No. 2, November, 1920] MORPHOLOGY AND TAXONOMY OF FUNGI, ETC. 109 



779. Murrill, W. A. Oudemans' work on fungi. [Rev. of: OuDEMANS, C. A. J. A. 

 Enumeratio systematica fungorum. Vol. I. cxxvi + 1880 p. Martinus Nijhoff: The Hague, 

 1919.] Mycologia 12: 169. 1920. — "This first volume is valuahle because of its extended bib- 

 liography and numerous citations to the literature of the fun^i which it contains. As a host 

 index for the fungi, it includes all European plants [cryptogams to orchids; remainder of mono- 

 cotyledons and all dicotyledons to appear in subsequent volumes], many of which occur also 

 in the United States, and also all plants grown in conservatories in Europe, among which will 

 be found many species from tropical America." — //. R. Rosen. 



780. Odell, W. S. A rare fungus new to Canada. Canadian Field-Nat. 34: 10-13. 6 fig. 

 1920. — Morchella bispora Sor. was first found in Canada at Chelsea, Quebec, and near Ottawa, 

 Ontario. — IJ\ H. Emig. 



781. Overholts, L. O. Some mycological notes for 1919. Mycologia 12: 135-142. PI. 

 9-10. 1920. — Notes based on collections made in Pennsylvania, clarifying and amplifying 

 previous descriptions of the following fungi: Clavaria ornatipes Peck, Craterellus pistillaris 

 Fr., Fomes baker i (Murrill) Sacc, Merulius aureus Fr., Mucronella ulmi Peck, Paxillus corru- 

 galas Atk., Polyporus Schweinitzii Fr., Porta semitincta Peck., Tremella sparassoidea Lloyd, 

 Tremella vesicaria Fr., Tremellodon gelatinosum (Scop.) Fr., Trichoglossum hirsulum (Pers.) 

 Boudier. — H. R. Rosen. 



782. [Pennell, Francis W.] Index to American mycological literature. Mycologia 12: 

 172-174. 1920. 



783. Standley, Paul C. Rusts from Glacier National Park, Montana. Mycologia 12: 

 143-148. 1920. — A list of 61 species of rusts collected by the writer and determined by Dr. 

 J. C. Arthur. — H. R. Rosen. 



784. Subramiam, L. S. A Pythium disease of ginger, tobacco, and papaya. Mem. Dept' 

 Agric. India (Bot. Ser.) 10: 181-194. PL 1-6. 1919.— The morphology of the fungus, its sys- 

 tematic position, and remedial measures for the disease are described. The name Pythium 

 Butler i is proposed. — F. M. Schertz. 



785. Suematsu, N. On the artificial culture of Helminthosporium Oryzae. Bot. Mag. 

 Tokyo 33 : 291-297. 3 fig. 1919. — A new method of isolating the fungus is reported. A small 

 piece of diseased leaf is removed to a petri-dish containing rice-leaf decoction agar. After two 

 days plenty of spores are formed, then by transferring one of the spores a pure culture is 

 secured. Germination of the spores of the fungus generally takes place at both ends of the 

 cell. Secondary spore formation does not occur so frequently as observed by Ravn in his 

 Hel. gramineum. In drop culture conidiophores bear one to four spores, and frequently 

 fertile tips continue growth as successive conidia are formed. Spore formation takes place 

 in bright daylight. Cultural experiments with use of several culture media were performed, 

 and the results are tabulated in detail. — T. Matsumoto. 



LICHENS 



786. Havaas, Johan. Lichen vegetationen ved Mosterhavn. [Lichen vegetation by 

 Mosterhavn.] Bergens Mus. Aarb. (Naturh. Raekke) 1917-1918: 1-53. 1918.— List, by Mos- 

 terhavn, of lichens from the vicinity of Bergen, including a number not before found in Nor- 

 way. The moist climate with little snow is favorable to lichens. — A. Gundersen. 



787. Lettan, G. Beitrage zur Lichenographie von Thiiringen. [Lichenography of Thur- 

 ingia.] Hedwigia 61: 97-175. 1919. — Collections made in practically all parts of Thuringia, 

 including particularly valleys and mountains. Distribution with respect to elevation, geo- 

 logical formation, dominant vegetation, etc. ; 549 species are described, 70 being new to Thur- 

 ingia, 4 or 5 new to Germany, none new to science. — D. Reddick. 



