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MM. Bonnier and De Layens is published under the auspices of the 

 Minister of Public Instruction. It is an illustrated key, of the kind 

 which has been already provided for the fungi of France, which was 

 noticed in this Journal for 1891 (p. 283) ; and the ingenuity there 

 commented on is at least as noteworthy in the present Flora. The 

 characters selected for illustration are taken from such parts of the 

 plant as most easily distinguish the species ; sometimes a tiny 

 figure of the whole is introduced. There is a glossary, and a small 

 but useful map : the order of arrangement is that to which we in 

 this country are accustomed, and the same is pursued in M. 

 Acloque's book, for which we confess a preference. Here also the 

 arrangement is that of a clavis, but the illustrations are limited to 

 the genera, with the exception of those in the analytical table of 

 families : the more compact shape of the book is handier for the 

 pocket, and the type, though small, is beautifully clear. But it is 

 difficult to decide which is the better book for the field unless one 

 has an opportunity of testing them there, and it may be that the 

 more ordinary arrangement of the pages in M. Acloque's volume 

 predisposes us in its favour. It is evident, however, that a great 

 deal of trouble has been bestowed upon each, and that either will 

 form an invaluable companion upon summer rambles. 



ARTICLES IN JOURNALS. 



Annate of Botany (June). — J. G. Baker, 'New Ferns of 1892-3.' 

 — R. J. Harvey Gibson, 'Anatomy of Selaginella ' (4 plates). — A. C. 

 Seward, Rachiopteris WUUamsoni, sp.n. (1 plate).— J. B. Farmer & 

 J. Reeves, ' Occurrence of Centrospheres in Pellia epiphylla' (1 plate). 

 — J. B. Green, « Germination of pollen-grain and nutrition of pollen- 

 tube.' — P. Groom, ' Extra -floral nectaries of Aleurites.' 



Bot. Cmtralblatt. (Nos. 27, 28). — E. Fischer, 'Resultate einiger 

 neuerer Untersuchungen viber der Entwicklungsgeschichte der 

 Rostpilze.'— (Nos. 29, 30). J. R. Jungner, ' Ueber die Einwirkung 

 des Klimas, hauptsachlich der Niederschlage, auf die Gestalt der 

 Friichte.' 



Bot. Gazette (June 20). — S. G. Wright, ' Leaf movement in 

 Gercu canadensis' (2 plates). — W. Deane, 'Thomas Morong.' — 

 F. C. Newcombe, ' Influence of mechanical resistance on life-period 

 of cells.' — F. Renauld & J. Oardot, ' New Mosses of N. America ' 

 (2 plates). — E. Walker, ' Richardia afHcana: — G. F. Atkinson, 

 • OlpUriehum, a new genus of mucedinous fungi ' (1 plate). — A. J. 

 McClatchie, ' Germinating myxomycetous spores.' 



Bot. Zdtung (July 1). — E. Stahl, 'Einige Versuche iiber 

 Transpiration und Assimilation.' 



Bull, de VHerb. Boissier (No. 6). — E. Bescherelle, C. Warnstorf, 

 & F. Stephani, 'Cryptogamse Centrali-Americanse in Guatemala, 

 Costa Rica, Columbia & Ecuador.' — C. J. Forsyth Major & W. 

 Barbey, ' Eos.' — A. de Jaczewski, ' Sur quelques especes critiques 

 de Pyrenomycetes suisses.' — Perrier de la Bathie & A. Songeon, 



