212 THE JOURNAL OP BOTANY 



PoTAMOGETON DECiPiENs IN N. AMERICA. — Looking through 

 the lucens specimens of the world in connection with a Potamo- 

 geton possibly unrecorded for Great Britain, I saw a specimen 

 of P. decijjiens Nolte labelled " Lake Ontario : One Tliousand 

 Islands. H. C. Hart." The leaf-bases are quite clasping, the 

 peduncle is five and a lialf inches long and the spike one and a 

 half long. As the United States Boundary seems to touch the 

 shore at Wolf Island and Cape Vincent, it would seem the above 

 record belongs to Canada. The only records I know of for the 

 plant outside Europe are, " Nynee Tal, India. 5. 1845, Griffith" 

 in Herb. Kew," and "PL Altaicce. Dr. 0. Dulnunherg 1881" in 

 Herb. Buchenau at Bremen. — Aethur Bennett. 



BE VIEW. 



The British Mycological Society. Transactions for the Season 

 1915. With two plates (one coloured). Edited by Carle- 

 ton Eea. Published the 4th May, 1916. Worcester: 

 Ebenr. Bayhs and Son, 22, The Cross. Vol. v, part 2, 

 pp. 187-350. Price to non-members, 10s. GfZ. 

 These Transactions steadily increase in importance and 

 interest, and we are inclined to think the part before us the 

 best that has yet appeared. The list of contents, which by the 

 way seems arranged in inverse ratio to their importance, shows 

 considerable variety. New or rare British fungi are described 

 by Mr. J. W. Ellis, Miss Lorrain Smith (microfungi), and the 

 editor : Mr. G. K. Sutherland describes a new genus — Lulioorthia, 

 apparently named from Lulworth, Dorset, where it was found — 

 of Marine Pyrenomycetes, and two new species, Bosellinia 

 lajuinariana and Plcospora laminariana : Miss Lister enumerates 

 the 47 species of Mycetozoa found in the Gower Peninsula in 1915 

 during the Swansea Foray, of which, and of the Spring Foray at 

 Baslow% Derbyshire, the editor gives an account. 



The most important contributions to the volume are those 

 of Mr. Ramsbottom : they include a list of the British Phycomy- 

 cetes with a key to the genera, which might well be reprinted 

 as a hand-list for collectors ; the notes on special genera and 

 species and a general sketch of the history of the classifica- 

 tion of the group show a comprehensive and accurate know- 

 ledge both of early and recent literature ; his paper on " Colour- 

 Standards " is of interest to others than mycologists and we 

 rather regret that it did not appear in some publication more 

 generally accessible. 



Mrs. Rea, the President of the Society for the year, delivered 

 in that capacity an address on " Fungus Illustrations," which is 

 here printed. Herself a practised portrayer of fungi — she men- 

 tions that she has already "painted over fifteen hundred drawings 

 of British Fungi, and many of these include additions to the 

 British Flora" — the subject naturally presented special attrac- 

 tions, and she has compiled a list of works in which fungi have 

 been figured, arranged clironologicall} under the names of their 

 authors. It contains much information and has evidently in- 



