July 1907] Notes from Mycological LiUraitire 183 



Lyman, George Richard. 



The very important work by this author on "Culture Studies 

 on Polymorphism of Hymenomycetes" is reported, as one of the 

 contributions from the Cryptogramic Laboratory of Harvard 

 L^niversity, in the proceedings of the Boston Society of Natural 

 History, Vol. 33, No. 4, p. 125-209, pi. 18-26. Secondary spores 

 are common, produced in immense numbers and varied fashion, 

 in the Phy corny cetes and Ascomycetes. But among the 

 Autobasidiomycetes they are less commonly known, less varied, 

 the basidiospores being the main or only agent of reproduction. 

 The paper reviews the present knowledge and then includes an 

 account of cultures of 28 species, — over 100 having been studied. 

 Of the 28 species, five possess oidia, and chlamydospores were 

 produced in abundance for about half dozen species. The perfect 

 form of Aegerita Candida was detected, namely, Peniophora 

 Candida (Pers.) Lyman n. sp. The author concludes that 

 conidia and other highly specialized secondary methods of repro- 

 duction are rare, occurring more frequently in the Thelephoraceae, 



Blakeslee, A. F. 



"Heterothallism in Bread Mould, Rhizopus nigricans, Bo- 

 tanical Gazette, June, 1907. Comments are made on two papers 

 recently published by Hamaker and by Namyslowski ; then fol- 

 lows an account of cultures from zygosporic material used by 

 the latter author; and this is the judgment: The evidence at 

 hand leads one to the conclusion that the large majority of the 

 Mucorineae are heterothallic. 



Chester, Frederick D. 



In the 15th Annual Report of the Delaware College Agri- 

 cultural Experiment Station, 1903, we find a valuable article 

 entitled : "Observations on an Important Group of Soil Bacteria ; 

 Organisms related to Bacillus subtilis." He says by the Bacillus 

 subtilus group is understood those members of the genus Bacillus, 

 as defined by Migula, which produce spores, liquefy gelatine 

 and grov; under aerobic conditions. A synopsis is given, also 

 descriptions of the ten species. 



Hori, S. 



It is noted that Ustilago esculenta P. Henn. causes the 

 jafifected plants Zizania latifolia, at Tokio, Japan, to retain their 

 green color for a long time in autumn, and thus they are at once 

 distinguished from the normal plants which turn yellow early in 

 autumxU. The smutted part, extremity of the shoot, remains 

 entirely concealed for a long time between the leaves and the leaf 

 .•sheaths. 



