180 Notes from Mycological Literature [Vol. 13 



Hedgcock, George Grant. 



ICxpcrinients touching "Zonation in Artificial Cultures of 

 Cephalothecium and Other Fungi." are reported in the 17th 

 Annual Report of the Missouri Botanical Garden. The fungi 

 used were Cephalothecium, Penicillium, ]\Iucor and Hormoden- 

 dron ; they were grown on agar plates under five conditions of 

 light. It was found that the cultures grown under red and 

 orange light and in darkness exhibited uniform dense spore form- 

 ation over the whole surface of the mycelium. Those under blue 

 light and in ordinary light exhibited distinct daily rings of growth 

 of alternating denser spore formation. 



Hedgcock, George Grant. 



A very important paper giving the result of "Studies upon 

 some Chromogcnic Fungi which discolor Wood," is published in 

 the 17th Annual Report of the Missouri Botanical Garden. Dr. 

 Hedgcock made a thorough study of the fungus-flora of the 

 lumber pile. He reports exhaustively on about two dozen 

 species. The arrangement is after this fashion : ( i ) wood- 

 bluing fungi (Ceratostomella) ; (H) wood-blackening and wood- 

 browning fungi ( Graphium, Hormodendrum, Hormiscium, &c.) ; 

 (HI) wood-reddening fungi (Penicillium, Fusarium). Each 

 fungus was grown upon a number of kinds of wood, as well as 

 upon potato, rice. bean, sweet potato, and other similar media in 

 tubes, in addition to cultures on agar media made from wood and 

 other vegetable decoctions. In many instances new conidial stages 

 of fnugi were discovered ; the new species are fully described. 



Nicholas, Susie Percival. 



Investigations were carried on touching "The Nature and 

 Origin of the binucleated cells in some Basidiomycetes," and re- 

 ported in the transactions of the Wisconsin Academy of Sciences, 

 Arts, and Letters. \'ol. XV, 1904, pul)lished in 1905. Studied 

 were Hypholoma perplexum Pk., species of Coprinus, Rhizo- 

 morphs — Poria, Pholiota praecox Pers., Lepiota naucina, 

 Dictyophora duplicata Ed. Fisch., and Lycoperdon pyriforme 

 SchaefF. The binucleated cells were not found to originate 

 through the formation of any special reproductive apparatus. 

 Their formation is not necessarily followed immediately by the 

 formation of a carpophore but no complete resume can here be 

 attempted. 



Fink, Bruce. 



Cladonia pyxidata and Cladonia pityrea are discussed in 

 "Further Notes on Cladonias, XT." in the July No. of the 

 Br\'ologist, 1907; half tone illustrations, enlarged, are given. 



