Two stations given in Mr. Druce's paper [loc. cit.). '•■Rnbus Boijenii Linton. Kinlochewe. — '''R. villicaidis Koehl. Kinlocbewe. — R. pymmidalis Kaltenb. Kinlocbewe ; two stations given by Mr. Druce. Tbe above Rubi were named by Rev. W. Moyle Rogers, wlio remarked on tbe first two species, " tbe first W. Ross specimens tbat I bave seen." Sa.vifraga upposiUfoUa Li. Beinn-a'-Mbuinidli. Noted as " rare " by Mr. Druce ; two stations given. — S. hypnoides L. Beinn- a'-Mbuinidb and Glen Docberty. Also noted as " ratber rare," witb two stations. Fanuissia palustris L. Kinlocbewe ; two stations given. Drosera anylica Huds. X rotundifuUa L. [D. uhovata Mert. & Kocb). Locb Maireannacb ; Locb Clair. L'allitriche haiindata Kuetz. Locb Maree; stream running from Locban-an-Iasgaicb ; near tbe river, Kinlocbewe. Kpilobium ahinefolium Vill. Sliocb. Named by Rev. E. S. Marsball. Included in Mr. Druce's list, witb tbe note, "given in Dixon's list" ["Gairlocb," J. H. Dixon, 1886], "and I bave an impression tbat I saw it on Ben Lay, but it sbould be verified." — '^'E. ana galUdi folium Lam. X palustre L. Sliocb. Named by Rev. E. S. Marsball. CirccBa alpina L. By a waterfall, Carn-a'-Gblinne, Kinlocbewe. — ^'C. alpina L. var. intermedia (Ebrb.). Locb Maree. Mr. Artbur Bennett, wbo named tbe plant, reported: — "Your plant seems to me to be tbe C. intermedia Ebrb. Exsicc. (but according to Meyer, not of bis berbarium). Your specimens seem in leaves, petioles, venation, &c., to agree witb alpina, wbile in size, &c., witb lutetiana. Prabl {Krit. El. Holstein) gives a very appropriate name for it, i. e. C. alpina var. major Hornemann. Most continental Floras seem to regard it as a cross between tbe two species, but Kocb makes a full species of it, as also does Nyman in bis Consp. El. Europa;(B." It is interesting, witb regard to tbe question of tbe bybrid origin, or not, of C. intermedia, to note tbat lutetiana is not known from W. Ross ; Westeruess being tbe nearest county, Mr. Bennett tells us, from wbicb it bas been recorded. (inaphaliuin si/lvaticwn L. Noted as rare by Mr. Druce, and two stations only given ; we found it in many places about Kinlocbewe. also at Torridon. — G. sitpimim L. Sliocb. *Hieracium graniticolum W. R. Linton. Sliocb. Tbis species is recorded from S. Aberdeen [Journ. Bot. 1893, 145), wbere it was first discovered; we cannot find tbat it bas been reported from elsewbere. — *iJ. atratum Fr. f. Sliocb. — *H. seneseens Backb. Sliocb. — H. amjlicum Fr. var. lumjihracteatum F. J. Hanb. Sliocb. — *i?. Leyi F. J. Hanb. Sliocb ; Carn-a-Gblinne, Kinlocbewe. — *iJ. Schmidtii Tauscb. Stream near Kinlocbewe. — H. rabicundum F. J. Hanb. Ben Eay. One locality given in Mr. Druce's list. — *H. rubicundum F. J. Hanb. var. BosweUi (Linton). Stream near Kinlocbewe; Ben Eay. — "'H.aryenteum'Er:. Ben Eay. — -'H. Somer- NOTES ON WEST ROSS PLANTS. 349 feltii Lindeb. Slioch. The above Hieracia were named by the Rev. E. F. Linton. Pyrola minor L. Glen Docherty and A-Ghairbhe. Mr. Druce says this species is recorded in Top. Bot. " doubtless on the authority of Lightfoot, who records it from Little Loch Broom. Dixon in- cludes it in his list." — P. secmula L. Carn-a'-Ghliune. Gentiana cauipcstris L. River bank, Kinlochewe. Mr. W. H. Beeby reported on specimens sent, " apparently somewhat abnormal forms of G. cawpestris." Mr. Druce gives a single station. Euphrasia hrevipila Burm. & Gremli. Kinlochewe. Named by Mr. F. Townsend. Not recorded in Mr. Druce's list, but it seems probable that it may be the plant he records as " E. o^ficinnlis L., var. Piostkoviana Hayne, f. horealis Townsend" from several places, as Mr. Townsend (Joum. Bot. 1896, 444) says, "it remains to be determined whether E. borealis is a distinct form, or whether it should be referred to E. hrevipila." — '''E. Scotica Wetts. (= palu- ilosa Towns.). Ben Eay. Named by Mr. Townsend, who wrote (Dec. 189G), "it has only hitherto been found in Aberdeenshire." Mr. Druce (Joitrn. Bot. 189G, 390) states that it occurs in Argyll and Westerness. — E. gracilis Fr. Stream near Kinlocliewe. Named b}' Mr. Townsend. Utricularia neglecta Lehm. Loch on Feith-an-Leothaid ; Loch Gleann-na-Muice. One station in Mr. Druce's list. — U. intemicdia Hayne. Loch Maireannach ; Loch Clair. One station given by Mr. Druce. Malaxis paludosa Sw. Near Loch Clair ; near river at Kinlochewe. Allium ursinum L. Near A-Ghairbhe. Carex pilidifcrn L. var. loiif/ibracteata Lange. Slioch. Named by Mr. Arthur Bennett. — C. Immjata Sm. Near A-Ghairbhe. Mr. Druce says, "on the authority of Mr. Grieve, I have not seen it in the county." Mr. Bennett verified the name. *Poa Bal/ourii Parn. Slioch. Named by Mr. Arthur Bennett. Hijmenophijllum unilaterale Bory. A-Ghairbhe; below Beinn-a'- Mhuinidh ; abundant on rocks at Talladale. Cn/ptor/rainme crispa Br. Slioch. R'quisetwn pahistre L. Sandy margin of Loch Maree, near Kin- lochewe. Mr. Arthur Bennett reports, "a form between var. tenelhim (Fr.) and the ordinary plant, I believe." Lycopodium inundatum L. Near Loch Maireanuach, near Kinlo- chewe. Recorded for W. Ross in Top. Bot. without personal authority. Mr. Druce says, " I have a recollection of seeing it recorded from Kinlochewe." Iso'eies lacustris L. Slioch. — /. echinospora Dur. Lochs on Feith-an-Leothaid; Loch Gleann-na-Muice. In Mr. Druce's 'list as " recorded by Mr. Ewing." Chara J'raijUis Dcsv. Lochs on Feith-an-Leothaid; Loch Gleann- na-Muice ; also as a "form approaching var. barbuta" in a stream at Kinlochewe. Named by Messrs. H. &, J. Groves. 350 NEW NATAL PLANTS. By J. Medley Wood, A.L.S. DECADE I. Hibiscus saxatilis Wood & Evans, n. sp. Suffruticosus, erectus, 1-2 ped. altus, parce ramosvis, caulibus, petiolis, pedun- culis, involucro et calyce dense stellato-hirsutis. Folia varianfcia ex ovatis ad profunde 3-5 lobata, lobis acute serratis, ciliatis, utrinque stellato-hispida, maturioria glabresceutia, basi 5-9-veuis, 1-3 poll, longa, Ij- 21 poll. lata. Pedunculi axillares terminalesque longiores petiolis. Involucellum bracteis 8-10 oblongo-ovatis, ciliatis, venosis, |-1 poll, longis, 2-3 lin. latis. Corolla involucello duplo longior. Ovarium dense hirsutum. Semina sericea. Flores albi, medio obseuri. Habitat. — Natal. On a rocky bill, summit of Van Reenen's Pass, Drakensberg Mts., alt. 5-GOOO ped., December; J. Medley Wood, No. 5961. Rhus rupicola Wood & Evans, n. sp. Frutex erectus, multo ramosus. Rami ramulique Inrsuto-pilosi. Folia trifoliolata petio- lata, petiolo communi 2-5 lin. longo, foliolis obovatis, sessilibus, basin coarctantibus, mucronatis, subcoriaceis, reticulatis, integris, margine revoluto, pallidioribus infra lucidisque, nervo tantum pubescente, terminalibus 3-6 lin. longis, 2-3 lin. latis, lateralibus similibus, sed plerumque minoribus. Paniculae axillares terminal- esque multo longiores, foliis 1-2 poll, longa", rhachi pedunculisque minute pubescentibus. Pedicellus flore paulo longior. Flores minuti, lutei. Drupa globosa, 1-2 lin. diam., glabra. Habitat. — Natal. Amongst rocks below waterfall, Liddesdale, near Howick ; J. Medley Wood, No. 3932, February, 1888. Amongst Soutb African species this comes nearest to 11. mucro- nata, but differs from it by indument of branches, shape and size of leaves and petioles, length of panicles, colour of flower, and appa- rently also in size of drupe : we have no specimens of //. mucronata with which to compare it. Rhynchosia ovata Wood & Evans, n. sp. Caulis suffruticosus, suberectus, cum ramis dense rufo-pilosus. Folia longe petiolata, trifoliolata, foliolis ovatis, mucronulatis, integris, basi rotundatis, trinervis, tenuiter hispidis et pilis longis albis ciliatis, lateralibus brevissime petiolulatis, terminalibus longioribus, maturis, IJ poll, longis, 1 poll, latis. Stipul;T3 subulata?, striat^e, 3 lin. longa?. Racemi axillares terminalesque, folia superantes, floribus paucis, distantibus. Bractete baud vis^. Legumen oblongum, acutum, basi angustatum, 9 lin. longum, 3-4 lin. latum. Habitat. — Zululand. Near Entumeni ; J. Medley Wood, No. 3987. April, 1888. Amongst South African species this falls in the section Copisma, and comes near to B. adenodes, from which plant it differs in size and shape of leaves (which are not resinous dotted), size of flowers, cutting of calyx, and indument. NEW NATAL PLANTS. 351 Helichrysum infaustum Wood & Evans, n. sp. Caules ex radice liguosa, plures, diffusi vel suberecti, simplices vel ramosi, pubescentes, basi nudi, sursum foliosi, 4-8 poll, lougi. Folia alterna, sessilia, linearia, obtusa, Integra, superne araneoso-lanata, inferne dense albo-tomentosa, 3-8 lin. longa, 1-1^^ liu. lata. Cymre in pedunculis elongatis, globosae, conciunse, 50-100-cephalae, G-15 lin. diam. Capitula cylindracea, 4-8-fl., Ih; lin. longa, floribus omnibus hermapliroditis, corollis 5-dentatis. Involucrum seriebus pluribus imbricatum, squamis scariosis, fulvis, exterioribus ovatis, interioribus ovato-lanceolatis. Receptaculum planum, foveolatum. Pappum acbeuiaque non vidimus. Habitat. — Natal. Near Van Reenen's Pass, Drakensberg Mts., 5-6000 ped. alt., March; J. Medley Wood, No. G973. Near H. hamulosum E. M., but a smaller and apparently less erect plant, with much smaller cymes and heads, and more woolly leaves which are not "hook pointed." Differs from H. Kraussii Sch. Bip. in having all its florets perfect, also in habit and size ; and from both in indument of leaves. After examination of numerous heads, we have not been able to find any trace of pappus. Berkheya latifolia Wood & Evans, n. sp. Herbacea, 1-2 ped. alta, apice racemoso-pauiculata. Folia inferiora 12-14 poll, longa, G-7 poll, lata, ovato-oblonga, basi coarctantia, acuta, petiolata ; intermedia minora, angusto-oblonga, decurrentia in utraque parte caulis, superiora rapide diminuentia, crasse creuata marginibus spinosis, obscuris, paucis minutis adpressis pilis supra, infra arach- noidea. Capitula pauca (3 tantum in speciminibus nostris). Pedi- celli erecti, 2^-4 poll, longi. Squamae involucrales 100 vel plures, in j)luribus seriebus, diffusa), rigidfe, marginibus spinosis, glandulis minutis pedicellatis, subtus dense tectae. Spini 1-2 lin. longi. Radii circa 40, |-1 poll, lougi, 6-8-striati, bifidi, utroque lobo bifido. Receptaculum profunde foveolatum, cellis apice laceratis, dentibus sa)pe longis acuminatis. Achseuia glabra. Squamte pappi paucte, apice laceratoe, interiores angustiores. Flores lutei. Habitat. — Natal. On side of a grassy hill near De Beers Pass, Drakensberg Mts., March, 5-6000 alt. ; J. Medley Wood, No. 5960. Berkheya montana Wood & Evans, n. sp. Herbacea, erecta, striata, spinosa, minute pubescens, 3-5 ped. alta. Folia radicalia nulla, caulina oblonga, margine plus minus undulato vel augulato, spinoso-ciliato, superne minute hispida, inferne tcnuiter arachnoidea, inferiora 6-9 poll, longa cum petiolo, 3-4 poll. lata. Petioli foliorum inferiorum subamplexicaules nee decurrentes, ^-^ poll, longi, gra- datim diminuentes, foliis superioribus sessilibus. Capitula laxe disposita in corymbis axillaribus terminalibusque i-1^ poll. diam. Squama] involucrales squarros;e, lanceolate, exteriorcs longissimoe, spiuoso-acuminatie, margine spinis paucis sparsis in basi concreto, arachnoidea) infra, utrinque dense tecta3 glandulis minutis, vena media conspicua, lateralibus supra obscuris. Squamre exteriores 4-7 lin. longiTj, spinum 1 lin. longum iucludcntes. Receptaculum profunde foveolatum, cellis fimbriatis, longis setis acuminatis. Acha^nia glabra, striata, minute pedicellata. Pappum crateriforme, concretum, uniseriatum, apice laceratum. Flores lutei. 352 NEW NATAL PLANTS. Habitat. — Natal. In a shady valley near De Beers Pass, Drakensberg Mts., 5-6000 ped. alt., March; J. Medley Wood, No. 6978. Chsenostoma neglectum Wood & Evans, n. sp. Herba erecta, parce ramosa, pluribus caulibus ex radice lignea, teres, tenniter Bed dense pubescens pilis siibfuscis. Folia opposita, sessilia, sub- amplexicaulia,lineari-obloDga, obtusa, remote et infiequaliter dentata, vena media infra prominente lateralibus obscuris, coriacea, utrinque tenuiter pubescentia, prtesertim subtus in vena media, 3— li poll, lono-a, l-h poll. lata. Flores in racemis axillaribus termiualibusqne, simplicibus vel compositis dispositi. Pedimculi ^-2^ poll, longi. Bractea uua basi utriusque pedunculi, subulata. Calyx ganio- sepalus, 5-partitus, tubo subgloboso, limbo 5-lobato, lobislinearibus, erectis, tenuiter hispidis, 2-3 lin. longis, H lin. latis. Corolla hypo- crateriformis, tubo brevi, limbo 5-dentato, lobis fequalibus, integris, diffusis, calyce dimidio vel ultra longiore, roseo, fauce lutea. Stamina quatuor in corolhie fauce, inclusa, subdidynama. Anthera similes, 1-loculares, reniformes margine membranaceo. Ovarium superius, 2-loculare, ovoideum, hispidum. Stylus filiformis, hispidus. Stigma obtusum. Fructus capsularis. Semina numerosa. Habitat. — Natal: near Charlestown, January, 5-6000 ped. alt. ; J. Med lei/ Wand, No. 5241. De Beers Pass, Drakensberg Mts., 5-6000 ped., March ; J. Medley Wood, No. 6032. Orange Free State: near Harrismith, 5-6000 ped. alt., March; J. Medley Wood, No. 4817. This plant is so very common in the localities above named, that it seems strange that it has been for so long undescribed. It appears to prefer the vicinity of cultivated ground, though often times found far from it. Moraea glauca Wood & Evans, n. sp. Cormus globosus, |-1 poll, diam., plerumque pluribus minoribus natu parvisque undique collectis. Tunicje chartacea^ venis prominentibus longi- tudiualibus, cum venulis obliquissimis transversis, lamina coloris melini, venis venulisque obscure rubro-fuscis, acuminatis. Caulis brevis. Folium basale 6 ped. longum, basi f poll, latum, gradatim an- gustatum ad apicem, saspe forsan semper flaccidum deorsum 1-3 ped., glabrum, subglaucum, basi numerosas bulbillas parvas includente, 1 vel 2 utroque nodo. Valvfe spathas 3-5 poll, lougte, cylindraceae, hi- vel multi-floris, interior longissima, exterior connata, basi plus dimidia longitudiue, longe acuminata, virides cum apicibus flaccidis. Perianthium luteum, cum maculis fuscis basi cujusque lobi, vena media conspicua. Segmenta diffundentia, 1-1 :^ poll. longa, ipoU. lata, oblonga, exteriora mucronulata apice, interiora similia sed angustiora, et longitudine subrequale. Filamenta connata f longitudiue. An- therte sagittatii?, lineari-oblongre, extrorsfe, cum counectivo producto. Pollen luteum. Styli spathulati, tenuiter ciliati in margine superiore, cristis lanceolatis, marginibus liberis interioribus in basin stylorum petaloideorum currentibus. Ovarium 3-loculare, obtuse 3-angulatum, ovulis 1 vel 2-seriatis, superpositis, numerosis. Capsula non visa. Habitat. — Natal. Moot River district ; J. Medley JVood, No. 4035. This plant belongs to the subgenus Eumoma and to the section NEW NATAL PLANTS. 353 CorymhoscB, and comes near to M. iriopetala, but differs in size and coating of corms, length of spathe-valves, which are withered at tip, colour of flowers, and shape of perianth-lobes. From M. mini it differs by length of leaf, stem and peduncle, colour of flower and pollen, and cutting of style-crests. This is one of the plants called by the Dutch colonists "Tulp" or "Tulip," which are so fre- quently fatal to cattle ; its leaves appear in the early spring when grass is not plentiful, and cattle — I believe especially those from a district where the plant is not found — eat it with fatal results, whole spans of oxen having been killed by it. Probably several species of Moraa have the same properties, and are included in the generic name "Tulp." Aloe Marshall! Wood & Evans, n. sp. Acaulescens, folia jiroducta 20 vel plura, multifaria, erecta, linearia, basi mvtlto dilatata, 1-2 poll, lata, basi gradatim coarctantia 1-2 poll., inde angusto-linearia ad apicem acutum, parte dilatata basi cum maculis minutis albis notatus, parte angusto-lineari, 2-3 lin. lata, non alveata, vena media conspicua, margine parvis dentibus spinosis, inferioribus confertis, superioribus restrictis, pedunculis simplicibus, 1-2 ped. longis, paucis bracteis ovatis cuspidatis scariosis. Flores 15-30 racemosi internodis ^-^ poll., pedicellis inferioribus ^-| poll, longis. Bracteae oblongo-cuspidatse, paullo longiores pedicellis. Perianthium cylindraceum, coccineum, prnsacutum, viride, tubo longo lobis 3-5 lin. longis. Stamina cum stylo inclusa, perianthio subfequantia. Habitat. — Natal. Rocky hill on the farm "Kelvin Grove," near Glencoe, 4-5000 ped. alt. ; J. Medlei/ Wood, December, 1896. This plant seems to fall between A. Cooperi and A. mlcrocantha ; from the former it differs in leaves which are not " tapering gradu- ally to the point," in the length of the pedicels and bracts, colour of flower, and length of perianth-tube. From the latter it differs in texture and shape of leaves, number of empty bracts, looseness of raceme, length of fertile bracts and perianth-tube. Of the latter species, however, we have no specimen with which to compare it. A plant well worth cultivation, having much the appearance when in flower of the well-known Cyrtantlms anrjustifolius. Kniphofia multiflora Wood & Evans, n. sp. Folia lorata, rigida, cum venis numerosis, margine tenuiter et irregulariter serrulato, 3-4 ped. longa, ^-1 poll. lata. Pedunculi foliis sub- sequantes. Racemus dense multiflorus, 12-15 poll, longus, sub- spicatus, cum pedicellis brevibus. Bractcio lineares, pedicellis longiores. Flores erecti, numerosissimi, 300-400 in racemo luteo. Perianthium subcylindraceum, medio paullo constrictum, h-^ ^o\\. longum, 2 lin. latum, segmentis brevissimis tarn latis quam longis. Stamina cum stylo valde exserto. Habitat. — Natal. In a swamp, summit of Drakcnsberg Mts., between Van Rcenen and Nelson's Kop, 5-GOOO ped. alt. ; J. Mcdleij Wood, No. 5972, March, 1896. Differs from all the other Natal species of the genus known to us by its quite erect flowers, also by its long, narrow, many-flowered raceme. Journal of Botany. — Vol. 35. [Sept. 1897.] 2 a 354 NOTES ON MYCETOZOA. By Arthur Lister, F.L.S. Badhamia. ovispora Racib, — Mr. James Saunderg, of Luton, discovered this species on old straw at Barton, Beds, on June 5tli, 1897. On further search among straw heaps at Stopsley Common, which lies a few miles distant from Barton, when I had the pleasure of being one of the party, more was found, and on July 28th a large gathering was made at the same place by Mr. C. Crouch, of Kitchen End, Ampthill. I am not aware of B. ovispora having been pre- viously collected, except the original type obtained by Dr. Raciborski on branches of Populns canesce72s DC. in Poland in 1884 (referred to in Ih-it. Mus. Cat. jSbjc. 36). I have seen a glycerine preparation of the type in the possession of Dr. Celakovsky, of Prague, and was able to take a camera lucida drawing of the spores, and can there- fore vouch for the specific identity of the present gatherings. The sporangia are sessile, hemispherical, about 0*5 mm. diam., usually crowded and confluent, or forming elongate and anastomosing plas- modiocarps. The prevailing colour is white, but some clusters are greyish pink, and others ochraceous. The thick sporangium-wall is very fragile, and composed of remarkably large round granules of lime 1-5-4 /x diam., which separate almost like sand on slight pressure ; the calcareous outer crust rests on a delicately mem- branous layer enclosing the spores. The capillitiura consists of large irregularly-shaped lime-knots, often connected by broad tubes filled with lime-granules, and uniting to form a cohmiella at the base of the sporangium ; sometimes the columella is wanting, and the capillitium is more regular in form with true Badhamia character, but it is here and there reduced to slender hyaline threads. The lime-granules filling the knots are of the same structure as those in the sporangium-wall, and crumble down almost at a touch. The spores are strikingly characteristic of the species ; they are free, and vary in shape from ellipsoid to nearly globose ; they measure from 10 to 16 /x by 8 to 10 /x diam., and are perfectly smooth as seen under a magnifying power of 1600 diam. A ridge or fold runs along one side in the direction of the long axis, and often gives the appearance of an apiculus at the two ends. On drying, the spores contract on the side marked by the aforesaid ridge, and take a boat- shaped form ; when viewed under a moderate magnifying power, they sparkle like glass beads, reflecting the light from their polished surfaces ; the colour is olive-brown witli a purplish tinge. In several species of rhysanim, especially in P. comprcssiim, we are accustomed to meet with a vitreous condition of the lime on the sporangium-wall ; it appears to be in consequence of exposure to rain, and is alluded to in B. M. Cat. 54. The solution of the lime- granules and subsequent crystallization is a striking feature in B. ovispora ; in some cases the sporangium is almost covered with irregixlarly-shaped, crystalline nodules about 40-50 /x diam. The examination of old straw heaps in open fields has lately yielded remarkably rich results, and I hope shortly to offer some X POTAMOGETON FLUITANS IN HUNTINGDONSHIRE. 355 remarks on interesting species of Physarum and Dklymium found in great abundance in these localities, and exhibitiug unusual characters. It would be well if those who are interested in these organisms would investigate such straw heaps during the summer and autumn, X POTAMOGETON FLUITANS IN HUNTINGDONSHIEE. By Alfeed Fryer. Shortly after the discovery of P. fluitans''- in a small pit by the side of the forty-foot , or Vermuyden's Drain, in Ramsey parish, the pit was used as a receptacle for rubbish from a neighbouring cottage. Foreseeing thence the probability of the plant soon becoming destroyed in its sole locality in Huntingdonshire, I planted some roots in a recently-dug pit near Warboys Wood. Although the subsoil of the pit was Oxford Clay like that of the Ramsey locality, the plants did not thrive for some years, probably from the want of the decayed vegetable mud which forms the lower stratum of the woody ponds in which Potamogetons flourish. Time, however, remedied this defect, and two years ago I saw that the roots began to spread a little about the pond. In July of the present year I again visited the Warboys locality, and to my delight found a mass of P. fluitans extending over some forty square yards, or more. As the species had already been extinct as a native plant in Huntingdonshire for nearly ten years, I felt that in following Mr. H. C. Watson's advice of "helping" a plant to live, I had done well ; and the plant being beyond all danger of extinccion by any number of collectors, the time had come when a notice of the introduction became necessary in this Journal. On August 19th I was at the original locality in the parish of Ramsey, and found no trace of any Potainoyetun whatever in the little pit by the forty-foot drain, but some fifty yards away I saw a new pit had been dug since my last visit in 1895. In this new pit to my surprise I found some beautiful seedling forms of P. naUms, with lanceolate, oval, and round floating leaves, sufficient to afford examples of several named " varieties," but unfortunately all growing on one rootstock in the instance in which the " varieties " were most marked ! At one end of the pit a plant of nutans was growing which looked older and more thoroughly established, and with much the look oi fluitans about the mass of foliage. On closer inspection I found several plants of Jluitans were really mixed up with the nutans, and that native, unhelped specimens of Huntingdonshire Jiuitans were still existing ! Now from whence did these plants come ? My former suggestion {Joxirn. Hot. 1886, 307) that the species was brought down from the upland waters of the county has received no support from an examination of the only brook which runs into the forty-foot. • Jonrn. Bot. 1888, 277. 2 A 2 35G REPORT OF DEPARTMENT OF BOTANY, BRIT. MUS., 1895. Althongh that brook is the source of P. natansm this locality, no plants of F. iinitans have been found in it, in spite of repeated and careful examination. Again, no floods have occurred recently such as could have washed roots or seeds from the upland water into the new pit. I think the question of the reappearance of P. naUms itself, letting alone fluiUms for the moment, in this restricted locality is only to be explained in one way — by the rootstock having survived in the soil, made damp by winter floods, for many years without having been able to push up stems or leaves ; certainly none have been seen during the fifteen years I have visited the spot, which has been perfectly dry in summer and grazed over by cattle. Now if we allow that a strong rootstock of P. natans managed to survive in the dried-up mud and clay for some years, we only add another instance to many which are familiar to all fen-men of the persistent vitality of buried roots of water-plants. To return to P. jiuitans .-—the fact of most interest to me is that it remains quite unaltered in both localities, it is exactly as it was four- teen years ago, no variation whatever has taken place ; and as I have never yet seen forms of P. fluitnns from any two localities, however near to each other, exactly alike, I can come to only one conclusion • — that the reappearance of P. Jiuitans in the original locality is due to a long-buried rootstock. Probably when the locality at Ramsey was constantly under water, as it was prior to 1848, the original seedling x P. jhdtans covered a considerable space, as the trans- planted roots now do at Warboys. In habit of growth P. jiuitans keeps very distinct from my P. crassifulius, which I still think a hybrid with Zizii as one parent instead of lurens. Where Zizii does not grow we find only the typical P. Jiuitans! * EFFORT OF DEPARTMENT OF BOTANY, BRITISH MUSEUM, ISOa.f By George Murray, F.R.S.Ed. The collections have been enriched duriug the year by several especially noteworthy additions. Mr. Arthur Lister has added to his previous gifts the further one of 832 microscope shdes of Mycetozoa and 397 herbarium specimens, as well as 112 exhibition specimens and 36 coloured drawings by Miss Gulielma Lister to illustrate the British representatives of this group. The latter series have been placed in a table-case in the gallery. A collection of nearly 8000 drawings of British Fungi by Mr. Edwin Wheeler, of great botanical value, has been generously pre- sented by Messrs. Edwin and Henry Wheeler. The drawings are of particular importance as accurate records of the colour characters * Since the above was written, rootstocks of both species have been found (August 27th) under conditions continning the view advocated. [t This was accidentally omitted from our last year's volume ; we print it now in order that the series may not be incomplete. — En. Journ. Bot.] REPORT OF DEPARTMENT OF BOTANY, BRIT. MUS., 1805. -JO? of the larger Fungi, which are so difficult to preserve suitably iu a herbarium. A present of much value and interest, consisting of 14G micro- scope slides, illustrating his researches on Archegoniato plants, has been made by Professor D. H. Campbell, of the Leland Stanford University, California. The other additions to the collections by presentation have con- sisted of 91 plants from Kolguev Island, by A. Trevor Battye, Esq. ; 12 specimens of tropical fruits and palm foliage, and 2 species of Cordyccps, by H. N. Ridley, Esq. ; 4 species of cultivated orchids, by Miss Woolward ; 213 specimens of East African plants, by F. J. Jackson, Esq.; 718 Indian plants and specimens of aerial roots of Sunderbund plants, by Dr. King, Botanic Garden, Calcutta ; 210 specimens of East African plants, by Dr. Donaldson Smith ; 4 speci- mens of cultivated orchids, by Messrs. Veitch ; 739 plants from Kashmir, by J. F. Duthie, Esq. ; 89 North American plants, by A. Davidson, Esq. ; 25 plants from Great Salvage Island, and 11 from Great Piton, by W. E. Ogilvie Grant, Esq. ; 41 plants from West Tropical Africa, by Captain Lugard ; 4 plants from Ceylon, by Dr. Trimen ; 101 plants from North America, by Professor Piobinson ; 101 plants from North America, by Professor Macouu ; 36 Cryptogams from British Guiana, and specimens of Urari poison ingredients, by J. J. Quelch, Esq. ; 185 plants from North Cali- fornia, by Professor E. L. Greene ; 16 specimens of Malvacca from South Africa, by E. E. Galpin, Esq. ; 23 plants from the Pamirs, by theliev. J. Gerard; 42 plants from Australia, by Spencer Moore, Esq. ; 3 specimens of cultivated orchids, by James O'Brien, Esq. ; 59 North American Lichens, by Professor Farlow ; 29 Cryptogams from Ceylon, by E. E. Green, Esq. ; 11 American and 13 Japanese t'haracca;, by Dr. T. F. Allen ; 48 Alga^ from the Cape of Good Hope, by Miss Newdigate ; 63 Algce from the Cape, by W. Tyson, Esq. ; 17 Algpe from the Cape, by the late Professor Schmitz ; 15 MgiG from South Australia, by Baron von Mueller; 30 Cali- fornian Alga) and 6 photographs of the same, by W. R. Shaw, Esq. ; 52 Cryptogams from India, by Dr. T. Cooke ; 3 Algte, by Major Reinbold ; specimens and slides of Xeomeris, by A. H. Church, Esq. ; 2 Algc^ from the Cape, by Professor E. Perceval Wright ; a gathering of Diatomaci'ft from Trinidad, by the Director of the Royal Gardens, Kew; 2 Australian Fungi, by Miss Dymes ; and single specimens, by E. M. Holmes, Esq., Dr. Lange, F. W. Moore, Esq., Professor Cramer, Miss Pigou, Mevrouw Weber van Bosse, W. W. Strickland, Esq., and Surgeon-Captain A. Alcock. The following additions have been made by presentation to, the British Herbarium :— 131 specimens by the Rev. E. S. Marshall; 21 specimens by Captain WoUey Dod ; 3 specimens by W. Whitwell, Esq. ; 12 specimens by Clement Reid, Esq. ; 11 specimens by the Rev. E. F. Linton ; 9 specimens by Professor D. Oliver; 3 specimens by R. F. Towndrow, Esq. ; 108 specimens by W. A. Shoolbred, Esq. ; 2 specimens by the Rev. Augustin Ley; 50 specimens by T. \Vulff, Esq., for the exhibition series of British plants ; 3 Mosses by Mrs. Tindall ; 10 Algte by G. Brebner, Esq. ; 2 Fungi by Miss Beatrice 358 REPORT OF DEPARTMENT OF BOTANY, BRIT. MUS., 1895. Heathcote ; 2 Fungi by Lord Walsingham ; 20 rare Staffordshire Mosses by J. E. Bagnall, Esq. ; and single specimens by Sir Hugh Low, W. P. Hiern, Esq., David Robertson, Esq., J. C. Mansel- Pleydell, Esq., and H. Wigley, Esq. The following additions have been made by exchange of dupli- cates:— 442 specimens of Tropical African plants, and a specimen of Fleurodadia pahistris from the Director of the Eoyal Botanical Museum, Berlin ; specimens of the fruits of Dio7i edide and Zainia from Professor Penzig ; 2 new species of Disperis from Dr. Schlechter ; and 159 slides of Hepatic^ from Mrs. Tindall. The first half, consisting of 5000 specimens, of the Stephani collection of Hepatics has been acquired by purchase. A very large number of these are type specimens, since Dr. Stephani has described nearly every important foreign collection during the last twelve years. This purchase has greatly enriched an important section of the Herbarium, and, happily, at a time when increased study is being given to the characteristics of the Hepaticae. The following collections have also been acquired by purchase : — 100 specimens of Potatnofjeton, collected by Tiselius ; 96 specimens of South African plants, collected by Schlechter; 1233 plants and 68 woods from Kilimanjaro, collected by Volkens ; 348 South Texas plants, collected by Heller; 208 Persian plants, collected by Born- miiller ; 302 Mexican plants (Provinces Colima and Sonora), collected by Palmer ; 200 Borneo plants, collected by Haviland ; 400 Polish plants, collected by Rehman and Woloszczak ; 300 plants from Asia Minor, collected by Sintenis ; 113 plants from Natal, collected by J. M. Wood ; 384 plants and 3 wood specimens from Formosa, collected by Henry ; 429 Mexican plants, collected by Pringle ; 297 plants from the Sandwich Islands, collected by Heller; 118 plants from Bulgaria, collected by Stribrny ; 251 Bolivian plants from Rusby ; 50 British plants (Willows and Rubi) from the Rev. E. F. Linton ; a specimen of Flemiiujites from Sherborn ; 50 speci- mens of Fungi from Cavara ; 350 Fungi from Sydow ; 100 Fungi, principally Australian, from Cooke ; 100 Russian Fungi from Jackzewski, Komarov, and Transzchel ; 100 Brazilian Mosses from Ule ; 88 Mosses of Newfoundland and Labrador from the Rev. A. C. Waghorne; 150 North American Algfe from Collins, Holden, and Setchell; 61 slides of Algae from Buffham ; 200 Fungi from Pazschke ; 100 Scandinavian Fungi from Eriksson ; 50 Fungi from Seymour and Earle; 17 UredinciPixonx^oXv^d^y ; 50 North American Mosses from Renault and Cardot ; and 100 Fungi from Krieger. There have been added to the collection of prints and drawings 24 original drawings by Sydenham Edwards for "The New Botanic Garden," 3 drawings by Mrs. Withers, and 1 by Fitch. A manuscript journal of Sir Joseph Banks' voyage to Newfound- land and Labrador in 1766 has been acquired by purchase. The journal is in the handwriting of Sarah Sophia Banks, the sister of Sir Joseph. 359 REPORT OF DEPARTMENT OF BOTANY, BRITISH MUSEUM, 1890, By George Murray, F.E.S. The late Freeman C. S. Roper, of Eastbourne, for many years an authority on Diatomacea;, has greatly enriched the collections by the bequest of his cabinet of Diatoms, consisting of 3580 slides, 2 type slides, and 41 herbarium specimens. Mr. Roper's collection had been long known as one of the best private cabinets, since it contains much material prepared under his special direction. It has proved to be of great value even as an addition to the magnificent series of slides already in the Department. The Linnean Society has presented 3705 specimens of Fungi and Lichens (from Weddell's Herbarium), and the gift has made it possible to complete published sets by E. Fries, Mougeot and Nestler, Stenhammar, Th. M. Fries, Hepp, Anzi, and Malbranche. The other additions to the collections by presentation have con- sisted of 841 Malayan Phanerogams and Cryptogams, 345 woods and 1 fruit by H. N. Ridley, Esq., Director of Gardens and Forests, Singapore; 453 Indian plants by Dr. George King, C.I.E., F.R.S., Superintendent of the Royal Botanic Garden, Calcutta ; 352 Kash- mir and 100 Pamir plants by J. F. Duthie, Esq., Director of the Botanic Garden, Saharunpur ; 81 Cryptogams and 1 fruit by the Honourable William Fa^Ycett, Director of Public Gardens and Plantations, Jamaica; 3 plants by J. H. Hart, Esq., Superintendent, Royal Botanic Gardens, Trinidad ; 135 South African plants by the Government of Cape Colony ; 74 African Fungi and 3 fruiting specimens of Flowering Plants by W. T. Thiselton-Dyer, Esq., C.M.G., C.I.E., F.R.S., Director, Royal Gardens, Kew ; 11 Insecti- vorous plants by Professor Balfour, F.R.S., Director of the Royal Botanic Garden, Edinburgh ; 24 North American and Mexican plants by the Director of the National Herbarium, Washington ; 435 African plants by tbe late John Buchanan, Esq., C.M.G. ; 8 specimens by Messrs. Veitch ; 93 North American plants by Professor Macoun ; 240 Canadian Phanerogams and Cryptogams by J. M. Macoun, Esq. ; 25 plants from Kolguev by Colonel Feilden; 34 European plants by Dr. Christ; 248 Chinese Phane- rogams and Cryptogams and 30 fruits by Father Hugh ; 17 American Willows by W. W. Rowlee, Esq. ; 300 Phanerogams and Crypto- gams from British North Borneo by his Excellency the Governor Creagh, C.M.G. ; 70 South African plants by H. Bolus, Esq. ; 74 Nyasaland plants by the Universities Mission; 2 photographs of Mexican vegetation and 2 Fungi by 0. H. Howarth, Esq. ; 2 plioto- graplis of Hakca (irammatopJujUa by G. H. Adcock, Esq. ; 3 specimens and drawings by Professor Bailey ; 6 Orchids by F. W. Moore, Esq. ; 4 species of Lhnilieya by Dr. Cordemoy ; 2 Canarian plants by the Rev. R. P. Murray ; 3 New Zealand plants by T. Kirk, Esq. ; 21 Orchids by J. Weathers, Esq. ; 27 West Australian plants by W. Fraylen, Esq. ; 17 microscope slides of Cryptogams by C. D. Sherborne, Esq. ; 300 New Zealand Musci and Hepaticaj by F. T. Mott, Esq. ; 3 Tasmania Mosses by W. A. Weymouth, Esq. ; dried 360 REPOKT OF DEPARTMENT Of BOTANY, BKIT. MUS., 1896. and spirit specimens and 4 microscope slides of a new genus of Hepatica3 by Professor D. H. Campbell ; 23 Cape Algfe by W. Tyson ; 73 Cape Algve by H. G. Flanagan, Esq. ; 3 Cape Alg^e and specimen of a new variety of Jaborandi by E. M. Holmes, Esq.; 25 Australian Algae by the late Baron von Mueller, K.C.M.G. ; 75 Grand Canary Algfe by Miss Anna Vickers ; 12 Crimean Algse by Miss Nathalie Karsakoff ; 18 slides of Plankton Diatoms by Professor Cleve; 2 Algie by Surgeon-Captain Alcock; 14 Antiguan Mycetozoa by W. Crau, Esq. ; 17 photographs of Indian Fungi by Dr. Alfred Lingard; and single specimens by Graf zu Solms-Laubach, Professor F. W. Oliver, Captain Meryon, R.N., Eev. C. H. Binstead, and W. Horace Wood, Esq. The following additions have been made by presentation to the British Herbarium: — 342 plants by the Kev. E. S. Marshall; 76 plants by Arthur Bennett, Esq. ; 38 plants by A. B. Jackson, Esq. ; 20 Montgomeryshire plants by W. Whitwell, Esq. ; 6 plants by T. Hilton, Esq. ; 2 plants by Miss Boyd; 5 Insectivorous plants by Professor Trail ; 2 Leicestershire plants and 200 Musci and Hepaticse by F. T. Mott, Esq. ; 1 rare Moss and 2 microscope slides by W. E. Nicholson, Esq. ; 11 AigiD and 6 slides by George Brebner, Esq. ; 18 Fungi by C. B. Plowright, Esq. ; 11 Fungi by Miss A. L. Smith; 3 Fungi by C. F. Jenkin, Esq. ; 2 Fungi by Cedric Buckuall, Esq. ; and smgle specimens by J. Lloyd Williams, Esq., Eev. E. A. Woodruffe Peacock, Mrs. Marindin, Rev. E. D. Heathcote, Rev. C. H. Binstead, Miss A. H. Fisher, and W. H. Shrubsole, Esq. The following additions have been made by exchange of dupli- cates : — 928 Phanerogams and Cryptogams from the Cameroons and the Argentine Republic, from the Director of the Royal Botanical Museum, Berlin ; 597 Minnesota plants from Professor Conway Mac- millan ; and specimens in spirit of 2 parasites for exhibition from Professor Penzig. The second (concluding) portion of the Stephani collection of Hepaticfe has been acquired by purchase. It consists of 6920 specimens, and is in every respect a most satisfactory addition to the Herbarium. Two small Herbaria of Alg^e of much value were also purchased, viz. that of the late T. H. Buffham, consisting of 1330 specimens, chiefly from British coasts ; and that of the late Bracebridge Wilson, containing 1485 Victoria specimens. Both collections were the fruit of careful and assiduous Avork during many years. The following specimens have also been acquired by purchase: — 1334 Phanerogams and Cryptogams, from "the Sequoia region," by Hansen ; 1254 Phanerogams and Cryptogams, from North America, by Marcus E. Jones; 529 Phanerogams and Cryptogams, from Madagascar, by Dr. Forsyth Major; 340 Chinese plants, by Father Hugh; 100 Lombok plants, by Everett; 239 Armenian plants, by Sintenis; 100 Pohsh plants, by Woloszczak; 276 French Congo plants, by Bates ; 249 Hawaiian plants, by Heller ; 100 plants from Greece, by Heldreich ; 108 Bornean plants, by Havi- land ; 225 Mexican plants, by Pringle ; 280 Mexican plants and 22 fruits, by Palmer ; 79 Yucatan plants, 377 Orinoco plants, by SHORT NOTES. 861 Kusby ; 442 Persian plants, by Boiiimuller ; G44 Cryptogams, by Beattie ; 200 Swiss Cryptogams, by Wartmann and Winter ; 50 Swiss Cryptogams, by Wartmann and Scheuk ; 185 Labrador Mosses, by Waghorne ; 20G Labrador and Newfoundland Lichens, by Waghorne ; 48 Florida Algje, by Curtiss ; 50 North American Alg?e, by Collins, Holden, and Setchell ; 100 Alg;B, by Hauck and Eichter ; 25 Chdna-ccr, by Migula, Sydow, and Wahlstedt ; 350 Fungi, by Sydow ; 1G3 Mecklenburg Fungi, by Fiedler ; 200 Scandi- navian Fungi, by Eomell ; 1000 Fungi, by Ellis and Everhart ; 25 Parasitic Fungi, by Briosi and Cavara; 50 Lombardy Fungi, by Cavara ; 50 Kussian Fungi, by Jaczewski, Komarov, and Tranz- schel ; and 100 Fungi, by Krieger. SHOUT NOTES. Mobility of Antherozoids of Dictyota and Taonia. — While working at the fertilization of the Fucaccic last summer, I collected male and female plants of Victyota dichotuma Lamx., and carried out experiments with the view of deciding whether there was a process of fertilization in this case, or merely of parthenogenesis. On one occasion the so-called spcrmatia, or pollmouls, were observed in active motion, their behaviour being similar in all respects to that of the antherozoids of the Fitcacece, excepting that they came to rest much sooner. This phenomenon was seen late in September, towards the close of the fruiting season of Dictyota, and in conse- quence of the lateness of the season I was unable to observe it again. Though strongly urged to publish the observation, I thought it better to wait until ample proofs were secured before doing so. They have now been obtained, and experiments made during the present month (August) have confirmed in every respect the con- clusions arrived at last September. Male plants of Dictyota with mature antheridia obtained at Holyhead were carefully isolated at the time of collection, and kept moist. In the laboratory, fragments were placed in clean sea-water, either in glass capsules or on slides. In each case the antherozoids immediately appeared, swarming in the water and exhibiting as great activity as those of Fnctis. On focussing the microscope on the surface of a sorus the antherozoids could clearly be distinguished starting into activity and leaving the antheridia. Specimens were fixed and stained. Tliese show clearly the structure of the bodies and cilia of the spermatozoids, and in this respect a striking difference is at once observable between them and those of the Fucaci'cc. Details respecting tliese points, observa- tions on the conditions affecting their maturation, liberation, and mobility, together with the results of experiments on the fertilization and germination of the oospheres, will be published at an early date. While this work was in progress, antheridial plants of Taonia aiomaria J. Ag. were collected at Llandudno, and treated in the same manner as Dictyota. In this case also the antherozoids were actively motile. It is evident that the above observations have an 362 SHORT NOTES, mportant bearing on the position of these plants among the Plmo- jjhycea. — J. Lloyd Williams. Salix cernua Linton. — In my paper on the " Salix Lists in the London Catalogue " [Jouni. Bot. 1896, 461), I omitted any reference to 8. cernua, no fresh light having been shed on its origin since the description was written [Jouni. Bot. 1894, 202). This year the Kev. W. R. Linton and myself were at Braemar in July, and happily re-discovered the original plant on a rocky slope of the Little Craigindal, and a fair amount of specimens were procurable for our Set of British Willows. A doubt had been raised by the late Dr. F. B. White whether S. lepens L. ascended to the altitude, about 2100-2200 ft., at which the hybrid occurred ; and, though I felt little doubt that I had *S'. repens from such an elevation, and the Student's Flora says it "ascends to 2500 ft. in the Highlands," there was no evidence to show its presence in the neighbourhood of the Little Craigindal rocks. It was therefore a great satisfaction to me to find -S. repens growing close by the plant of S. cernua, and interesting to see plants of it flourishing on rocky ledges, a situation in which I do not remember to have noticed it before. We kept a sharp look-out for S. Lapponum L., as that had formerly been sug- gested to me as the probable co-factor with S. herbacea in making the hybrid ; but it was nowhere seen along the whole length of the rocks. The prevailing willow was S. Myrsinites L., which was fi-equeut, and presented some variation of leaf. A hybrid should occur here between S. Myrsinites and S. repens, in one spot growing in close proximity ; and this should be looked for in future years, though it does not seem to have been developed as yet. I gave my reasons when describing S. cernua for distinguishing between it and 6'. herbacea x Myrsinites; a plant of the latter, unmistakable, though male, was detected by the Rev. W. R. Linton on the same rocks during our visit in 1889, and cultivated specimens of this will go out in the same fascicle with S. cernua, for the sake of comparison and contrast. — E. F. Linton. PoTENTiLLA NORVEGicA L. IN SuRREY. — I iioticed somo plants of this species by a pond near Box Hill in June. Camelina sativa occurred on gravel near Dorking. — G. C. Druce. Caucalis nodosa Scop. — This plant, which usually occurs on sunny banks, I noticed recently in great plenty in a clover-field between Little Brickhill and Water Eaton, in Buckinghamshire. Here it had much of the habit of C. arvensis. The umbels, especially the lower ones, were shortly stalked. — G. C. Druce. ViciA viLLOSA Roth, var. glabrescens Koch. — My friend the Rev. H. J. Riddelsdell has sent me a vetch which he tells me is found in some quantity on heaps of rubble near Aberdare. This 1 find to be the plant above named ; it has much resemblance to V. Cracca, but the prolonged and almost gibbous base to the petals at once distinguishes it from that species. Asperula arvensis occurs in the vicinity. — G. C. Druce. 368 NOTICES OF BOOKS. Flore Populaire, ou Histoire Naturelle des Plantes dans letirs rapports avec la Lingidstique et le Folklore. Par Eugene Kolland. Tome I. [RanuncnlacefB — Crucifera] . Librairie Rolland, Paris. 8vo, pp. iii, 272. Price 6 fr. An undertaking which must have suggested itself to many besides the writer of this notice is now being executed by one whom previous work in kindred matters has shown to be fully competent for the task. M. Eugene Rolland has already issued the Faane Populaire de la France (1877-83), the six volumes of which contain the popular names and folklore connected with the beasts and birds (wild and tame) and other living creatures of his native country ; now that he comes to deal with the vegetable world he has taken a wider range, extending his researches to the plants of the countries of Europe, as well as of Western Asia and Northern Africa. M. Holland's book shows how vast is the popular nomenclature of plants, although at the same time it demonstrates the hopeless- ness of any attempt to record such nomenclature exhaustively. The list of authors cited, with the abbreviated titles of their books, occupies fourteen closely printed pages, and includes writers of all classes, from the Latin and Greek authors down to the present day. No language comes amiss to M. Rolland, but we could wish that he had given translations of the Polish, Hungarian, Artibic, and other names from languages with which most of his readers Avill hardly be familiar. Such translations are often appended to the Welsh citations, greatly to the advantage of the student who likes to trace the connection of one name with another. The old herbals and glossaries have been ransacked, and their numerous contri- butions are duly catalogued. French names naturally predominate ; many of them, says the author, "nous avons ete chercher nous-meme dans ce puits sans fond qu'on appelle la Tradition orale." No one who has not attempted to collect such information has any idea of the number of popular names still extant among the people, in spite of the advance of what is called education. Thanks to the English Dialect Society (whose work has been, we think, somewhat too abruptly terminated, in consequence of the issue in parts of the Fnglish Dialect Dictionari/), we have readily accessible a vast store-house of information regarding the folk-speech of our country ; but it is certain that the gleaner in such fields will yet find many stray qars ready to his hand, sufficient, indeed, to make no inconsiderable sheaf. M. Rolland has mainly followed (although by no means ex- haustively) the Dialect Society's Dictionary of Fw/lish Plant-navies for the popular nomenclature of this country, supplemented here and there by references to more recent works. Many local floras — such as Mr. F. A. Lees's West Yorkshire — would have supplied him with important additions, and the manuscript Supplement to the Dictionary of Plant-names — now, through the disruption of the 364 FLORE POPULAIRE. Society, indefinitely postponed — contains a large number collected from various sources. Here and there among M. Rolland's English names we note an error or an omission : thus, the Bon Jardinier Almanack for " the year XIII." notwithstanding, we cannot allow that the " ten week stock" is synonymous with the wallflower, and it is odd to find that a name in such general use as "Virginia stock" is not recorded for Makomia maritima. Sometimes names distinctly applicable to only one species are assigned to the genus, as when " snow in summer" and others are placed under the genus Arabis instead of under A. alplna, and "coral-wort" and the like are recorded under Dentaria instead of under D. bulbifera. At times we are inclined to doubt the accuracy of M. EoUand's generalizations, as when he says of Ranunculus arvensis, "Cette plante porte souvent les memes noms que les renoncules precedentes " (our three buttercups) ; certainly in England this species has a very distinct series of names, and its place of growth, spiny carpels, and general appearance sufficiently prevent it from being popularly regarded as one of the buttercups. The English names correspond curiously with some of those of other countries : thus the adhesion to the hands of the reapers which has gained for it oui- names "devil's claws," "hedge-hog," and "crows' claws "is echoed in France by "gratons," "chiuot (petit chien)," and "gousses = chieus " ; "les fruits sont ainsi appeles parce que leurs piquants les font adherer aux talons nus des pay sans et s'y attachent comme des chiens qui mordent." The dialectal French "bramefouam — c'est a dire qui appelle la faim, parce que cette plante fait le plus grand tort aux recoltes" — is paralleled by our "hunger weed" and " starve-acre." This last name is not given as English by M. Holland ; and a comparison of his list with that in the Dictionary of English Piant-natnes shows that of the twenty-eight names there given for Ranunculus arvensis, M. Rollaud cites only fourteen, so that he has hardly done justice to his English material. M. Eolland has been wise in excluding the rubbish in the way of spurious legend and tradition which is to be found in many "popular" books, but we are inclined to think that the folklore of the various species might be considerably extended. What there is, however, is genuine and interesting. It is curious to find that the popular superstition by which English nurses prevent their charges from gathering dandelions is about Liege transferred to buttercups, and in Languedoc to poppies ; our children's game (which M. Eolland does not mention) of holding a buttercup under the chin, to see by the reflection "if you like butter," has a variant in Denmark, where, "si en touchant la menton de la mcuagere avec une renoncule, il y reste des traces jaunes, clle reussira son beurre dans le courant de I'annee." M. Eolland does not always steer clear of ingenious derivations ; he thinks our English name poppy comes from " poupee " and relates to the dolls which French children make out of the flowers — an amusement " counue presque partout," he says, but which we have not met with in England. This is how it is done, according to Madame de Genlis : — "On fait da coquelicot bien epanoui une charmaute petite poupee. Les NEUE KALEALGEN VON DEUTSCH-NEU-GUINEA. NATURE-CHAT. 365 petales font rhabillemeut et les bras, au moyen des fils qui les rattaclicnt. La petite tete fait le visage ; le haut de cette tete forme une calotte ; les etamines font une jolie fraise ou collerette autour du visage." To which M. EoUand adds: "les petales doivent etre retournes et ramenes du cote de la tige, et on fait les jambes avec deux brins de graminces." M. Eolland's book is a valuable contribution to the popular natural history of plants, and we trust it will steadily proceed to its completion. t t> •■■ James JJeitten. Nene Kalkalfjenvon Deiitsch-Neu-Guinea. Von F. Heydrich. (Biblio- theca Botanica. Heft 41.) Stuttgart : Nagele. 1897. Price G Marks. Pp. viii, 11 ; 1 tab., 1 text-figure. Under the general name of Bibliutlicca Botanica, edited by Pro- fessors Luerssen and Frank, there have appeared at irregular intervals and at varied prices a series of original communications by all sorts of authors upon all sorts of botanical subjects. The present mono- graph on the calcareous algre of Kaiser Wilhelm's Land, or German New Guinea, forms the concluding part of Baud vii., and is remark- able for the liberal allowance of titles ^vhich it displays in proportion to text. Thus there is the title-page proper of the monograph; also that of Heft 41, which is duplicated on the cover; and finally that of Band vii. of the Bibliotheca Botanica, followed by a page of contents. These "outward limbs and flourishes" are no doubt essential to the book as a whole, but they occupy nearly half the present publication. The remaining text, however, is sufficiently solid and condensed to satisfy the most exacting algologist. Four new species of Litho- thamnion [L. taniiense, L. jnjijmaiim, L, Bamleri, L, onkodes) are described in full, and two others incompletely known are indicated without name. Three other new species described are Lithophyllum Jibidatuin, Pcyssonnelia taniiense [sic !] , and P. calcarca. Of most of these plants life-size photographs, reproduced by collotypy, are pro- vided, and give us a true conception of the external appearance of these calcareous seaweeds. Growing as many of them do on coral- reefs, the coralline algae are liable to be mistaken for true corals; and as time and investigation proceed we are likely to have several additions to the species. . P Nature-Chat. By Edward A. Martin, F.G.S. London : R. E. Taylor & Son. 8vo, pp. 141. Price Is. This is an example of the kind of volume which is put forwiard iu these bookmaking days by well-meaning persons who assume the teacher's chair when they should occupy a place on the learner's form. Mr. Martin's observations are at best trivial ; they are some- times inaccurate, as well as inconsistent. For example, he says (p. 14) that "the eight-rayed yellow disc" of the lesser celandine is, "our botanical friends tell us, not a corona of petals as one might think, but a calyx of sepals, beneath which appear three 306 ARTICLES IN JOURNALS. bracts." Mr. Martin is not fortunate in his "botanical friends," and we demur to his application of "disc" and "corona" in this context — perhaps "corona" is a misprint for "corolla"? — but what we wish to point out is that, after this piece of information, he tells us (p. 2G) that "the lesser celandine has always at least eight petals!" His botany, indeed, needs revision, for in this same note, having told us that "the buttercup tribe is a very puzzling one" (which, if we except the Batrachixim section, is hardly the case), he proceeds to differentiate our common species without any reference to the character afforded by the calyx. He speaks (p. 34) of the "blossom" of a grass when he means its inflorescence, and of "chestnut trees" (p. 106) when horse-chestnuts are intended. There is a tendency to fine writing, as when dead nettles are termed "gorgeous" (p. 51) and "magnificent" (p. 7); and an entire absence of anything like style. But the main defect of the book is its triviality: what is to be learned from such Ollendorlfian sentences as "I met with an iclmeumou-fly this morning in my garden. The everlasting-pea is just commencing to be in bloom." Mr. Martin no doubt has a genuine love for nature, and his efforts to induce others to share his enthusiasm are deserving of praise ; but we cannot thhik he was well advised in printing in book form the miscellaneous paragraphs which make np Nature-Chat. ARTICLES IN JOURNALS.'^- Bot. CentraJhlatt (Nos. 31-33). — F. Kuhla, ' Ueber Entstehung und Verbreituug des Phelloderms.' — (No. 34). F. M. Ludwig, ' Beitriige zur Phytarithmetik.' — N. J. Kusnezow, ' Edmnnd Russow ' (24 Feb. 1841-11 April, 1897). Bot. Gazette (31 July). — R. Thaxter, ' S)jncephalastrui)i and Syn- cephalis ' (2 pi.). — H. J. Webber, * Development of antherozoids of Zamia.' — E. W. D. Holway, 'Mexican Fungi ' {Fodosordaria, gen. nov.). — W. M. Kozlowski, ' Contribution to theory of movements of Diatoms.' — -J. M. Coulter & J. N. Rose, ' Revision of IJlffopsis' (Crantzia). — K. M. Wiegand, Euphorbia hirsuta (1 pi.). Bot. Zeitunij (16 Aug.). — F. Hegelmaier, * Zur Kenntniss der Polyembryonie von Allium odorum' (1 pi.). Bull, de Vllerh. Boissier (Aug.). — R. Keller, ' Hypericinefe Japonicae.' — G. Lindau, 'Acauthace?e americanaB et asiaticae.' — H. de Boisdieu, ' Les Saxifragees du Japon.' — R. Chodat, ' Sur deux Algues perforantes de I'lle de Man.' Bull. Torrey Bot. Club (29 July). — A. Hollick, Anomalophyllites Bridgetonensis, n. sp. (3 pi.). — J. K. Small, ' Studies in the Botany * The dates assigned to the numbers are those which appear on their covers or title-pages, but it must not always be inferred that this is the actual date of publication. BOOK-NOTES, NEWS, ETC. 367 of tlie South-eastern United States.' — G. V. Nash, ' New or note- worthy American Grasses.' Eri/thea (30 June). — A. Eastwood, ' CojiifercB of Santa Lucia Mountains.' — W. L. Jepson, ' Dr. Wilham P. Gibbons ' (Ap. 12, 1812-May 17, 1897). — (23 July). K. Brandegee, ' Notes on Erio- goneai.' — C. P. Nott, ' Parasitic Bloridea of Cahfornian Coast.' Gardeners' Chronicle (24 July). — Stapelia cupidaris N. E. Br., sp. n. — (14 Aug.). Eriopsis Helena Kranzl., sp. n. Journal de Botanique (16 July). — A. Franchet, ' Isopyrum et Coptis ' (concl.). — P. van Tieghem, ' Ovule et graine chez les Hydnoracees.' — E. Bonnet, ' Sur quelques hybrides.' Oesterr. Bot. Zeitschrift (Aug.). — F. Krasser, ' Coustantin Frei- herr von Ettingshausen ' (16 June, 1826-1 Feb. 1897 : portr.).— E. V. Halacsy, ' Beitrag zur Flora von Griechenland.' — J. Born- miiller, ' Cidamaf/roatia [jalesare)isis Torg. & Bornm., sp. n.' — V. Schiffner, ' Bryologische Mittheilungen aus Mittelbohmen.' BOOK-NOTES, NEWS, dc. M. Chodat contributes to the Bxdletin de VHerhier Boissier for August a paper "Sur deux Algnes perforantes de I'lle de Man," which he collected during the visit of the British Association to that island last year. He describes two new species, Gomontia manxiana and Hyella rohiticola, and refers Harlot's Siphonncladus vohiticola to Gomontia. Prof. Kranzlin announces for publication, under the title ( h-rhidacearum Geyiera et Species, a complete enumeration of the (h-chidacea. The work will occupy six volumes, the first of which, containing the Cypripediete and Ophrydecs, is already in print. Dr. Albert Schneider has prepared a new Text- Book of General Lichenulo(iii, containing descriptions and figures of the genera occurring in the North-eastern United States. The Kev. W. H. Painter, of Stirchley Rectory, Shifual, Salop, proposes to issue shortly, if a sufficient number of copies are sub- scribed for, a Supplement to his Contribution to the Flora of Derbyshire, which will contain additional habitats and records of the Mosses known in the northern and southern divisions of the county. The Supplement will contain sixty-four pages, and yill be issued at 2s. 6d. per copy and postage. Mr. Burkill informs us that Luffa agyptiaca is correctly included in his list of British Central African plants (see p. 320), although Momordica foetida was also distributed under the same Buchanan number. A new "journal of American science" is announced for publi- cation, named, after its proprietor, Orcutt. The prospectus says : — 368 BOOK-NOTES, NEWS, ETC. "No complimentary copies; no free samples; no exchanges; no advertisements in tlie text ; no premiums ; no discount to agents — the whole income going to make it better and larger! Botany and horticultural science will receive the greatest attention in the first numbers; botanists are invited to publish new species in its pages." In Thwiif/h Uiiknoum African Co2intrles (London: Edward Arnold; 21s. net) Dr. Donaldson Smith gives an account of his expedition — the first undertaken — from Somaliland to Lake Rudolf. It is a handsome volume, well prhited and illustrated, but its weight (4 It). 5^ oz.), owing to the paper employed, renders it a serious addition to a traveller's impedimenta. The natural history of the expedition is dealt with in a series of appendixes ; but the list of Dr. Smith's plants which was drawn up for him at the British Museum, where the specimens are deposited, is not included. This is to be regretted, as the collection contained many interesting species, the most remarkable of which were described in this Journal for 1896 ; one plate illustrating the new genera, Donaldsonia and GiUettia [Anther icopsis), is reproduced in the volume. Mr. E. a. Martin, whose Nature-Chat we notice on another page, must look to his laurels : as an interpreter of Nature's problems he is being run very close by a Mr. Harry Lowerison, who is con- tributing to London a series of papers entitled " The Naturalist in London." Here is an extract; those who wish to observe the re- markable "geranium in the border" will find it in Finsbury Park. "Here is a plant with the general habit and appearance of privet, only the leaves are broader and toothed, and the stamens are so long and feathery that one is not surprised to read the label and find that the shrub is really a variety of spirea. Many such 'gardeners varieties' we have in the parks. Students of the problems that underlie variation will find ample materials here ready to their hand. As a case in point, we can stop before this geranium in the border. Is it a simple crane's-bill that has originally, itself or forbears, grown in the fields, inadvertently been transplanted here, found itself in a richer soil, and, with better opportunities, made a big stride forward in size and fragrance ? Or, on the other hand, was it a pot plant neglected and starved, and consequently shrivelled, till some pitying gardener gave it a chance of better things in the open parterre ? One does not know, but here in a humble plant may be one of the 'missing links' that the non-scientific world taunted the great Darwin with not being able to produce. Here, continuing the same line of thought, is the Crattei/ns (jrandiflora, in English the large flowered hawthorn, a variety that has been for long cultivated for its big white or creamy corolla. Another variety of the same species I call the beech-leaved hawthorn, as under cultivation and careful manipulation it has lost the lobes that dis- tinguish the acanthus leaf, and the leaf margins now show an unbroken line like those of the beech." Talo. 373. R Morssai lith. West.NeiTman imp FlaliaTiltia palraata Bourt. 369 WELWrTSCII'S AFRICAN MARINE ALG.E. By Ethel 8. ]>ahton. (Plate 373.) [Most classes of the Angolan Algne are in general less abundant than in the extra-tropical zones, and they diminish in number of species from the littoral regions towards the mountainous country in the interior, until further inland the highlands are reached, where, with the necessary exception of the marine genera, the greatest number of species were found. Among the DcsmiiUacca;, Pt'niuiii Diijitus Breb. and Clostenum Lunula Ehrenb. are particularly abundant in stagnant pools in the coast region, Cladophora is a prevalent genus both in fresh water and in the sea ; the species of Oscilhitoiiit appear to be scarce in the rainy districts. In the highland region various species of Scyto- neina are produced in enormous quantities and of many colours ; it is a species of this genus which when prodigiously multiplied causes the black colour of the rocks of Pungo Andongo, commonly called Pedras Negras. Towards the interior of Angola species of Scyto- nema are found which cover extensive tracts with a red or rusty colour, and some of them are very frequent in the highlands of Pungo Andongo and on the plateau of Huilla, and there in- numerable plants of Ut lie ill (Ilia, Eriocaulon, Isoetes, Ccntniiculas, Ammannia, Stiiija, Buimannici, small ScirpidecB, Campanulace(F, parasitical Gentianea, and even some LegiiminofiCB, Selaginea, and MeUistomacetB are enabled to exist solely through the instrumentality of the Sci/tonemata which by night greedily absorb every dew-drop, and thus preserve the roots of the little plants which they cover from drying up by day under the influence of the burning tropical sun. Some large species of Batrachospernnun, all previously unde- scribed, inhabit the streams of Pungo Andongo and Huilla, growing in the former district in company with two species of Podostemoii. The red sea-weeds are more numerous than the brown, and they are distributed among many genera ; a diminutive species of Bostri/chia resides on the bark of Bhiwphoni Maiujle L., and with its yellow-green colour clothes the trunks just like a moss, being bathed with sea-water at high tide. UUilcnhiandtia is represented by two species, one of which is new and abounds in the streams of Golungo Alto, ornamenting the submerged rocks and stones with a network of a blood-red colour. (See Welwitsch, Apont. 533.) A census of the collection of AlgiC, as determined by Miss IJarton and the Messrs. West, respectively, shows 39 marine species in 32 genera, and 300 freshwater species in 77 genera; among the latter 80 species occurred in the littoral districts of Angola or in the African islands visited by Welwitsch, and 255 in the moun- tainous districts or highland districts of Angola ; only one iiew species of marine algre is described, but a large proportion of the freshwater algna are new and contain lOG new species and 8 new genera, two of the latter constituting new orders, namely, Tcmno- Journal of Botany, — Vol, 35. [Oct, 1897-] 2 u iilO WELWITSCH's AFRICAN MARINE ALG.E. gainetacecE in Coiijugatce, and Cainptotrichece in Hormojjonece Homo- CIJSteCB. W. P. HiERN.] Cyanophyce^. 1. Hyella Born. & Flab, in Morot, Jouru. de Bot. 1888, ii. 162. 1. H. c^spitosa Born. & Flah. Loanda : near the shore ; March, 1854. No. 36a. Geogr. Distr. North Atlantic, Mediterranean, Cape of Good Hope. Chlorophyce^. 1. Ulva L. Gen. 326. 1. U. Lactuca L. Loanda : on the shore ; Feb. 1854. Near S. Pedro ; July, 1854. No. 33. Oeoc/r. Distr. N. Atlantic, North Sea, Mediterranean, West Indies, South Pacific {/ide De Toni), Australia. 2. U. fasciata Del. Loanda: on rocks of the sea near S. Pedro, Morro de Lagostas, frequent ; Feb. and July, 1854. No. 34. Geogr. Distr. General in warm seas. 2. Entocladia Reinke in Bot. Zeit. 1879, 476. 1. E. viRiDis Reinke. Loanda: in NitophyUmn ; July, 1854. No. 100. Geogr. Distr. North Sea, Mediterranean, Adriatic. 3. Dasycladus Ag. in Reg. Flora, 1827, ii. 640. 1. D. cLAV^FORMis Ag. Madeira: Funchal. No. 266. Geogr. Distr. North Atlantic, Mediterranean, West Indies. 4. Caulerpa Lam. in Desv. Journ. Bot. ii. 141. 1. C. Selago Ag. St. Vincent, Ciipe de Verde: on rocks covered by volcanic sand; Aug. 1853. No. 214. Geogr. Distr. Red Sea, West Indies. 2. C. scalpelliformis Ag. Loanda : S. Pedro ; Feb. 1854. No. 46. Island of St. Thomas : on the shore of the island (below the equator), together with Codiiim. tomentosuni ; Dec. 1860. No. 262. Geogr. Distr. Indian Ocean, Australia. 3. C. clavifera Ag. St. Vincent, Cape de Verde : very rare on rocks covered with volcanic sand, Porto de Mindello ; 22 Aug., 1853. No. 215. Geogr. Distr. In tropical seas, and Cape of Good Hope. 5. CoDiuM Stackh. Ner. Br. p. xvi. 1. C. elongatum Ag. Loanda : thrown up on the shores of the island, near S. Pedro ; Oct. 1853 ; Feb. and May, 1854. _ No. 48. Geogr. Distr. North and South Atlantic, North Pacific, Medi- terranean, Indian Ocean, Cape of Good Hope, Australia, 2. C. tomentosum Stackh. Loanda, frequent; Feb. 1854. No. 47. Geogr. Distr. General, WELWITSCH's AFRICAN MARINE ALG^E. 371 6. Halimeda Lam. in Nouv. Bull. Soc. Philom. Nov. 1812, 186. 1. H. Tuna Lam. St. Vincent, Cape de Verde : rare on basaltic shore ; Aug. 1853. No. 247. Geoyr. Distr. North Atlantic, Mediterranean, West Indies. Ph^ophyce^. 1. Cystoseira kg. Sp. i. 50. 1. C. Abies-marina Ag. St. Vincent, Cape de Verde: rather frequent and well-developed on volcanic rocks near Praia de Gal^ ; 20 Aug. 1853. No. 221. Geogr. Distr. North Atlantic, Mediterranean. 2. Padina Adans. Fam. des Plantes, pt. ii. 13. 1. P. Pavonia Lam. Loanda : on rocks close to the shore of the ocean near S. Pedro, frequent; Feb. and July, 1854. No. 40. St. Vincent, Cape de Verde : thrown up near Praia de Gal^ ; Sept. 1853. No. 210. Geogr. Distr. General in temperate and warm oceans. 3. DicTYOTA Lam. in Desv. Journ. Bot. ii. 38. 1. D. DicHOTOMA Lam. Prince's Island : on rocks of the ocean, not infrequent, close to the shore. Bahia de St. Antonio ; 20 Sept. 1853. No. 258. Geogr. Distr. Warm and temperate oceans. 4. Hydroclathrus Bory in Diet. Class, viii. 1825, 419. 1. H. cancellatus Bory. Loanda : thrown up by the Atlantic at Praia de Gamba, frequent ; 4 Dec. 1853 ; 3 Feb. 1854. No. 45. Geogr. Distr. Warm Atlantic, North and South Pacific, Indian Ocean, Australia. 5. Colpomenia Derb. & Sol. M^m. Phys. Alg. 11. 1. C. sinuosa Derb. & Sol. Loanda : thrown up by the ocean near S. Pedro, very rare. No. 44. Madeira : Funchal, 1852. No. 265. Geogr. Distr. Warm Atlantic, North and South Pacific, Indian Ocean, Mediterranean and Adriatic, Australia. FlORIDEjE. 1. Galaxaura Lam. Polyp. Flex. 259. 1, G. fragilis Dene. Very frequent on the shores of St. Vin- cent, Cape de Verde, thrown up by the sea in great abundance. Island of St. Vincent, Cape de Verde : on volcanic rocks near Praia de Gal6, especially frequent ; 21 Aug. 1853. No. 220. Geogr. Distr. In warm and tropical seas. 2. G. OBTUSATA J. Ag. Loanda, 1854. No. 275. Geogr. Distr. Warm Atlantic, Cape of Good Hope. 2. Caulacanthus Kiitz. Phyc. Gen. 395. 1. C. usTULATUs Kiltz. Mossamodcs : vory frequent on calcareous rocks of the sea near Mossamedes ; July, 1859. No. 76. Frequent 2 B 2 372 welwitsch's African marine alg.t;. oil calcareous and saudstone submarine rocks near Mossamedes ; July, 1859. No. 77. St. Vincent, Cape de Verde : on the shore, Praia de Gale ; Aug. 1853. No. 230. Geogr. Diatr. Atlantic, Mediterranean, Cape of Good Hope, China Sea. 8. Gelidium Lam. in Ann. Mus. Hist. Nat. Paris, xx. 1813, 128. 1. G. coRNEUM Lam. Benguella : on Patellae thrown up by the Atlantic near Benguella ; June, 1859. No. 75. Loanda : on rocks near S. Pedro, frequently covering all the rocks ; July, 1854. No. 50. Geogr. Distr. Throughout all oceans. 4. GiGARTiNA Lam. Ann. Mus. Hist. Nat. Paris, xx. 1813, 134. 1. G. Teedii J. Ag. Loanda: Morro das Lagaotas, rare ; July, 1854. No. 117. Geogr. Distr. Warm Atlantic, Mediterranean, Cape of GoodHope. 5. Flahaultia Born. Alg. Schousb. 278. 1. F. palmata, sp. u. Fronde gelatinoso-membranacea, evi- denter stipitata, a disco radicali in laminam usque 25 cm. altam, subpalmatam, aut in lacinias irregulariter fissam, cuneatim expansa ; margine sa^pe prolifero ; segmentis fertilibus minute fimbriatis ; cystocarpiis margiualibus, carpostomio apertis. Soris tetrasporarum indefinitis per totam superficiem sparsis. (Plate 373.) A F. appendicnlnta Born., liabitu nonnunquam subsimili, im- primis differt cystocarpiis marginalibus et sporangiis per totam frondem sparsis. Loanda : frequent near Morro das Lagostas; Jan. 1854. No. 65. Angola, Fort Conceieao ; July, 1854. Nus. 78, 80. On shells and rocks near Morro das Lagostas, frequent; Jan. 1854. No. 99. 6. Gracilaeia Grev. Alg. Brit. 121. 1. G. confervoides Grev. Loanda: thrown up on the island, rare ; Jan. 1854. No. 95. Geogr. Distr. Throughout all seas. 7. Hypnea Lam. in Ann. Mus. Hist. Nat. Paris, xx. 131, 1813. 1. H. MUsciFORMis Lam. Loanda: when living, mostly pale brown and fragile ; when thrown up and exposed to the air it becomes flaccid and of a red, purple, and orange colour, variegated. Fruit occurs rarely. Frequent and of various forms on rocks, shells and other alga? on the shores of Loanda, where large quantities are thrown up. On coralline rocks near S. Pedro; July, 1854. No. 84. St. Vincent, Cape de Verde : on volcanic rocks and on other algfe on the shore, frequent. Praia de Gale, Aug. 1853. No. 250. Geogr. Di.^tr. Warm Atlantic, Indian and Southern Oceans. 8. Rhodymenia J. Ag. Alg. Liebm. 15. 1. R. PALMETTA J. Ag. Loaiula : on rocks at Morro das La- gostas; Jan. 1854. No. 115. Geogr. Distr. North Atlantic. WELWITSCH's AFRICAN MARINE ALG.E. 373 9. Cheysymenia J. Ag. Alg. Med. et Adriat. 105. 1. C. uvaria J. Ag, St. Viucent, Cape de Yerde : ou the shores. Wlien alive, rose-purple, wiue-colour ; Aug. 1853. No. 210. Geof/r. Dlstr. Warm Atlantic (Europe and America), Cape of Good Hope. 10. Plocamium Lam. Ann. Mus. Hist. Nat. Paris, xx. 137, 1813. 1. P. cocciNEUM Lyugbye. St. Vincent, Cape de Verde: on volcanic rocks near Praia de Gale ; 21 Aug. 1853. No. 241. Geo(/r. Vistr. North Atlantic, North Pacific, West Indies, Cape of Good Hope, Australia, Tasmania. 11. AcANTHOPHORA Lam. in Ann. Mus. Hist. Nat. Paris, xx. 132, 1813. 1. A. Thierii Lam. Loanda : on shells near the shore of the island Loauda and Ilha dos Passeros ; Jan. and April, 1854. No. 112. Loanda, Oct. 1853. No. 113. On oyster-shells near Cabo Lombo ; 28 Nov. 1853. No. 114. Geoijr. Dlstr. Warm Atlantic (western shores), Europe (Biarritz), Australia. 12. PoLYSiPHONiA Grev. Flora Edin. 308. 1. P. elongata Harv. Loanda : on rocks on the Atlantic shores of Loanda near Fort S. Pedro and Concei9ao, frequently thrown up; Dec. 1853 and Jan. 1854. No. 52. (Jeo[/r. Dlstr. North Atlantic, West Lidies, Mediterranean, Adriatic and Black Sea. 2. P. pennata J. Ag. Loanda : on rocks of the Loanda shore near Fort S. Pedro ; Feb. 1854. Penedo, July, 1854. No. 96. Geoyr. Dlstr. Atlantic shores of Europe, Mediterranean, Aus- tralia. 13. BosTRYCHiA Mont, in Sagra Hist. Cuba, Paris, 1838-42, 39. 1. B. TENELLA J. Ag. Loauda : on irnuks oi RhlzopJwra Manc/le immersed at high water, near Cabo Lombo, on the shores of Loanda, occurring rarely, but always broadly cajspitose, covering the trunks exactly like a Lhjpnum ; 29 Nov. 1853. Nos. 59, 60. Geoijr. Distr. West Indies, Cape of Good Hope, Indian Ocean, Friendly Islands. 14. Spyridia Harv. in Hook. Br. Fl. ii. pt. i. 1833, 336. 1. S. aculeata Kiitz. St. Vincent, Cape de Verde ; 22 Aug. 1853. No. 217. 2. S. CLAVATA Kiitz. Loanda : on the shore, thrown up by the ocean ; this one specimen near Fort de Concei^ao ; Jan. 18'54. No. 58. Geoyr. Distr. North Atlantic (Spain), West Indies, Mediter- ranean, Red Sea. 15. Cerajiium Roth, Cat. Bot. iii. 106. 1. C. diaphanum Roth. Loanda: Morro das Lagostas, on a species of Jli/pnea, &c. ; Jan. 1854. No. 67, and on 65. Geoyr. Distr. Atlantic (Europe), West Indies, Cape of Good Hope. 374 welwitsch's African marine alg^e. 16. Centroceeas Kiitz. in Limiaea, 1841, 741. 1. C. clavulatum Mont. Loanda: on rocks covered by sand on the shore near Fort de Concei^ao ; Dec. 1853. No. 61. Near S. Pedro ; Feb. and April, 1854. No. 64. On rocks of the sea near Morro das Lagostas and S. Pedro, frequent; Jan. 1854. No. 66. Geofjr. Dlstr. Tliroughout all tropical and subtropical seas. 17. Peyssonelia Dene. PI. Arab. 168. 1. P. RUBRA J. Ag. Loanda: on rocks and various algae, Praia de Penedo ; Jan. and Feb. 1854. No. 121. Island of Loanda, May, 1854, No. 123. St, Vincent, Cape de Verde : on rocks and various algte near volcanic rocks, but rarely well developed ; 22 Aug, 1858. No. 233. Prince's Island : on rocks in the Atlantic, here and there, growing gregariously ; 21 Sept. 1853. No. 256. (Jeogr. Distr. Adriatic, West Indies. 2. P. Harveyana Crn. Loanda : Morro das Lagostas, July, 1854. No. 122. St. Vincent, Cape de Verde: Praia de Gale, 22 Aug. 1853, No. 236. Geogr. Distr. Atlantic shores of Europe. 18. Grateloupia Ag, Spec. Alg. i, 221. 1, G, LANCEOLA J, Ag, Loanda : fronds gregarious, chiefly covering the sides of rocks and stones ; fertile plants always much branched, when sterile smaller. Colour when alive a dark steely purple. Hab. on the Angola shores near Morro das Lagostas, rare, on rocks ; July, 1864. No. 120. Geogr. Distr. North Atlantic (Africa). 19. Melobesia Lam, Hist, Polyp, Flex, 313, 1, M, corticiformis Kiitz, St. Vincent, Cape de Verde: on the fronds of Gelidium rigidwn, on the shore ; Aug, 1853. No. 251. Geogr. Distr. Atlantic, Mediterranean, Cape of Good Hope, 20, CoRALLiNA L, Syst, Nat, ed. 12, i, pt. ii. 1304. 1. C. OFFICINALIS L. Madeira: Praia de Camara dos lobes; Aug. 1853. With No. 268. Geogr. Distr. Arctic Sea, North and South Atlantic, Mediter- ranean, Black Sea, Cape of Good Hope, West Indies, North and South Pacific, Australia. A certain number of the algae collected by Dr. Welwitsch are not sufficiently well preserved to be named specifically, and are therefore not given here. Among these are species of Cgonophycece, Cladophora, Sargassum, Dictijota, Corallinea;, Gracilaria, Pohjsiphonia, and Nitophylluui. The material of Flahmdtia palmata, being dry, was not good enough to enable an accurate figure of the entire cystocarp to be made. It agrees in all respects with the figure by Dr. Bornet in his paper on Schousboe"s Alg» (Alg. Schousb. Mem. Soc. Sci. Nat. Cherb. t. xxviii. 1892, pi. h. fig. 5). My thanks are due to Mr. Batters for his kind help in determining several species. 375 NEW AND INTERESTING ACANTHACEyE COLLECTED BY MrS. LoRT PhILLIPS IN SoMALI-LAXD, 189G-7. By a. B. Rendle, M.A., F.L.S. Blepharis Phillipsese, sp. n. Fruticulosa caule canescente, foliis minntis crassiusculis 1-verticillatis ellipticis vel oblongo- ellipticis muci'onatis integris albide-scabridulis ; Horibus solilariis sessilibus ramulos contractos terminantibus, cum bracteis decus- santibus ellipticis apice 3-spinulosis, calyce brevioribus, pra-eunti- bus ; sepalo postico cuneato-oblanceolato 3-nervio apice acute et breviter trifido, antico minore 2-nervio lineari-oblongo, apice minute 2-spiiiuloso, lateralibus brevioribus anguste lanceolatis, mucronatis ; corolla flava, tubo urceolato, limbo curvulo maguo rhomboideo-ovali apice 3-lobulato omnino puberulo ; staminibus subaequalibus ; ovulis 2. Hab. Bihen, Mrs. E. Lort Phillips. Described from a small irregularly branching shoot, 22 cm. long; 2 mm. in diameter in the older portion. The slender terete young twigs are covered with short flexuose whitish hairs, gradually disappearing in the older parts of the shoot, which show a tbin white-striated bark. Leaves pale green, 'o cm. long, and half as broad; apex round, with a short pungent mucro ; surface covered with numerous hard white round wartlets ; midrib hairy on the back. Flowers preceded by four pairs of gradually increasing decussating rigid bracts, more or less elliptical, with tlie prominent midrib and two less prominent parallel lateral veins produced into sharp rigid spines ; uppermost pair oblong-elliptical, slightly narrowing at the base, with lateral spines minute ; lowest pair 3 mm. long, uppermost 11 mm. ; exposed portions suffused and streaked with brown. Anterior sepal prominently 2-nerved, streaked with brown in upper half, 13 mm. long by 3 mm. broad ; posterior 14 by 5 mm., more deeply coloured, lateral sepals weaker, one-nerved, with transparent margin, 11 by 2 mm. Corolla-tube stout, rigid, 6 mm. long, 3*5 mm. in diameter below the con- striction, with a short triangular posterior notch ; a ring of stiff white hairs attached on the inside at the constriction roofs in the lower part of the tube. Limb 1*5 cm. long by 1 cm. broad; mid- rib much thickened and glabrous in the lower third. Stamens in- serted at the mouth of the tube ; anterior broadly laterally flat- tened, 6 by 1*5 mm., anther 3 mm. long, with a broad hairy fringed margin ; posterior with an upwardly arching base, terete, anthers (3 mm. long) with a brush of white hairs on the posterior face, and a hairy fringe on their adjacent margins. Ovary ovoid- obloug (2'25 mm. long), girt at the base with a shallow fleshy disc with a wavy margin, and crowned by a yellowish unilateral gland at the base of tlie style; style 8 mm. long, flattened, and bearing a central raised longitudinal furrow in the lower part. Recalls the Socotran Ji. siiicuUfolia Balf. fil. in habit and small foliage ; that, however, has larger oblanceolate leaves, entire outer sepals, and a smaller corolla with a 5-lobulate limb. 376 NEW AND INTERESTING ACANTHACE.E. Barleria (§ Eubarleria) Hildebrandtii S. Moore in Journ. Bot. 1877, GO. Wagga Mouutaiu, facing south, 5000 ft., Mrs. E. Lort Phillips. A \evy fine specimen, 66 cm. high, with a stem reaching 1 cm. in diameter at the base, and leaves larger than iu the type (to 2*5 cm. long by 1-6 cm. broad), with the same stellate tomentum, and scattered long yellow strigose hairs. In the following I am able to supplement the original description : — Flowers mauve. Fruit glabrous, one-third shorter than the large outer calyx- segments, and slightly exceeding the inner narrow sepals, 1 cm. long and half as broad ; compressed ellipsoid narrowing abruptly at the apex to a short stout beak. Seecls one in each chamber, orbicular with a subcordate base, barely '5 cm. long and broad, with a dense appressed woolly covering. The type-plant was collectedby Hildebrandt on the " Ahlgebirge," Somali-land, at a height of 1500 to 2000 metres. Barleria (§ Eubarleria) rotundisepala, sp. n. Fruticulosa caule ramisque cinereo-pubesceutibus et minute glanduligeris ; foliis breviter petiolatis ellipticis, interdum oblongo- vel ovato- ellipticis, dense appresso-pilosis ; iioribus inter mediocres in ramulis brevibus dichasialibus vel abortu solitariis, pedicellis brevibus, bracteis foliaceis vel minoribus ; sepalis 2 exterioribus maguis orbicularibus, dorso appresso-pilosis, inargine minute glanduli- geris, 2 interioribus triplo minoribus crassiusculis lanceolatis acutis ; corolla inconspicue bilabiata, lobo antico obovato integro, lobis 4 posticis altius counatis obovatis interioribus angustioribus, retusis, tubo subcylindrico superne subampliato ; staminodiis 3 minutis, postico altius aftixo ; ovario ovato pubescente. Hab. Wagga Mountain, Mrs. E. Lort Phillips. A small shrub, 25 cm. high, with short irregularly patent and ascending branches, and a stout reddish brown main root with slender reddish branches. Leaves generally between 2 and 3 cm. long by 1 to 1-75 cm. broad, excluding tlie petiole of 3-5 mm. long; apex rounded, base rounded or very blunt. Bracteoles small sub- oblanceobite about "5 cm. long, hairy like the leaves. Flower- pedicel 5 mm. long. Posterior sepal generally 11 mm. long and broad, sometimes slightly ovate, and scarcely as broad as long ; anterior sepal slightly smaller ; lateral sepals completely hidden by the outer, scarcely 4 mm. long. Corolla-tube 1 cm. long, slightly constricted at the insertion of the stamens, 2-5 mm. above the base, about 2 mm. in diameter at the constriction, widening very gradually to nearly 4 mm. at the mouth. Anterior lobo 9 mm. long by 7 mm. broad; outer (lower) posterior lobes 7 mm. by 6 mm., inner 7 mm. by 4-5 mm. Filaments of stamens 1*5 cm. long, anthers 2 mm., staminodes less than 1 mm. Filiform style 1.5 cm., sparsely hairy at the base. Ovary 3 mm. long, covered with a sliort pubescence. Near the Abyssinian B. orbicularis T. And., which, however, is less hairy, has narrower papery leaves, cordate outer sepals, and shorter corolla lobes. NEW AND INTERESTING ACANTHACEiE. 377 Barleria (§ Prionitis) waggana, sp. n. Fruticulosa caule cinereo-pubescente, foliis sessilibus, cuneato-oblongis, interclum cuneatis, apice rotuudatis mucronatis, dorso dense appresso-villosis ; spinis breviter stipitatis, stepissime 4-fidis ; floribus apice ramorum dense aggregatis ; bracteis bracteolisque dorso et margine hirsutulis oblougo-linearibus longe acuminatis superioribus subulatis, omni- bus apice puugeutibus ; floribus inter mediocres sessilibus, sepalis exterioribus ovatis, interioribus lanceolatis longissime acuminatis apice pungentibus, margine scabride-ciliatis ; corollae tubo longo cylindrico, lobis suba?qualibus, lobo antico spathulato, lobis 4 pos- ticis oblanceolato-cuneatis obtusis ; staminodiis 2 brevibus glabris ; ovario glabro. Hab. Wagga Mountain, Mrs. E. Lort Phillips. Described from a single specimen consisting of a small branch about six inches long. Leaves on short lateral flowering branch- lets, and below the inflorescence 1-75 to 2-5 cm. long by G to 9 mm. broad, covered, especially on the back, with short stiff white appressed hairs. Axillary spines white, branching dichotomously above a pedicel of 2-4 mm. into four (rarely three) arms, which reach 2 cm. in length. Flowers crowded into small shortly hairy pungent heads, made up of very short dichasia, the two lateral flowers of which abort. Lowermost bracts foliaceous, upper be- coming narrow and more pungent, passing into the subulate bracteoles ; length (including bracteoles) from lh-1 cm. Outer calyx-segments 14 mm. long by 2-5 mm. broad, inner 13 mm. long by 1*5 mm. Corolla-tube 12 mm. long by 2 mm. in diameter; lobes about 1 cm. long by -5 cm. wide. Filaments of long perfect stamens 1-5 cm. long, anther 2 mm., staminodes 2 mm., including the minute anther. Hypogynous disc asymmetrical, with an irre- gularly crenate margin. iStyle 2 cm. Ovary 3 mm. long. Probably near B. quadrispina Lindau, which I have not seen, and of which flowers and fruit are unknown! The leaves are, however, larger, with a tendency to a lanceolate shape. Barleria (Prionitis) mucronifolia Lindau in Ann. R. Istit. Botan. Roma, vi. 71. xi small branch bearing two lateral in- florescences, from the flowers of which the corolla has dropped, though the fruit is still unripe, apparently belongs (from the de- scription) to this species, collected by Riva near Hamari, in Somali- land. It was found at Dimoleh byF. Gillett and G. P. V. Aylmer. Unripe fruit 9 mm. long, including short beak ; black, glabrous, with two superposed compressed black seeds in each chamber. A fragment of the same plant occurs on a sheet of Forskohl ("ex oriente") along with />'. aauitlundcs Vahl. ' Barleria (^^ Somalia) Phillipseae, sp. n. Fruticulosa foliis sub- sessilibus elliptico-oblongis apice rotuudatis, in margine et costa media cum pills bibrachiatis albis strigosis ; floribus parvis paucis solitariis axillaribus subsessilibus ; bracteolis lanceolatis ; calycis laciniis antero-posterioribus ovato-lanceolatis, acutis, lateralibus duplo brevioribus subulatis ; corolla inconspicue bilabiata, lobo antico majore suborbiculari vix retuso, lobo postico breviter et 378 NEW AND INTERESTING ACANTHACE^. ffiqualiter 4-lobulato, externe puberulo ; staminodiis 3 minutis ; capsula glabra. Hab. Wagga Mountain, Mrs. E. Lort Phillips. Apparently a small low-growing plant, specimens not exceeding 5 in. Branches slender, densely covered with appressed 2-armed hairs, among which are short capitate glandular hairs. Leaves 2 to 2-5 cm. long, including a very short petiole (1-3 mm.) by 6-7 mm. broad ; sage-green. Pedicel 1*5 mm. long, bracteoles immediately beneath the calyx, 10 mm. long by scarcely 3 mm. broad, margin and midrib hairy as in the leaves. Outer calyx-segments with a line of similar stiff white hairs outside on the midrib, and a few short glandular hairs, 11 mm. long by 3 mm. broad ; inner seg- ments with a line of hairs running from two-thirds the length up, 5-3 mm. long by less than 1 mm. broad. Corolla 11 mm. long, tube 5 mm. long, anterior lobe 5*5 mm. each way, lobes of the posterior lip rounded, 3 by 2-7 mm. Filaments of fertile (two) stamens G-5 mm. long, anthers scarcely 2 mm. ; staminodes minute, subulate, about 5 mm. long. Ovary girt at the base with a short asymmetrical disc, loculi 1-ovuled, with a minute rudiment of a lower second ovule. Capsule unripe. Apparently near B. paucijiom Schw., whatever that insufficiently known species may be. Justicia (§ Tyloglossa) Phillipseae, sp. n. Fruticosa diffusa hispidula, foliis parvis breviter petiolatis ovatis vel lanceolatis obtusis ; floribus sessilibus in cymis dichasiis axillaribus 1-pauci- floris contractis ; bracteis parvis foliaceis, bracteolis minutis ovatis; calyce fere ad basin aequaliter 5-partito, segmentis angustis superne attenuatis acutis 3-nerviis ; corolla Ifete purpurea sparse puberula tubo veutricoso, labio postico truncate-ovato apice breviter bilobo, antico 3-lobo, lobo medio e basi truncata oblongo, lobis lateralibus paullo angustioribus ; antherte loculo inferiore appendiculato. Hab. Wagga Mountain ; Upper Sheik ; and between Debar and Hammer, Mrs. E. Lort Phillips. A shrub with long slender terete spreading branches. Leaves like the stem, more or less shortly hispidulous ; petioles 2-3 mm. long, blades from 6 to 20 mm. long. Flowers apparently solitary, but arranged in contracted axillary dichasial cymes, on which generally only one develops. Bracts ovate, 5 mm. long ; bracteoles 1 mm. long, immediately below the calyx. Calyx-segments 7 mm., tapering upwards from a base of a little over 1 mm. Corolla-tube 5 mm. long, with a diameter of 2 mm. ; posterior lip suberect, 6 mm. long, narrowing upwards from the base, where it is 4 mm. broad, to 2 mm. at the shortly bilobed apex. Anterior lip 1 cm. long, centre lobe 4 by 4 mm., lateral lobes 4 by 3-5 mm. Stamens 5 mm. long, upper anther-cell 1 mm. long, lower slightly larger, with a basal appendage about half its length. Ovary oblong-ovate, scarcely 2 mm. long, girt with an annular disc '5 mm. high. Style 7 mm. long, sparsely hairy at the base ; the transparent walls allow the enclosed pair of superposed ovules to be seen in each cell. Near J. calcarata Hochst., from which it differs in habit; in its NEW AND INTERESTING ACANTHACE^. 379 smaller more or less ovate leaves, narrower and longer calyx- segments, and shorter ventricose coi'olla-tube. Justicia (§ Tyloglossa) Lortese, sp. n. Fruticosa diffusa ramis glabris albescentibus ; foliis sessilibus anguste lineari-ob- lauceolatis sspe plus minus convolutis glabris, apice submucronu- lato ; cymis Sfepius 2-3-floris, axillaribus, sessilibus ; lloribus inter minores, bracteis foliaceis, bracteolis ultimis minutis acutis ; calyce fere ad basin 5-partito, segmentis sub^qualibus, angustis e basi attenuatis, acutis glabris, cum margine scabridula ; corolla flava utrinque puberula, tubo ventricoso ore dilatato, labio postico apice bilobo et crispubito ; autico 3-lobo, lobo medio latiore, disco buUato venulis conspicuis radiatim lineato ; antherte appendice compresso emarginato ; capsula acuta 4-sperma, semiuibus verrucosis. Hab. Wagga Mountain and Bihen, Mrs. E. Lort Phillips. Apparently a small shrub, with slender subterete irregularly spreading branches. Leaves 1 to 3"5 cm. loug by 1 to 3*5 mm. broad. Small axillary congested inflorescences numerous, from the base to apex of the branches. Calyx-segments 4 mm. long, corolla bright yellow, tube 6 mm. long by 3 mm. in diameter below dilating to 4 mm. at the mouth, and bearing a pair of long wing- like invaginations diverging upwards to the base of the lower lip, and a pair of hairy keels parallel with and posterior to the base of filaments ; upper lip 7 to 8 mm. long, narrowing upwards from a base of G mm. to 2 mm. just below the slightly dilated apex ; lower lip 8"5 to 10 mm., lobes bluntly rounded, median 4 to 5 mm. long and almost as broad, laterals 3*5 to 4 mm. loug by 2-5 to 3'5 mm. broad. Stamens 6 mm, long, lower anther 1-3 mm. long, bearing an emarginate appendage about half its length ; upper anther slightly smaller. Style nearly 8 mm. loug, sparsely hairy below. PVuit unripe, 1-5 cm. long, more or less elliptically oblong, narrow- ing at the base, apex shortly mucronate. ^BAv J. jilifulia Juindiin, which, however, has smaller flowers, whitish in colour, with a rosy disc. Ecbolium parvibracteatum, sp. n. Frutex pubescens foliis magnis petiolatis ovatis interdum ovalibus ; floribus in cymis dichasialibus sessilibus oppositis in spicis terminalibus aggregatis ; bracteis quam floribus multoties brevioribus ovatis acutis ; calyce regulariter 5-partito, segmentis lauceolatis acutis ; corolla) tubo longo tenuiter cylnidrico, labio postico manco e basi lata ad apicem subtruncatum cucuUatum bilobulatum angustato, labio antico in- signiore, lobis 3 ellipticis, medio quam laterales paullo latiore. Hab. In ravine, Wagga Mountain, Mrs. E. Lort Philhps and Miss F. Gillett. A bushy shrub, the stoutish branches, leaves, and inflorescence covered with a short white pubescence. Petioles about 1 cm. long. Leaves generally ovate, the smaller sometimes oval, subobtuse or sometimes subacuminate, entire, bright green, 0-11 cm. long by 8 to 7 cm. broad. Spikes dense, 4 to 7 cm. loug. Bracts small, caducous, 3-4 mm. long. Bracteoles similar, but bcarcely 2 mm. long. Calyx divided almost to the base, segments scarcely 5 mm. long. Corolla-tube 22 mm. long by l-i> mm. in diameter ; posterior 380 STACHYS ALPINA L. IN BKITAlN. lip insignificant, 8 mm. long, narrowing upwards from nearly 5 mm. at the base to 1-5 mm. below the apex ; anterior lip spread- ing, 1 cm. long, lobes 7 mm. long, the median 4-5 mm. broad, the lateral scarcely 4 mm. Stamens -5 cm. long, incliuling the anther- cells (3 mm.), which are parallel, but not quite on the same level. Style filiform, red, sparsely hairy at base, 22 mm. long. Ovary pubescent, ovately oblong, 4 mm. long, girt by a short annular disc at base. Fruit brown, 2 cm. long, lower third forming a narrow stalk ; upper discoid, containing the brown flattened suborbicular seeds (8 mm. long by 7 mm. broad), with indented hilum and rugose surface. A striking plant, with the habit of /•-'. Linneanum Kurz, from which, however, it is at once distinguished by its minute bracts. The collection also contains specimens of Asystasia Colete Eolfe, from Wagga Mountains and Upper Sheik, which was described from plants collected in Somali-land by Mrs. Phillips and Miss Cole in 1895 ; and Ruellia discifolia Oliver (from Sok Soda and Wagga Mountains), discovered by Messrs. James and Thrupp. STACHYS ALPINA L. IN BRITAIN. By Cedkic Bucknall, Mus. Bac. Oxon. Within the last twenty years the botany of the district of the Bristol coal-field has been well investigated, but that corner of it into which the southern spurs of the Cotswold hills extend is com- paratively unexplored, although it has enriched the local flora with many good plants. On the 80th of June of this year I made an excursion to a wooded hill near Wotton-under-Edge, the upper part of which consists of upper lias sands capped with oolitic limestone, and is between 600 and 700 ft. high. A part of the underwood had been cut within the last year or two, and the ground was covered with a luxuriant growth of different species of Hi/perkuw, Ettbiis, LabiatcB, &c. Amongst the latter was a Stachi/s which I at once recognized as difl'erent from any which I had seen in England, and on examination and comparison it proved to be Stachys aJpina L., of which I had gathered specimens last year in Switzerland. In the following week the locality was carefully examined by Mr. J. W. White and myself. We found the plant to be thinly scattered through the more open portions of the wood, and it occurred also in thickets below the wood and by a roadside lower down, on the lias sands ; the whole area as at present known being less than a square mile. The plant has every appearance of being native, but if this be so, it may appear strange that it should hitherto have escaped notice. It must, however, be remembered that the visits of botanists who would be likely to notice such a plant being few and far between, and the coppice being probably only cut at intervals of fifteen or twenty years, it would be a matter of chance whether it was explored at a time when the plant could XOTES OX SPECIES OF LOTUS J PEDROSIA. 381 be seen without careful search. Moreover, it might be readily con- founded with S. ai/h-atica or one of its hybrids ; and this has in fact happened within the last few weeks, when the plant was submitted to an eminent botanist. I am not aware that -S'. alpina has ever been met with in Britain as an intioduced plant, and it seems most unlikely that, possessing no beauty or interest except to a botanist, it should have been deliberately sown or planted in many different places in such a locality. With regard to its limited range, which will no doubt be ex- tended on further search being made, a comparison may be made with several other plants which are confined to one or at most two limited areas in Britain, and have a similar distribution in neigh- bouring countries on tiie Continent: e.g. Arabis stricta (France, Spain), Heliantheuium polifulium (France, Spain, Belgium), and Cotoneaster inte Each group of islands possesses its own peculiar species. Lotus ylaucus is common to Madeira and the Canaries, and L. aryyrodes to Madeira and tiie Azores. L. aroiaiius, a plant of Spain, Portugal, and ISorth-west Africa, and the only European ''^ Peclrosia, is found also in the Canaries. L. maroccanus Ball is endemic in Marocco. * Lotus Sahmauni Boiss. et Reut., judging from a specimen sent out by Messrs. Porta and Rigo under tliis name (No. 82, iter iii. hi.spanicum, 18'J1), shows a distinct approach to Pedru^ia in the character ci the style. 382 NOTES ON SPECIES OF LOTUS § PEDROSIA. Lotus glaucus Ait. This is quite the most common of the species, occurring both in Madeira and the Canaries, though it does not reach either the Azores or Cape Verd islands. The plant sent from the last-named group under this name is, I believe, quite distinct, and has been described under the name of L. Bollei by Dr. H. Christ in Engler's Bot. Jahrhiicher ix. 123 (1887). Generally a well-marked species, easily recognisable, but several slightly varying forms have been described as species. The typical plant is quite prostrate, forming a dense mat of entangled branches, with short peduncles rarely exceeding three-quarters of an inch in length, and stipules similar to the leaflets in size and shape. This is the common plant of the Madeira coast, and I cannot distinguish from it Pedrosia leptophylla, under which name Lowe describes the grand Canarian form of the species. It is true that of P. leptojihylla it is said " foliolis stipulisque subdifformibus," but I can find no other difi'erence, and a careful examination of Madeira specimens will show many instances in which the same character may be observed. Pedrosia tenella Lowe (Tenerife) differs by " its peculiar bristly or hispidulous pubescence spreading or refiexed on the branches and fringing the leaflets," but this character is variable, and at most it can only be considered as a slight variety or local form. P. neglecta Lowe (Madeira) differs considerably in habit, has stipules unlike the leaflets, and longer peduncles (one to three inches) ; but is probably only a very marked variety of L. (jlaucus, P. florida Lowe (Porto Santo) seems to be a mere local state of L. (jlaucus, and appears from a paragraph in Flora of Madeira, 178, to have been finally discarded as a species by its author. Lotus glaucus Ait. var. nov. angustifolius. Prostrate, much branched, the branches not interlacing. Leaves all distinctly stalked, the petioles mostly 1-2 lines long ; leaflets linear acute or narrowly obovate-cuneate, three or four times longer than broad ; stipules similar, but smaller, exceeding the petiole. A very striking plant when well marked, but a long series shows many intermediate forms connecting it with ordinary L. r/laiicus. Gran Cauaria : Caldera de Bandama, Ginamar, Las Palmas, Gando. Here also, I think, may be best placed a curious plant which I once found on coast rocks between S. Cruz and S. Andres, Tenerife. In habit and general appearance this variety bears much the same resemblance to the type that L. tenuis Kit. bears to L. corni- culatus L. Lotiis glaucus seems never to be found far from the sea. It occurs in Madeira and the adjoining islets, and in Tenerife, Gran Canaria, and Fuerteventura. Lotus salvagensis, n. sp. or n. var. — Biennial, procumbent, with numerous branched stems, clothed with short adpressed hairs, becoming bald below. Leaves very shortly petioled, leaflets and stipules dissimilar. Leaflets narrowly obovate, about three times as long as broad (not six to eight times, as in Pedrosia Paiva Lowe), subpetiolate, clothed with scattered adpressed hairs. Stipules ex- ceeding the petiole, unequal sided, generally markedly so, rather NOTES ON SPECIES OF LOTUS § PEDBOSIA. 383 acute, broader below, distinctly subpetiolate. Peduncles very short, hardly exceeding J in. in length, 1- to 3- or 4-flowered (in tlie specimens before me nearly all 2-flowered). Flowers yellow. Bract normally trifoliate. Calyx clothed with adpressed hairs, subbilabiate, teeth subulate, about as long as the tube. Style with a short but very distinct tooth. Stigma capitate. Pod about f in. long, straight, rather thick, more or less strangulate from abortion of seeds, which are about twelve to fifteen in number in the speci- mens before me. Salvages (Grand Piton) ; apparently common. Collected by Ogilvey Grant, Esq., iu May, 1895. Very distinct from Pedrosia Paha, judging from Lowe's de- scription and from the specimens (which are in very poor condition) at Kew. I should have referred these to ordinary L. glaucm. No doubt L. salvagemis comes also very near that species, if taken in an extended sense, but even so it seems to be sufficiently distinct to be kept apart. In the structure of the stipules it approaches Pedrosin nerjlecta Lowe, but diflers markedly iu the extremely short peduncles, a character in which it resembles P. Paivte, and which led Lowe (in the absence of flowers) to surmise that the last- mentioned form belonged to the group of which L. macranthus Lowe may be taken as the type. But I can see no valid ground for this suggestion. Lotus sessilifolius DC. DeCandoUe remarks that this species is allied to L. fjlaucus, but differs by its perennial habit, shrubby stem, longer and narrower leaves, larger and more numerous flowers, and cylindrical pods. I doubt whether any of these characters can be absolutely depended on except the perennial habit and somewhat shrubby stems. The leaves of L. ylaucus var. an5 >> a o H it a o . S 3 302 1^ cS o "3 03 3 i 3 o > ^2 2s g« ^ -S .£3 o o Hi o o o o T) "o o *; o o h5 a a CPn a o a 3 3 3 apL, O o O o 3 02 OQ 02 GQ Ph Bacteriastrum varians Laud. . xr xr Cerataulina Bergonii Per. r rr r Chcetoceros borealis Bail. r + r ,, commutatus CI. + r r + -f ,, comtrictm Gran . r ,, contortus Schiitt . -1- + + + ,, criojjJtilus Cast. r „ ciirvisetus CI. cc cc CC CC CC r c cc ,, dehilis CI. . + c + + + ,, decipiens CI. . + c + + + + c + ,, didymus Ehr. c r + + C + r r -f- ,, diadema Gran r + r ,, septentrionalis Oestr. r r ,, scolopendra CI. xr Coscinodiscus concinnus W. Sm. r r r r r r ,, excentricus Ehr. r !• r ,, radiatus Ehr. . r r r r Ditijluin BrightwelUi Grun. r r r Eucanipia zodiacus Ehr. . c r + + + c -t- ,, groenlandica CI. r Fragilaria striatula Grev. r Guinardia flaccida Per. . r r r r V r r Lauderia annulata CI. . rr Leptocylindrus danicus CI. r r r r Navicula memhranacea CI. r Rhizosolenia setigera Brightw. r rr + + ,, Shrubsolii CI. + r + + + + + + + Stolterfothii Per. rr + V ,, pungens CI. -f- + r -t- + Roperia teisellata Grun. r r Skeletonema costatum CI. cc Stephanopgxis Turris Ralfs. . + r + r c c + + + Thalassiosira Nordenskioldii CI. rr r ,, gravida CI. rr Thalassiothrix loiigissima CI. etGrun. rr OBSERVATIONS ON PLANT PLANKTON. 391 In December, on the west coast outside the Clyde sea-area, the characteristic diatoms were Coscinodiscm cuncinnns, Biddiilphia mobilieiifiis, Ditylum Brii/htwellii, while species of Chatoccros and Naricula were casually present. Both Cerathnn Tripos and C. Fusiis appeared sparingly in all the captures. Within the Clyde area, S/idetoneina became next abundant to Coscinodiscus, after it Biddul- phiii, and next IJIueluceros decipiens, while Ceratium Tripos and C. Fiisus were more plentiful than in the waters outside. Compared with these, other diatoms and plant organisms were of purely casual occurrence. These appeared more or less in every haul of the nets, and in fairly steady proportions, as cited. Not a single specimen of Bhizosolenia was obtained in December, while sometimes in August it was the predominant generic form, e.(j. in Kilbrennan Sound. At all seasons of the year, especially near the shore, a small proportion of the diatoms captured are dead, their cell-contents either disorganised or gone. This is particularly noticeable in such large forms as (.'oscinodiscus concinmis and Biddnlphia mobiliensis ; but it occurs frequently in other forms, such as Chatucerus di'cipiens, and, above ail, in Skeletonema costatum. I believe this phenomenon, which at first puzzled me greatly, to be due to the decline or loss of salinity of the water. My reasons for this belief are these : Such diatoms are mostly found at or near the surface and in the vicinity of land where a considerable mixture of fresh with salt water occurs. This may be seen in any of our western sea lochs, especially after rains, where a sheet of practically fresh water lies on the top very slowly mixing with the salt water. It is well known that seaweeds, in general, are extremely sensitive to varia- tions in the degree of salinity. My belief is strengthened by the following observation : In April, on ascending Loch Fyne, the nearer we came to the top the larger the quantity of dead diatoms were found. This was particularly noticeable in Slcelctonenui, which almost monopolised the surface ; and on tow-netting in the waters between Inveraray and Cairndhu at the head of the loch, where there was a thick sheet of fresh water on the surface, owing to recent heavy rains, it was impossible to find a living coll in the vast mass of Skeletonema. This observation was confirmed in Loch Etive in summer. This loch was full of Skeletonema, some at the surface, but most in from 3 to 5 fathoms. A large quantity of fresh water was entering the loch, and the diatoms at the surface were in large proportion dead, while those in the lower layers were living. The observation is the more noteworthy, as I am led by other reasons to think this diatom mostly abounds in waters of a fairly low degree of salinity, and I have elsewhere taken the low degree of salinity of this loch in August as possibly accounting for the presence of Skeletonema in it at that season. However, this last idea is a purely speculative one, and does not in any way affect my general contention that the great numbers of dead diatoms in the sea are to be accounted for by the addition of fresh waters. Diatoms as Food of Marine Animals. — When Ave reflect that the whole bulk of animal life ui the ocean must be dependent on 392 OBSERVATIONS ON PLANT PLANKTON. the vegetation of the ocean, it will be at once apparent that the small fringe of visible vegetation on the shallow bottoms round coasts cannot in the least degree suffice for the sustenance of the teeming animal life, which not only extends over the surface, but ranges into the depths. This rule must be played almost entirely by the minute plant organisms, diatoms, Protococcacea, Oscillator iecu, Peridiniea, Coccospheres, Rhabdospheres, &c., which inhabit the surface layers down to 80 to 50 fathoms. Such organisms have been recorded from polar, temperate, and equatorial seas, sometimes in vast shoals, discolouring the water, but always found to be pre- sent when suitable apparatus is used for their capture. Their economic importance to the fisheries is therefore of a direct and vital character. We know that the stomachs of HolothuruE, Asci- dians, Salp(F ; oysters, scallops, whelks, and other molluscs ; crabs, lobsters, and other large Crustacea, and even full grown fishes, have formed the happy hunting-grounds of diatomists in search of material ; but direct evidence has been wanting of the use of diatoms as a matter of daily food by animals in the sea. Observing that the excreta of copepoda and other small Crustacea, largely fed upon by fishes, were in many cases tinged with a faint colour like diatomine, I subjected them in many cases to a minute microscopic analysis, with the result that nearly the whole could be resolved into minute fragments of diatom frustules and their chromatophores. In many cases, it was surprising to note that the chromatophores had passed through, almost unchanged in shape, and even retaining faintly their colour. It was, in fact, often possible, from the characteristic shapes of the chromatophores, and the minute finely sculptured fragments of frustules, to recognize them as belonging to diatoms found in the same capture. In a few cases it was possible to detect a whole unbroken diatom cell within the crusta- cean, but almost invariably the diatoms were reduced to fine fragments. Coscinodiscus and Skeletonema were the usual forms found, and these were the prevalent forms in the sea when my observations were being made. It appears, then, to be clear that the animals which are them- selves an important constituent of the food of fishes live in turn largely on diatoms. It has always seemed to me very higlily probable that young fishes eat diatoms directly ; and, in order to put this to the test, Dr. Wemyss Fulton sent me some young sand- eels, taken in tow-net, fifteen miles off Aberdeen, on 16th May, 1894; some young flat-fish (? plaice), taken ofl" Montrose, 21st May, 1894 ; and some very small clupeoid fishes, taken SOth March, 1889. They were preserved in spirit. After burning a few of each in platinum crucibles, the ash was examined, and diatoms discovered in every case. Four dift'erent genera, viz. Skeletonema, Eacampia, Melosira, and Chaitoceros, were found in the sand-eels ; Skeletonema and Nitzschia in the flat-fish (in both cases Skeletonema was pre- dominant); and C'oscmo(/i.scMs (abundant) and Melosira (very rare) in the young clupeoids. In each case, complete valves (in Skeleto- nema, chains of several cells) were found, which appears to indicate that they were eaten directly by the fish themselves, and not within OBSERVATIONS ON PLANT PLANKTON. 393 the bodies of small Crustacea ; in this latter case, they would have been broken up into minute fragments.* During summer, I made a long series of attempts to discover whether the species of CeratUun, then so abundant in the sea, furnished a constituent of the food of small Crustacea, but without result. In the first place, Cerathim could hardly be traced so easily as diatoms, and the matter is one of difficulty. Direct observations also yielded no result. I made an estimate of the relative abun- dance of diatoms, of species of Ceratium, and of animal life in all the captures, and I found a certain constancy in the proportions in the great majority of cases. When there were plenty of diatoms, there were alivays plenty of Crustacea; when Ceratium predominated, and diatoms were scarce, there was little animal life. (In Loch Fyne, in July, I made two almost pure captures of Ceratium Tripos — merely one or two diatoms and copepoda mixed with it.) These facts, however, are merely suggestive. There is one more suggestion I should like to make. The spines of Ceratium may be a protection against being eaten. I could not fail to remark that there were no traces of spiny diatoms, such as the species of Clmtoceros, having been eaten by small Crustacea, though they were abundant in the sea. Against these negative observations, however, may be placed the fact that I found Chcetoeeros in the young sand-eels. Though one can suggest other uses for the spines and sharp projections of diatoms, especially the hollow spines of Chatoceros, it may yet be that they are a defence against Crustacea, &c., as well, and this may be equally true of Ceratium. At all events, I failed to find evidence of Ceratiion being eaten, though it was diligently sought for ; and repeated observations and estimates appeared to point to there being a balance between the quantities of diatoms and animals, irrespective of Ceratium. Reproduction of Diatoms. — In the ordinary process of repro- duction, a diatom-cell divides into two cells, which resemble the parent; and, in most cases, tlie successive generations remain attached to each other in chains of individuals. Since the division takes place at the girdle where one-half of the wall overlaps the other, and each succeeding generation is similarly overlapped, and since (unless, perhaps, in a free state) there is no subsequent superficial growth, each succeeding generation is diminished in size * The late Dr. E. Brown in a paper " On the Nature of the Discolouration of the Arctic Seas " (J'rans. Hot. Soc. Edin., vol. ix. p. 2i4, 1868), was the first, so far as I know, to point out that this discolouration is due to the presence of large masses of diatoms. He found these diatoms within the Pteropoda, Medusce, and Entomostraca that compose the "whale's food." With reference to the association of diatoms with the food of fishes, Prof. M'Intosh refers me to the Seventh Annual Report of the Board, in which he anticipates my observations. At p. 272 (part iii.) he notes the occurrence of Appendicularians with lihizo-sulenia. He says, " The stomachs of these were distended by chlorophyll granules, the same appearing in the fa>cal pellets, both in the intestine and when discharged." I regret that his observation was un- known to me, and that I therefore did not cite it in my paper in Proc. Roy. Soc. Edin. The main point, however, is the full and complete establishment of the truth ; and, since my observations were made in entire ignorance of his, this confirmation is all the more satisfactory. 894 OBSERVATIONS ON PLANT PLANKTON. by the thickness of the girdle membrane. When a minimum size is reached, diatoms become re-established at the maximum by the formation (in various ways) of auxospores. Mr. Comber has called attention (Jour. Roij. Micr. Sue, October, 189G) to the formation in certain diatoms of " Endocysts " resulting in the production of a dimorphic form, and Prof. Cleve has recorded the presence of a specimen of lUddulphia aiirita within another, — the internal one being considerably smaller, and having no spines (Bihang till K. Svenska Vet. Akad. Handlinf/ar, Bd. i., No. 13). Besides these modes of reproduction, nothing was certainly known of any mode of multiplication until the observations I was enabled to make in spring and summer on board the ' Garland.' The minute botanical details and considerations have been discussed at length in a paper published, by permission of the Board, in the Proceedings of the Royal Societg of Edinhurgh (vol. xxi. p. 207, plates i.-iii.). It was discovered in Biddulphia mobiliensis that the cell-contents contract and round themselves oS, this more or less spherical body proceeding to secrete a membrane of approximately the same shape as the parent, but without the characteristic external spines, &c. This body is apparently of the same character as that recorded by Pi'of. Cleve in B. miiita (of which I was ignorant at the time). During summer, I found these internal bodies free in the water in large numbers, and in a state of active division, none of them having developed the characteristic external spines of the parent form. The parent form was almost wholly absent. In December, again, the parent form (with spines) was abundant, but none of the summer forms. Presumably these had grown into mature Biddul- phia muhiliensis, either directly, as is most likely, or after some other development. The production of this internal form, so far as I have seen, in Biddulphia, is always a case of rejuvenescence of the cell, the whole of the cell-contents of the parent being used up in the formation of one new cell, which, when free, increases its kind by division. I have observed similar rounding off in the cell- contents of Dittjlum Biightwellii, and very probably it goes through a similar life-history. In Ooscinodiscus concinnus, I have also found a young form within the parent, this time exactly resembling it in all essential characters. In this genus also, therefore, we have the production of a new individual by the rejuvenescence of the cell. That this often happens in spring I had abundant evidence ; but, what is more interesting, I have found in this species two diatoms within the parent, showing that the protoplasm must have divided to form them. In Loch Fyne I found other specimens of C. concinnus, of which the protoplasm had divided into four, eight, and sixteen rounded-off portions (produced, to judge by their positions, &c., by successive divisions into two) ; and free in the water at the same time, packets of eight and of sixteen young Cuscinodiscus concinnus, of the same size as the rounded portions of protoplasm. The con- clusion was inevitable that the packets of eight and of sixteen were produced from the rounded-off portions, having regard to the occurrence of single forms and pairs as described above. The MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. 395 membfanes of the young individuals were either not silicified, or were imperfectly silicified, as proved by burning ; and they were therefore capable of growth, and of attaining the full dimensions of Coscinodiscus concinnus, without the intervention of auxospores. Both in spring and summer, I observed in several species of ChiBtoceros a series of divisions of the cell-contents, obviously similar to the divisions in Coscinodiscus, and doubtless preliminary to the formation of reproductive bodies. In C. borealis this sub-division of the contents is carried to four, eight, and sixteen; in C. cun-isetus to four and eight; and in C. constrictus to four. Instances of higher numbers in the latter two species may and probably do occur, but they have escaped me. I have witnessed the actual processes of division up to four ; but the farther sub-divisions into eight and into sixteen are known to me only from finding instances of them as accomplished facts. What the fate of these bodies may be I do not yet know, but I hazard the view that they resemble the corre- sponding bodies in Coscinodiscus in their life-history. Having obtained a supply of sea-water, I am endeavouring to cultivate these organisms during the winter in two large tanks, and, if possible, to secure a continuous series of observations. There are enormous difficulties in cultivating such organisms in London, but so far I have a prospect of success. There are numerous questions of both scientific and economic importance to be settled in connection with the study of marine vegetation. That little is known maybe inferred from the fact that it was possible to make so many novel observations within so short a time. I would venture to recommend to the Board that a survey of the conditions be made farther out at sea, that we may know how far these banks of diatoms, Peridiniea, &c., extend seawards, especially in the early months of the year and in summer, or how far they may be coastal in their occurrence. MONOGRAPH of the BRITISH SPECIES of EUPHRASIA. Prefaced by an Epitome of Pbof. Wettstein's Views on the Development AND Distribution of the European Species. By Frederick Townsend, M.A., F.L.S. (Continueii from p. 336.) Part II. Description and Distribution of Species, &c. , List of Native Species and of Hybrids. PARVIFLORiE. 1. [Euphrasia stricta Host.] 6. E. occidevtalis Weitsi. 2. E. borealis Towns. 7. [E. latifolia Pursh.] 3. E.brevipila Burn. eiGrem. 8. E. Eouhwnsis Towns. 4. E.nemorosa H. Mart. 9. K. (jracilis Fries. 5. E. curta Fries. 10. E. Scotica Wettst. 396 monograph of the british species of euphrasia. Grandiflor^. 11. E. Rostkoviana Hayne. 12. E. camj)estris Jord. Angustifoli^. 13. E. Salisbiirgensis Funk. Hybrids. E. Rostkoviana x nemorosa E. gland id if/ era Wetts. E. Rostkoviana x brevipila E. notata Towns. E. gracilis x brevipila E. difformis Towns. E. occidentalis x brevipila E. pratiuscnla Towns. E. brevipila x Scotica E. veniista Towns. E. Scotica X gracilis E. electa Towns. Clavis analytica.''' [Bractese saltern in margine basin versus pilis glanduliferis 1 \ obsitfe, saepe tota3 pilis glanduliferis plus minus obtectae 2 (Bracteas nunquam pilis glanduliferis obsitfe ... 6 pf Corolla 10-15 mm longa, fine anthesis tubo elongato . 8 I Corolla 4-10 mm longa, fine anthesis tubo nou elongato . 4 'Kami infra medium caulis abeuntes. Folia caulina acuta, densiuscula, pilis glanduliferis longis obtecta. Floret jjj ab Julio ad Octobrem . . . E. Rostkoviana Hayne. 1 Rami infra et supra medium caulis abeuntes. Folia caulina acuta, densiuscula. Pili glanduliferi breviusculi. \ Floret ab Juni usque ad Octobrem . (E. campestris Jord.) Bracte^e non sensim in basin attenuatas .... 5 Bracteae sensim in basin cuneato-attenuatte, setis robustis obsitte bine inde eglandulosae. Species arctica fere circumpolaris ..... {E. latifolia Pursh.) Caulis plerumque infra medium ramosus 5-35 cm altus. Spica mox valde elongata. Folia caulina obtusa vel acuta. Bracteae ovatae aut basi breviter cuneatae, denti- bus cuspidatis vel aristatis. Corolla 5-10 mm longa violascens vel albida. Capsula cuneato-obovata, calycem aequans vel superans . . E. brevipila Burn, et Grem. Caulis infra medium ramosus. Spica non elongata densa. Corolla 4-6 mm longa albida vel cferulea ? Bractese dense imbricatae acutas, dentibus acutis. Capsula elliptica calycem aequans vel excedens . . E. occidentalis Wettst. rFoliorum caulinorum superiorum lanceolata vel lanceolato- ovata longitudo latitudinem (exclusis dentibus) in minimo duplo superat plerumque valde superat. Corolla 6-8 mm longa alba, labio superiore caerulesceute vel violascente rarius totae lilacinae, Capsulje maturae margine glabrae vel pilis sparsis inflexis obsitae . E. Salisburgensis Funck. Foliorum caulinorum superiorum longitudo latitudinem (exclusis dentibus) in maximo duplo superans, plerumque brevior. Capsulae maturae margine pilis strictis erectis obsitae .......... 7 * The dimensions throughout are metrical. 6 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. 397 /Corolla dorso 10-15 mm fine anthesis plerumque elongata E. Kernerl Wettst. „J Corolla 5-10 mm, fine anthesis non elongata Confer E. brevipila v. suhglahra. Corolla dorso 2-10 mm longa fine anthesis nunquam elon- gata . . . . . . . . . .8 P (Corolla in speciminibus bene evolutis 7-10 mm longa . 9 (Corolla in speciminibus bene evolutis 2-7 mm. longa . 10 Planta 5-20 cm. alta. Europeam boreali-occidentalem jn- colans ; foliis caulinis superioribus obtusiusculis, denti- bus obtusiusculis . . . . . E. horeolia Towns. Q Plantae 5-75 cm. altae, foliis caulinis superioribus acutis, acute dentatis, in parte inferiore ramosus ; bracte® ovatae vel obovato cuneatfe. Folia glabra vel in margine setu- lis papillisve minimis. Calyx fructifer non valde accretus [E. stricta Host.) [Folia et bracteae glabra . . . . . . .11 10 j Folia et bractefe tota vel saltem in margine et in nervis i paginae inferiore setulosa . . . . . .12 ^Caulis firmus, planta oca. 5-40 cm alta, bracteis distanti- bus, plerumque ramosissima planitiem vel montes non altos incolans ; bracteaB dentibus acutis patentes . \l{ E. nemorosa H.Msivi. Caulis tenuis, filiformis planta circa 3-20 cm alta, ramis paucis. Bracte89 erectfe, dentibus obtusiusculis, vel V acutis, nitidffi ...... E. (jiacHis Fries. [Folia setis albidis strictis dense obsita itaque griseo-viridia 13 12 j Folia setis minimis margine et in nervis paginae inferioris ( obsita, glabra videntur . . . . . .14 i Folia caulina obtusa. Bractefe latae basi cuneatfe setis longiusculis sparsis obsitae. Planta arctica, fere circum- polaris ...... [E. latifolia Pursh.) Folia caulina superiora acuta. Bracteae basi rotundatas, setis brevibus dense obsitae. Planta Europae mediae et borealis ....... E. curta Fries. IPlantae Europae borealis et mediae. Folia caulina superiora plerumque acuta . . . (Confer E. occidentalis ylahra). Folia caulina obtusa. Calyx capsula evidente brevior. Planta Europae borealis, aestate florens E. Eoulaensis Towns. Planta Scotica, gracilis simplex vel parce ramosa. Capsula calycem aequans vel excedens . . . E. Scotica Wettst. Planta Europae mediae crassus rarius tenuis plerumque in parte inferiore usque ad medium caulis ramosus. Conf. , E. curta var. glabrescens. I would preface the descriptive portion of this Monograph by stating that I have seen and determined all the specimens for which localities are given. The critical character of the species rendered this advisable. I regret that I have not had time or opportunity to consult more herbaria so as to have given more localities and rendered the knowledge of the distribution of the species more 14 15 398 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. complete. There can be no doubt that it will be many years before this knowledge will be obtained. My best thanks are due to those botanists who have assisted me in communicating specimens ; they are especially due to W. H. Beeby, Esq. ; also to Messrs. Ar. Bennett, J. Britten, N. Colgan, H. and J. Groves, S. M. Macvicar, W. F. Marshall, W. S. Millar, E. Lloyd Praeger, W. H. Purchas, E. S. Salmon, and Prof. Wett- stein. I have been assisted so largely by Prof. Wettstein that I can hardly sufficiently express my thanks and indebtedness to him. He has seen most if not all doubtful plants, and given me his opinion on them. He has given me fall permission to make copies of the schemes and drawings of leaves, bracts, &c. in his Mono- graph, a permission which I have taken full advantage of. His diagnoses of species are so excellent that I have mostly adopted them. Description of Species. Euphrasia, Linn. Gen. n. 741 pro parte. — Wettstein, Monog. p. 9 (1896).— Benth. et Hook. Gen. PI. vol. ii. pars ii. p. 976 (1876). Sectio I. Encuphrasia Wetts. Mon. p. 68. Folia indivisa, dentibus utrinque acutis vel obtusis 1-10. Antheras pilosfe. — Species Europte, insularum Azoricarum, Asife extratropicte, Americ^e septentrionalis, Australise et Nov® Zelaudife. Subsectio I. SemicalcaratiB Benth. in DC. Prodrom. x. p. 552 (1846). Wettst. Mon. p. 68. Species hemisphterii borealis, sem- per aunupe, antherte mucronatfe, duorum staminum posticorum breviorum loculus alter semper longius calcaratus. § 1. Parviflor^e Wettst. Mon. p. 69. Foliorum longitude latitudinem in maxirao duplo siiperans. Capsule margiue semper erecto ciliatae. Corolla? tubus fine anthesis non elongatus, itaque coroUse omnes longitudine iequali. 1. Euphrasia stricta* Host, Flor. Aust. ii. p. 185 (1831).— Wettst. Mon. p. 93. Caulis erectus, rarius simplex, plerumque in parte inferiore ramosus, 5-75 cm altus, rubescens vel fuscescens, pilis crispis re- versis eglandulosis pubescens, in parte inferiore foliis mox deciduis tempore anthesis denudatus, ramis non numerosis ascendentibus suboppositis, folia caulina iufima opposita cuneata, obtusiuscula utrinque dentibus 1-2 obtusis, media et superiora opposita ovata vel ovato-lanceolata in parte media latissima lontjUudine latitndLnem duplo supeianie, acuta, utrinque dentibus aristatis 3-5. Bractete alternantes, latitudine folia caulina superantes, in triente inferiore latissimaB, ocatce, basi breviter cuneatcB, acutissimcB, dentibus loiuje * I enter here the description of this species, though I cannot ascertain that it is a native of Great Britain. It is given by Prof. Wettstein, as on my authority, as occurring in " Surrey : Downs (Ig. ? H. Townsend,") Mon. p. 103 ; but I have never collected specimens in England nor have I seen native ones. I have had correspondence with the Professor on the subject, but he is unable to tell me how the error crept in. MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. 399 ai-iHtatis vel acutis utrinque 4-7. Folia omnia viridia, in specimini- bus siccis interdum nigricantia subtus plana nitida vel in speci- minibus locorum aridorum plicato-striata, gJaJierrma, rarius in pagina superiore et in margine pilis brevissimis aspera. Spica initio cunden.sata mox valde elovgata, frucfcifera saspe in parte inferiore calyces fructiferos solum gerens. Flores subsessiles. Calyx tjlabcr vel setulis niinutis obsitus, fructifer non accretus. Corolla 6-10 mtn. longa, labio superiore bilobo, lobis denticulatis, rarius bilobis, labio inferiore trilobo, lobis emarginatis. Corolla plerumque pallide violacea, macula flava in labio inferiore et striis Cceruleis vel pur- pureis notata, rarius cterulea vel albida. Capsula cuneato-obovata, angusta, truncata vel subemarginata, cahjcis denies non superans, margine longe ciliata cteterum pilosa vel glabrata. Syn. E. officinalis B, montana /5 cucullata Fries Novit. Flor. Novit. Flor. Suec. ed. 2, p. 198 (1828) ex parte. — E. nenioiosa B. intermedia, a. vulgaris et /3 alpestris Soyer Willemet sur VEuphrasie offic. et les especes vois. p. 28 (Mem. d. 1. soc. roy. d. so. de Nancy, 1833-34).— £". officinalis Hayne, Arzneigew. ix. t. 8 (1823).— /'A officinalis /3. resp. b. nenwrosa Koch Synop. Flor. Germ, et Helv. ed. i. p. 545 (1837). — E. officinalis J, nemorosa Eeich. Icon. Fl. Germ, et Helv. xx. p. 58 (1862). — E. ericetorum Jord. in Reut. Compt. rend. d. 1. soc. Haller. 1854-56. — E. condensata Jord. Pug. plant, nov. p. 135. — E. stricta A. Kerner, Schedje ad Fl. exsicc. Aust.-Hmig. i. p. 41 (1881). Exsicc. Kern. Fl. exsicc. Austro-Hung. No. 147. — Schultz, Herb. norm. nov. ser. Cent. i. No. 113 (as E. ericetorum). — Billot, Flor. Gall, et Germ. Excurs. No. 62 (as E. nemorosa). Tab. 374. Tab. 378, fig. 135-146. Hayne, Arzneigew. ix. tab. 8 (1823). — Reich. Icon. Flor. Germ, et Helv. xx. tab. mdccxxxi. — Wettst. Mon. Taf. iii, fig. 135-146, Taf. vii, fig. 5, 6. Fl. June-Get. Distribution. Mid Europe; Spain; France; Belgium; Switzer- land ; Germany ; South Sweden and Norway ; Austria ; Upper Italy ; Northern Balkan peninsula ; West and South Russia. Not ascending into the alpine region. The distribution of E. stricta in Europe would lead us to expect its occurrence in Great Britain though it has not yet been detected. It is a variable species and many varieties have been described and named by various botanists. Prof. Wettstein observes that in damp and cool localities the plant is smaller, has broader flatter and more shortly toothed leaves, is more branched ; that in drier locali- ties the plant is taller, sometimes less and sometimes more branched, and usually the leaves are narrower, plicate beneath and with more aristate teeth. From E. brevipila it may be distinguished by the absence of glandular hairs ; from E. Salisburgensis by its capsule being furnished with long erect hairs ; from E. nemorosa by the more aristate character of the teeth of the leaves and bracts, its less branched stem, its entire or subemargiuate capsule, exceeded by the calyx teeth and by its suberect and straight (not subarcuate or recurved) bracts. Three names which have been applied to this species re(][uire 400 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. special notice, viz. E. stricta Host, E. ericetonim Jord., and E. nemorosa H. Mart. Jordan's name ericetonim, which is undoubtedly Host's E. stricta, must give way on account of the priority of the latter. E. nemorosa Host is described as a species further on. Prof. Wettstein's opinion that a parallel earlier flowering form to E. stricta, having the same relation to it as E. montana to E. Rostkoviana, exists, has been confirmed by the observations of Dr. S. Murbeck, and he has named the plant E. Suecica Murb. et Wettst. 2. Euphrasia borealis Wettst. Mon. p. 108. — E. Rostkoviana v. borealis Towns. Lond. Cat. ed. 9. Caulis crassus, erectus, 5-20 cm, pilis albidis crispulis reversis pubescens, simplex, vel infra medium ramosus, ramis erecto- patentibus rarius iterum ramosis. Folia infima opposita cuneato- obovata vel elliptica, obtusa, utrinque dentibus 1-2 obtusis, folia media et superiora subopposita vel alternantia, obtusa, ovata, dentibus utrinque 3-5 obtusis, vel dentibus infimis acutiusculis. BractefB alternantes vel suboppositae, late ovatte utrinque 3-5-den- tatfe, dentibus acutis vel breviter aristatis. Folia et bracte® non- nuuquam fere orbicularia et tunc dentibus obtusis et glabrescentia. Folia omnia erecto-pateutia, nitida, subtus striata, in speciminibus siccatis frequenter griseo-viridia, subglabra, plerumque in pagina superiore in margine et in pagina inferiore iu nervis setis albidis strictis hirsuta, vel tota setosa. Spica initio condensata non valde elongata. Flores subsessiles. Calyx dentibus triangulari-lanceo- latis acuminatis subaristatis, indumento ei foliorum simili, fructifer modice vel valde accretus, dentibus triaugulnribus subpatentibus. Corolla 6-8 mm longa, labio superiore bilobo lobis reflexis emargi- natis vel denticulatis, labio inferiore trilobo lobis emarginatis. Corolla plus minusve striis violaceis notata et macula flava iu labio inferiore et iu fauce picta, alba vel labio inferiore alba et labio superiore pallide violacea vel tota violacea. Capsula elliptica aut oblonga basis versus paulum attenuata, truncata, emarginata, calycem aequaus, margine ciliata cjeterum glabriuscula, Syn. E. Rostkoviana v. borealis Towns. Lond. Cat. ed. 9. Tab. 374. Tab. 378, fig. 147-153. Wettst. Mon. Taf. iii. fig. 147-153, Taf. xi. fig. 7. Fl. June-Aug. DisTRiB. England ; Scotland ; Ireland ; Faroe Islands, "Oestero" bei Eide ; Simmons (comm. Wettst.), Suderoe Gratzl ; Prof. A. Kerner (Wettst. Mon.). DisTRiB. IN England and Wales : Cumberland, Borrowdale (1884). Hants, near Heme (1895); E. F. Linton. Freshwater, Isle of Wight (1883). Hereford, near Downton on the rock (1853) ; W. tl. Furchas. Warwick, Whichford and Long Compton. Westmoreland, Ulles water (1886) ; C. Bailey. DisTRiB. IN Scotland : Aberdeen, Braemar (1890). Argyle, Oban (1881). Shiel Bridge (1896), Caithness, W. Leastne ; Klaij. Inverness, Foyers (1881). Inverailort (1896). Eilean Shona (1896). Shetland, Sutton Voe ; North Voe ; Sand Voe ; North- MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. 401 maveii (1891) ; Shetlaud mainland (1887) ; W. H. Beeby. Suther- land, Banks of Naver nr. Betfcyhill (1889) ; W. F. Marshall. DisTRiB. IN Ireland, Galway, Connemara (1853) ; F. Kirk. Meath, Laytown (1896) ; -ft. Lloyd Praeyer. Pascual. This species is found in short uncultivated grass pastures, especially on the coast of Scotland, but it occurs also far inland, ascending over 1000 ft. See remarks under E. brevipila as to the borders of the areas of this and E. borealis meeting in the British Isles. Since this Monograph was completed Prof. Wettstein has written to me respecting the varied forms of E. borealis and E. brevipila of which I communicated a series of specimens. I had doubts whether many glabrous forms which have been referred to E. borealis should not be looked upon as glabrous forms of E. brevi- pila, or that there are glandular forms of E. borealis and that we have only one species, which was originally my opinion some years ago. Prof. Wettstein writes that he has never as yet seen an eglandular form of E. brevijiila and this fact mainly disposes him to believe that we have two species and that hybrids occur between them. For the present I assume that Professor Wettstein is correct and that we have two distinct species, and that hybrids do occur between them, but I am convinced that forms which have been referred to E. borealis do represent an eylandular form of E. brevipila, which is not unfrequent in Scotland. Future observation may possibly determine that E. borealis is an eglandular form of E. brevipila which has a separate area, and a more northern exten- sion than the parent form, and that this eglandular form is con- stant within this area except on its southern border. 3. Euphrasia brevipila Burnat et Gremli, ex Towns, in Journ. Bot. 1884, p. 1G7. — Wettst. Mon. p. 109. Cauhs erectus, rarius simplex, plerumque infra medium ramosus, 5-35 cm altus rubescens vel fucescens, pilis crispis reversis eglandu- losis pubescens, in parte inferiore foliis mox deciduis tempore an- thesis denudatus, ramis erectis vel erecto-patentibus suboppositis rarius iterum ramosis. Folia caulina infima opposita, cuneata, obtusiuscula utriuque dentibus 1-3 obtusis, media et superiora sub- opposita, ovata vel ovato-lauceolata, circiter in parte media latis- sima longitudine latitadinem diiplo superante, acuta, iitriuque dentibus aristatis 3-5. Bractefe alternantes vel subopposit.-e, latitudine folia caulina superantes, eis breviores, in triente inferiore latissimte, ovata:, basi breviter caneatce, dentibus aristatis vel acuminatis, utrinqud 4-7. Folia omnia viridia, in speciminibus siccatis plerumque griseo-viridia, subtus plana nitida vol plicato-striata, in pagina superiore et inferiore pilis ylandxdij'eris brevibus rectis, iinpriuiis in nereis et in maryine, saltern basin versus, obsita ; cseterum glabra vel setis strictis plus minusve densis obsita. Spica initio con- deusata, mox valde elongata ; flores subsessiles. Calyx indumenta ei foliorum simili, fructifer non vel modice accretus. Corolla G-10 mm longa, labio superiore bilobo, lobis denticnlatis, rarius Journal of Botanv. — Vol. 35. [Oct. 1897. j 2 d 402 MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. hilohis, labio inferiore trilobo, lobis emarginatis. Corolla pallide violacea vel cterulea vel alba, macula flava in labio iuferiore et striis casruleis et purpureis uotata. Capsula cuneato-obovata, angusta, truncata vel subemarginata, cah/cem cBquans vel superans manjine huge ciliatu, cteterum pilosa vel glabra. Some of our native plants differ considerably from tbe con- tinental ones. Prof. Wettstein's description, which I give, is admirable for the latter so I have not altered it, but I would note the following differences in some of the English plants : — Folia caulina . . . ovata vel ovato-oblonga . . . longitudine lati- tudinem non multo superante, obtusa utrinque dentibus obtusis 3-5 vel dentibus superioribus acutis. . . . Bractete .... latitudine folia caulina paulo superantes . . . , ovatfe, superiores basi breviter cuueatfe, dentibus cuspidatis vel breviter aristatis .... folia omnia subpatentes vel arcuato-recurvfe . . . Corolla . . . labio superiore bilobo, lobis emarginatis. . . . Corolla pallide violacea vel albida vel labio superiore pallide violacea et labio inferiore alba, striis purpureis notata, mucula lutea in labio inferiore, fauce luteo. I have drawn figures of some of the leaves and bracts of a form which is frequent in Scotland. Forms are also frequent in which the lower leaves are longer in proportion to their width than those I have figured, so as to merit the term ovate-ohhuKj, but I have never seen specimens to which ovate-lanceolate would be applicable. The teeth of tbe leaves and bracts of the continental form are much narrower and with much longer arista. Syn. E. ojficinaJis B. montana E. Fries Novit. fl. Suec. Ed. ii. p. 198 (1828) ex parte. — E. officinalis var. montana Fries Summa veg. Scand. I. p. 19 (1816). — E. officinalis A Plati/iihijlhe y. montana Reich. Icon. Flor. Germ, et Helv. xx. p. 58 (1862). — E. pan-ijlora Wettst. in Engler u. Prautl Nat. Pflanzenfam. iv. T. Abt. 3 b. S. 101 (1893). — i\ hreeipila Wettst. in Oesterr. hot. Zeitschr. (1894), S. 92. Exsicc. Fries Herb. norm. ix. n. 17. Tab. 374. Tab. 378, fig. 154-162, 163, 164, 165. Reich. Icon. Germ, et Helv. xx. tab. mddxxxiii. fig. I. et fig. 1 et 2. — Taf. iv. fig. 154-161, Taf. vh. fig. 8 (Wettst. Mon.). Fl. June-August. Distribution. — 1. Alpes Maritimes to Carinthia ; Switzerland, Apeninnes ; 2. Gali9ia ; Bukowina ; N. Hungary ; Carpathians ; East and West Prussia ; West Russia ; Finland ; Sweden ; Nor- way ; Denmark ; Great Britain ; Ireland. DisTRiB. in England and Wales : Hants, Ventuor, Isle of Wight (1879). Warwick, Honington (1896-7). Distrib. in Scotland : Aberdeen, Braemar (1890). Argyle, Oban (1881) ; Shiel Bridge (1896) ; near Corran (1896) ; Bender- loch, Oban (1885) ; C. Bailei/ (J. Britten). Trossachs, K. Richter ; H. Richter (Wettst. Mon.). 'Tigh-na-Bruach (1884) ; W. Matthews. Caithness, abundant and with very large flowers in pastures by the main road west of Thursoe (1897). Inverness, Foyers (1881) ; Ness Side (1892) ; Inverailort (1896). Kiucraig (1891) ; A. Somer- ville (J. Britten). Perth, Ben Lui (1881) ; G. Nicholson. Ross, MONOGRAPH OF THE BRITISH SPECIES OF EUPHRASIA. 403 Kinloch Ewe ; E. S. Salmon. Poolewe, 1897, where the eglandular form occurs in abundance. Sutherland, Durness (1881) ; TF, F. Marshall. Bettyhill (1897). Distrib. in Ireland : Cavan, Mount Nugent (189G) ; R. L. Praetjer. Galway, Clonbrock (1896) ; R. L. Praei/er. Koundstone (1852) ; I). Oliver. Louth, Togher (1896) ; Lurgan Green (1896) ; R. L. Praei/er. Meath, Laytowu (1896); R. L. Prae. Hooker has an interesting account of the history of this plant, in the course of which he points out that, "though so long known under culti- vation, [it] has only within comparatively few years been collected in a native state" — first by Mr. T. Watters (misprinted "Walters" NOTE ON PRIMULA SINENSIS. 427 throughout the article in Bot. Mag.) in 1879, from whom Hance received a specimen which is now in the National Herbarium, and later by Dr. Henry and the Abbe Delavay. Sir Joseph's summary of the earlier history of the plant in cultivation in this country is interesting and fairly complete, but we have in the British Museum some authentic material bearing on the subject, to which it may be well to call attention. The drawing by which Primula sinensis was first made known was one of those sent from China by Mr. John Reeves in 1819. The history of this valuable collection of drawings, which is now in the Botanical Department of the British Museum, with such information as to Reeves as I was able to obtain, was given in this Journal for 1894 (pp. 298, 298) : the following extract from the description accompanying the plate of P. sinensis in Lindley's Collectanea (t. 7 ; 1821) adds a little to what was there printed : — "It was determined by the [Horticultural] Society that a person should be employed in making drawings of plants in the countries where they grow. For several reasons China was selected for a beginning ; and particularly as being the residence of John Reeves, Esq., a corresponding and very active member of the Society, under whose immediate superintendence the draughtsman could be placed. By the direction of this gentleman, a considerable number of drawings have already been sent to England, and many of the plants they represent introduced. Among those which were received in the year 1819 was a drawing of what appeared to be a very handsome gigantic species of Primula, accompanied by dried specimens which confirmed the general accuracy of the figure. The attention of the Society was so strongly attracted by its beauty, that it was im- mediately ordered to be sent home. Seeds and a plant were accordingly procured at Canton by Mr. Reeves ; but the latter unfortunately perished during its passage, and the seeds, of which there was an abundance, did not vegetate. Captain Reeves has, however, been subsequently more fortunate ; having succeeded in bringing a plant over alive, which he presented to his relation Thomas Palmer, Esq., of Bromley, Kent A superb drawing has been made from the plant for the Horticultural Society by Mr. Hooker,* of which the Council has most liberally allowed us to avail ourselves, with the approbation of Mr. Palmer." It would appear that the drawings sent home by Reeves were his personal property : none are now to be found at the Horti- cultural Society, t and there can be little doubt that the figure of P. si7iensis in the Museum is that referred to in the above extract, as it bears at its foot a note in Lindley's hand : — " specimen at Hort. Soc." In the Banksian Herbarium there is a specimen sent to Brown by Reeves apparently a year earlier than the drawing referred to, as it is written up by Brown, " China, Mr. Reeves, 1818." * William Hooker was artist to the Horticultural Society (see Journ. Bot, 1886, 51) ; the details of the plate of Priviula in Collectanea are among the large number of the original drawings for that work lately acquired by the Botanical Department. t See Journ. Bot. 1894, 298. 428 DECADES PLANTAKUM NOVARUM AUSTRO -AFRICAN ABUM. A note may be added on the nomenclature of the plant. Mr. Hemsley (in Joimi. Linn. Soc. xxvi. 43, copied without acknow- ledgment by Mr. A. W. Sutton in Jouni. Royal Hart. Soc. xiii. 100) says, " The names sinensis Sabine and prceidtens Ker, were published in the same year, and the latter probably earlier in the year than the former"; but he contends that, "as almost every author and gardener has adopted Sabine's name, it seems better to retain it." This ground for retaining sinensis is insufficient, but as a matter of fact it is the earlier name, as part ii. of Lindley's Collectanea, in which it occurs, was published on April 1, 1821, while pranitens Ker {Bot. Mag. t. 539) dates from the 1st of May of the same year. Loureiro's Primula sinensis, which is of course much earlier, has never been identified, but the description shows that it is not a Primula ; the existence of Loureiro's name, however, induced Ker to substitute /)/v2»/i('?is for Sabine's sinensis, and his action will commend itself to those who adopt the rule "once a synonym always a synonym." It may be noted that the plant from Terra del Fuego, mentioned by Ker {loc. cit.) as "recorded in the Banksian Manuscripts as Primula antarctica " (a name not taken up in the Index Kewensis) is P. magellanica Lehm. DECADES PLANTARUM NOVARUM AUSTRO- AFRICANARUM AUOTORE R. SCHLECHTER. (Continued from p, 345.) DECAS VI. 51. Phylica chionophila, sp. n. Fruticulus erectus ramosus, fere pedalis ; ramulis, primum puberulis, demum glabratis, teretibus dense foliatis ; foliis erecto-patentibus patentibusve brevissime petiolatis, linearibus subacutis, primum puberulis mox glabratis, marginibus revolutis, 0'5-0-8 cm. longis ; capituhs subglobosis niveis ad apices ramulorum, 1-1-2 cm. diametientibus ; involucri foliolis linearibus vel lineari-lanceolatis subacutis sericeo-puberulis, margine villoso-ciliatis, apice subpenicillatis, vulgo floribus sequi- longis ; bracteis linearibus dimidio superiore paulo dilatatis, villosis, flori fequilongis ; bracteolis calyci basi adnatis, angustissime lineari- bus villosis, calyci paulo brevioribus ; calyce c. 0-5 cm. longo, extus dense sericeo-villoso, segmentis erecto-patentibus segmeutis ovatis subacutis, apice iutus incrassatis, intus glabris, 0-2 cm. longis ; petalis e basi breviter unguiculata rhomboideo-rotundatis, obtusis subcucullato-concavis, glabris, 0-1 cm. longis ; autheris rotundatis obtusis, filamentis subulatis glabris, ?equilongis ; stylo crassiusculo cylindrico, 0-1 cm. longo, stigmate capitato, basin antherarum vix excedente. In regioue austro-occidentali : In saxosis montis " Mostertshoek- DECADES PLANTARUM NOVARUM AUSTRO-AFRICANARUM. 429 berg" in ditione Ceres, alt. c. 5700 ped., Oct. 1894; R. Marloth. No. 1987. Allied to P. brachysepala Sond. and P. eriophora Berg. ; it is distinguished by the larger heads and involucre. 52. Indigofera Evansii, sp. n. Herba perennis decumbeus, e basi ramosa ; ramis filiformibus elongatis, glabris, laxe foliatis ; foliis graciliter petiolatis erectis vel suberectis, 3-£oliolatis, petiolo late obovatis obtusis, breviter mucronulatis, basi acutiusculis, breviter petiolatis, subaequalibus, 1-1*5 cm. longis, supra medium 0-8-1-1 cm. latis, petiolo usque ad 3 cm. longo; stipulis e basi oblique lanceolata subulatis, acutissimis, 0"4-0'5 cm. longis; racemis gracillimis lateralibus erectis, folia multo excedentibus, laxe plurifloris ; pedunculo filiformi glaberrimo, pedicellis filiformi- bus glabris, calyci fere fequilongis ; calyce late campanulato, alte 5-fido, vix 0-3 cm. longo strigilloso, segmentis erecto-patentibus subu- latis, sinubus latis ; vexillo hama uuguiculato late obovato, apice breviter exciso, basi concavo, multinervi, 0-6 cm. longo, glabro ; alis haud unguiculatis, oblique subfalcato-oblongis obtusiusculis, multinerviis, basi paulo angustatis, concavis, 0"6 cm. longis, medio fere margine inferiore paulo ampliatis, 0-2 cm. latis, glabris; carina naviculari, apiculata, glabra, basin versus angustata infra medium utrinque brevicalcarata, 0-6 cm. longa; antherarum apiculo amplo; ovario glaberrimo, 10-ovulato. In regione austro-orientali : In elivis montium Drakensbergeu in ditione Polela (Nataliag), alt. 6000-7000 ped., Febr. 1896 ; M. S. Evans, No. 636. Allied to I. procumhens L., but with much slenderer habit. The entire want of unguicula to the scarlet petals is remarkable. 53. Wahlenbergia brachycarpa, sp. n. Herba annua erecta, ramosissima, 7*15 cm. alta ; ramulis filiformibus minutissime puberulis, laxe foliatis ; foliis patentibus patulisve linearibus vel lineari-lanceolatis acutis vel subacutis, sessilibus, minute puberulis, 0*4-0-6 cm. longis : floribus axillaribus terminalibusque, graciliter pedicellatis, pedicellis filiformibus minutissime puberulis, 0-4-0'7 cm. longis ; calyce 5-angulari, alte 5-fido, c. 1*5 mm. longo, glabro, tube depresso brevi, segmente erectis lineari-subfiliformibus acutis, basin versus obtuse carinatis, 0"1 cm. longis vel paulo longioribus; corolla pallide caerulea, campanulata, 0-6 cm. longa, glabra, segmentis ovatis obtusiusculis erecto-patentibus ; antheris linearibus obtusis, vix 0-2 cm. excedentibus, filamenti subfiliformibus medio ciliatis, vix 0*1 cm. excedentibus ; stylo filiformi, 0-4 cm. longo, dimidio superiore glanduloso-papuloso, stigmatibus 3, brevibus oblongig obtusis ; capsula subturbinata depressa, 3-valvis, calycis segmentis paulo ampliatis coronata, medio 0-2 cm. diametiente. In regione austro-occidentali : In collibus arenosis prope vil- 1am Clanwilliam, alt. c. 400 ped., Oct. 1896; L. C. Leipoldt, No. 325. A very distinct species approaching W. payiiculata A. DC. in its pubescence, bearing, however, very different fruits. The flowers are blue. 430 DECADES PLA.NTARUM NOVARUM AUSTRO-AFRICANARUM. 54. Helipterum Marlothii, sp. n. Frutex erectus, ramosus, fide collectoris 30-40 cm. altus ; ramis dense tomentoso-lanatis, validis, dense foliatis ; foliis subimbricatis oblongo-ligulatis, sub- acutis, utrinque tomeutosis, dorso 1-nerviis, 2-3 cm. longis, medio fere 0-9-l"2 cm. latis ; flornm capitulis c. 50-floris, subglobosis, e. 1-5 cm. diametientibus, ad apices ramulorum pluribus, subcorymbosis, breviter pedunculatis ; involucro niveo, foliolis imbricatis erecto-pateutibus, oblougis obtusissimis, flores baud excedeutibus ; fioribus tubulosis, 0*9 cm. longis, tubo subcylin- drico, dimidio superiore interior! paulo latioriore, segmentis erecto- patentibus ovatis obtusiusculis, 0"1 cm. longis; antberis anguste linearibus subacutis, basi sagittatis, 0-4 cm. longis, apices loborum subattingentibus, filaraentis filiformibus glabris, 0-3 cm. longis; stylo filiformi glabro, brachiis subfiliformibus, 0'3 cm. subattingen- tibus antberarum apices paulo excedentibus ; acbeniis oblongo- cylindricis, glandulosis ; pappi setis subplumosis tubo corollae fequilongis, basi concretis. In regione austro-occidentali : in rupium fissuris montis " Ma- troosberg " in ditione Worcester, alt. c. 5800 ped., Maio 1894; Dr. R. Marloth, No. 1994. This is one of the plants which stands midway between Heli- chrysum Vaill. and Helipterum DC, having less plumose pappus- bristles than is generally the case in Helipterum, hardly more plumose than those of Helichrysum sesamoides Thbg. ; yet its close affinity to Helipterum eximium induces me to place it in this genus. 55. Athrixia asteroides Bolus & Schltr., sp. n. Suffi'utex pluricaulis, gracilis, 40-60 cm. altus ; caulibus simplicibus vel subsimplicibus, teretibus, scabro-puberulis, foliatis ; foliis erecto- patentibus vel suberectis, sessilibus, linearibus acutis, basi sub- cordatis, marginibus plus minusve revolutis, scabridis, internodia duplo vel plus duplo excedentibus, 3-4 cm. longis, medio fere 0-2-0*4 cm. latis ; capitulis florum 2-3 cm. diametientibus, ad terminalibus pluribus laxe subcorymbosis, longe pedunculatis, distanter paucibracteatis, scabrido puberulis ; involucri foliolis imbricatis, linearibus acutissimis. minute dorso puberulis ; fioribus radii c. 20, iuvolucrum fere duplo excedentibus, e basi subfiliformi- tubulosa in ligulam linearem acutam vel 3-dentatam, 0"8 cm. longam, dilatatis, subtus sparsim puberulis; fioribus disci tubulosis, c. 0*5 cm. longis, extus breviter hispidulis, tubo apicem versus sensim paulo dilatato, segmentis erecto-patentibus triangulo-ovatis subacutis, vix 0*1 cm. longis ; antberis anguste linearibus obtusi- usculis, basi subacutis, filamentis angustissime linearibus vix 0*1 cm. excedentibus; stylo filiformi, glabro, brachiis 1*5 mm. longis, antberarum et loborum apices attingentibus ; achaeniis subcylindricis, brevissime hispidulis, pappi setis asperis acutis- simis, tubo corollfe subfequilongis, squamulis baud interjectis. In regione austro-occidentali : In collibus. Maxwell, prope Ixopo, Natalise, alt. 4000-5000 ped., Jan. 1896; M. S. Evans, No. 625. Nearest allied to A. Gerrardi Harv. from Zululand, but well DECADES PLANTARUM NOVARUM AUSTRO-AFRIOANARUM. 431 characterized by the want of interposed scales between the pappus- bristles, the totally hispidulous achenes, and the purple (not blue) ray-flowers. 56. Diascia Pentheri, sp. n. Herba pusilla, habitu fere D. Ber