Sept. 1904] Notes from Mycological Literature 
287 
formation of ascospores in Erysiphe graminis. He developed 
the fact of some interest that E. graminis is able, under favor¬ 
able circumstances, to produce, as soon as the perithecium is 
formed, ascospores which are capable of at once infecting the 
host plant. 
Ernest S. Salmon's paper on Specialization of Parasit¬ 
ism in the Erysiphaceae, II, is printed in the New Phytologist, 
3:109-121, May 1904. It gives the results of further inocula¬ 
tion experiments, carried out the preceding summer, in which 
conidia were used of the following species, Erysiphe graminis 
DC. on four hosts; Sphaerotheca humuli (DC.) Burr, on one 
host; S. humuli fuliginea (Schl.) Salm. on two hosts; E. cich- 
oriacearum DC. on one host and E. galeopsidis DC. on one host. 
The results obtained seemed to show that in every case the.form, 
of the fungus used has become specialized into a “biologic form." 
The Report of the State Botanist 1903, New York 
Museum, by Charles H. Peck, forms Bulletin 75 (Botany 7), 
1904. This is a pamphlet of 84 pages and four double page 
colored plates. The mycological part consists of descriptions of 
thirteen new species of the higher fungi, also two new varieties 
besides others listed as new to the State; under the head of 
Edible Fungi seven mushrooms are fully and popularly described 
and illustrated. This Bulletin can be obtained from the Director 
of the Museum (Albany, N. Y.) for 40 cents. 
The Introductory part of the article by Ernest S. 
Salmon, On Erysiphe Graminis DC. and its adaptive parasitism 
within the genus Bromus, Annales Mycologici, 2:255-266, Mai 
1904, presents general considerations on the subject of the inter¬ 
relations of ‘biologic forms' and host-species. He says: Now 
the facts show not only the high degree of specialization reached 
by the fungus in its adaptive parasitism to the various species 
of Bromus ; but also that each species of Bromus possesses dis¬ 
tinctive physiological (constitutional ) characters existing con¬ 
comitantly with the specific morphological characters. These 
physiological characters are constant, and render the species 
susceptible or immune in a definite manner, so that the various 
species of Bromus according to their constitution — if one may use 
the term — behave differently to the attack of the ‘biologic forms' 
of the fungus. 
The January No. of the Journal of Mycology (1904) 
gave the following: Morgan — A New Sirothecium; Hedgcock 
— Proof of the Identity of Phoma and Phyllosticta on the Sugar 
Beet; Atkinson — Notes on the Genus Harpochytrium; Arthur 
— Cultures of Uredineae in 1903 ; Kellerman — Notes from My¬ 
cological Literature, VIII; Index to Uredineous Infection Ex¬ 
periments ; American Mycological Society. 
