174 Illinois State Laboratory of Natirral Histori/. 



P. violse, DC. 



T.. IT.. 111. Amphigenous. or of ten hypogenous. I. Spots 

 definite or mora or less diffused, sometimes covering large areas 

 of the blades and of the petioles; aecidia 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. II., 

 III. Sori sparsely scattered, or collected in little irregular 

 groups upon discolored spots (^cidium violfe. Schum.). II. 

 Spores subglobose, elliptical or obovate. epispore thick, sharply 

 echinulate, cinnamon-brown, nearly as dark as the teleutospore, 

 18-24 fi. 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 f-; 

 pedicels hyaline, fragile, sometimes more or less lateral, not 

 longer than the spore. 



On Viola cHciiUata: McLean, Aug. 4, 2284; McHenry, Aug. 

 22, 1207, II., III., Aug. 31, 1391; Lake. Aug. 29, 1360; Ste- 

 phenson, Sept. 14, 5888, II., III.: JoDaviess, Sept. 20,6034, 

 III.; Ogle, Sept. 23, 6137, III. V. striata: Jackson, April 18, 

 4163, I., April 19, 4173, I.; Union, April 24, 4245, I., III. V. 

 pubescens: McLean, June 24, 5285, II., III., July 15, 2286, 

 Aug. 1, 2285, Aug. 6, 2287, Adams, June 28, 5326, II., III. 

 Viola S2>.: Kane, Aug. 30, 1381. 



P. Marise-Wilsoni, Clinton. 



I. Amphigenous. ^Ecidia regularly scattered, often 

 closely associated over large areas of the host; peridia lacini- 

 ated and excurved; spores subglobose, epispore thin, finely 

 echinulate, 15-18 y-; spermogonia scattered among the aecidia. 

 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 



