174 Illinois State Laboratory of Natural History. 
P. viole, DC. 
L, II., III. Amphigenous, or often hypogenous. I. Spots 
definite or more or less diffused, sometimes covering large areas 
of the blades and of the petioles; ecidia irregularly (usually 
densely ) clustered, short, rather coarsely and deeply lacerated 
and irregularly recurved; spores subglobose, epispore very thin, 
minutely tuberculate, 12-18 »; spermagonia not found. IL., 
III. Sori sparsely scattered, or collected in little irregular 
groups upon discolored spots (Aucidium viole, Schum.). II. 
Spores subglobose, elliptical or obovate, epispore thick, sharply 
echinulate, cinnamon-brown, nearly as dark as the teleutospore, 
18-24 ». II. Spores usually broadly elliptical, frequently ir- 
regular, little or not at all constricted at the septum, which is 
thick, vertex thickened, furnished with a conspicuous, tinted, 
usually obtuse apiculus, and a somewhat similar projection 
sometimes occurs on the side of the. under segment near the 
septum, base mostly obtusely rounded, epispore rather thick, 
conspicuously but rather finely tuberculate, 18-24 by 26-37 u; 
pedicels hyaline, fragile, sometimes more or less lateral, not 
longer than the spore. 
On Viola cucullata: MeLean, Aug. 4, 2284; McHenry, Aug. 
22, 1207, II., IIL, Aug. 31, 1891; Lake, Aug. 29, 1360; Ste- 
phenson, Sept. 14, 5888, II., IIL; JoDaviess, Sept. 20, 6034, 
TIL; Ogle, Sept. 28, 6137, ITI. V. striata: Jackson, April 18, 
4163, I., April 19, 4173, I.; Union, April 24, 4245, L, IIT. V. 
pubescens: McLean, June 24, 5285, II., IL, July 15, 2286, 
Aug. 1, 2285, Aug. 6, 2287, Adams, June 28, 5326, IT., ITI. 
Viola sp.: Kane, Aug. 30, 1381. 
P. Mariz-Wilsoni, Clinton. 
I. Amphigenous. Aicidia regularly scattered, often 
closely associated over large areas of the host; peridia lacini- 
ated and excurved; spores subglobose, epispore thin, finely 
echinulate, 15-18 »; spermogonia scattered among the ecidia. 
III. Sori hypogenous, irregularly clustered, little elevated, 
long covered by the epidermis; spores irregular and various, 
more often elliptical, not constricted at septum, the latter 
strongly developed; apex obtuse, sometimes furnished with a 
