CLINTON: NORTH AMERICAN USTILAGINEAE. 
507 
review of the literature of smuts ; descriptions of the germinations of 
26 species ; the systematic position of smuts ; the morphological value 
of yeasts.) 
21. Brefeld, O. Die Clilamydosporen bei den Ustilagineen. Unters. Ge- 
sammt. Myk., 7 : 224-229. 1889. 
(Shows that the smut spores are clilamydospores similar to those of the 
Basidiomycetes — Nyctalis, etc.) 
22. Brefeld, O. Die Brandpilze, II. Die Brandkrankheiten des Getreides. 
Unters. Gesammt. Myk., 11: 1-98. 1895. Illustr. 
(Gives a general statement of the methods of previous investigators 
with infection experiments and those employed by himself; treats fully 
of infection experiments with the loose smuts of oats and barley and 
with Ustilago cruenta on Sorghum saccharatum and Ustilago Maydis on 
Zea Mays.) 
23. Brefeld, O. Hemibasidii. [Brandpilze, III.] Unters. Gesammt. Myk., 
12 : 99-236. 1895. Illustr. 
(Discusses 64 species, giving germination of many of these; describes 
18 new species and 2 new genera, Anthracoidea and Ustilaginoidea.) 
24. Bubak, F. Ein Beitrag zur Kenntniss der bohmischen Peronosporeen, 
Ustilagineen und Uredineen. Verh. Zool.-Bot. Ges., Wien, 47 : 226. 1897. 
(Lists 13 species, with their hosts and localities of collection, from Bo¬ 
hemia.) 
25. Burrill, T. J. The Ustilagineae, or Smuts; with a List of Illinois 
Species. Proc. Amer. Soc. Micr., 1888 : 1-13. 1888. 
(Gives a general account of this group together with descriptions of 
the genera and a list of 21 species and their hosts found in Illinois.) 
26. Clinton, G. P. Broom-Corn Smut. Bull. Ill. Agr. Exp. Sta., 47 : 373- 
412. 1897. Illustr. 
(Discusses life history of Ustilago Sorghi , especially with reference to 
spore formation ; re-names it Cintractia Sorghi-vulgaris ; gives experi¬ 
ments relating to prevention by seed treatment.) 
27. Clinton, G. P. The Smuts of Illinois’ Agricultural Plants. Bull. Ill. 
Agr. Exp. Sta., 57 : 28^-360. 1900. Illustr. 
(Gives notes on and the results of experiments with the following 
smuts: Ustilago Avenae, U. levis, U. perennans , U. Hordei, U. nuda , 
U. Tritici, U. Zeae, U. Crameri , U. striaeformis, Tilletia foetens, Cin¬ 
tractia Sorghi-vulgaris , C. Reiliana — placed under Cintractia here.) 
28. Clinton, G. P. Two New Smuts on Eriocaulon septangulare. Rhodora, 
3: 79-82. 1901. Illustr. 
(Describes as new Tolyposporium Eriocauli and Ustilago Eriocauli , • 
giving germination of each.) 
29. Clinton, G. P. North American Ustilagineae. Journ. Myc., 8 : 128- 
156. 1902. 
(Gives a list of species, hosts, and their reported distribution in North 
America; also reports a number of synonyms, excluded species, and 
describes several new species ; forms the preliminary report of the 
present paper.) 
