224 Illinois State Laboratory of Nataral History. 



Spots orbicular, j^ellow ; subiculum not thickened nor excavated ; 

 peridia small, slightly elevated, subcircinating, numerous, the margin 

 distinctly scalloped and reflexed ; spores subglobose, orange, becoming 

 pale, .00056-.00062 in. in diameter— Peck, Rep. N. Y. State Mus., XXIV., 

 p. 92. 



On leaves of Violn cucidlata: Union, April 24, 4246. 



This seems to differ from ^"E. violiv in the leaf-spots not 

 beino- thickened, in the aecidia and spores, and in the presence 

 of spermagonia. Specimens from Professor Trelease, labelled 

 A^. Petersii, B. & C, on Viola delphinifoliiDit^ cannot be distin- 

 guished from the species described above and earlier named by 

 Peck. 



M. hibisciatum, Schw. 



Hypophyllous. Spots usually few, large, thickened, defi- 

 nite, brown with a yellow border; peridia mostly densely 

 croAvded, sometimes irregularly circinate, subimmersed; spores 

 broadly oval, about 18 by 37 ^t. 



Spots orbicular, yellowish, confluent; peridia irregularly but dense- 

 ly scattered, slender, yellow; spores not compact but loose, yellowish. 

 — Schweinitz, N. Am. Fungi. No. 2877. 



On leaves of Hihisrtis inilif((ris: McLean, July 7, 2429, 

 July 15, 5559. 



M. geranii, DC. 



Hypophyllous. Spots definite, not large, inirplish or yel- 

 low, scarcely thickened; a?cidia circinating, small, short, deeply 

 and rather finely split and much recurved; spores subglobose, 

 ei)ispore thin, thickly tuberculate, 18-21 ju.; spermagonia clus- 

 tered in the center of the spots, on both sides of leaf. 



On Geratiiiitn niacHlatiiiii : McLean, May 28,4752, May 29, 

 4806, May 30, 4833, May 31, 4866, June 1, 4881: Piatt, May 

 28; LaSalle, June 16, 5205. 



iE. impatientis, Schw. 



Hypogenous. Spots sometimes definite, purple, yellow- 

 bordered, more often effused, on the leaves scarcely thickened, 

 on the petioles and stems swollen; aecidia subcircinate or irreg- 



