386 Bacteriologie. — Bryophyten. 



Verderau, L., Le toxine du Bacillus virgula. (C. R. Soc. Biol. 

 Paris, p. 803—835. 1908.) 



L'auteur extrait d'un vibrion cholerique, qu'il designe sous le 

 nom de Bacillus virgula, un corps cristallise, ayant les caracteres 

 des alcaloides, et provoquant, chez les cobayes et les lapins, les 

 symptomes et les lesions d'une septicemie cholerique experimentale. 

 Cet alcaloTde, auquel l'auteur donne le nom de virguljine, s'extrait 

 par la methode de Stass-Otto, de cultures de la bacterie, preala- 

 blement traitees par la soude ä P/o- On sait que ce traitement, 

 applique par R. Turro ä certains microbes, les dissout en donnant 

 une Solution toxique. M. Radais. 



Cotton, A. D., The New Zealand species of Rhodophyllis. (Bull, 

 of miscell. Information, r. botanic Gardens, Kew. N°. 3. p, 97 — 102. 



1908.) 



The author has studied the specimens preserved at Kew and 

 in the British Museum and in the possession of Mr. R. M. Laing. 

 As a result he is able to revise the descriptions of the older species 

 and to describe one novelty. Thus the species are: Rhodophyllis 

 acanthocarpa J. Ag.; R. Laingii sp. nov.; R. nienibranacea Harv.; 

 R. Gunnii Harv. ; R. lacerata Harv. He lays emphasis on the arrange- 

 ment of the cortical cells, and shows that the size of the tetraspo- 

 rangium varies considerably. He has cleared away the difficulty that 

 existed of recognising the plants from their descriptions and of re- 

 conciling the Statements of different writers. Particularly is this the 

 case with Rhodophyllis membranacea which after it was united (erro- 

 neously) with Rhodymenia fimbriata suffered neglect. R. membra- 

 nacea is abundant on the coast of New Zealand; but R. fimbriata 

 does not occur there at all. A. Gepp. 



Evans, W., On the Ricciae of the Edinburgh District. (Trans- 

 actions and Proceedings of the Botanical Society of Edinburgh. 

 Vol. XXIII. 1907. p. 285—287. 1 plate.) 



The author gives an account of the distribution of the species 

 of Riccia in the reservoirs around Edinburgh during the autumn 

 of 1905, when the level of the water was remarkably low. He found R. 

 sorocarpa to be present in all the reservoirs visited; R. glauca in 

 eight; R. crystallina in five; R. Lescuriana in three; and R. ßuitans 

 f. canalicidata. R. crystallina was previousl}'^ unknown in the Scot- 

 tish flora. Fossombronia cristata was also growing plentifully in most 

 of the reservoirs. Photographs of the living plants are given. 



A. Gepp. 



Jackson, A. B., The Moss Flora of Hampshire and the Isle 

 of Wight. (Hampshire Field Club and archaeological Society's 

 Papers and Proceedings. 1907. 12 pp.) 



An enumeration of 220 species and several varieties, with their 

 local stations. It is based partl}^ on recent collections, partly on 

 earlier published records, manuscripts and harbaria. A, Gepp. 



Nicholson, W. E., The Mosses of Sussex. (Hastings and East 

 Sussex Naturalist. I. 3. 31st January 1908.) 



This is an enumeration of the moss-flora of Sussex, comprising 



