222 Illinois State Laboratory of Natural History. 



length more or less recurved and many times divided, becoming 

 pulverulent, pale yellowish; spores subglobose or elliptical, epi- 

 spore rather thick, finely but conspicuously tuberculate, IS by 

 21-24 ,0.; spermagonia minute, honey-yellow, mostly scattered 

 on the upper surface of the affected area. 



On Anemone Pennsylvania: Champaign, June 1), 4 ( .W4. 

 June 10, 4956. 



M. ranunculi, Schw. 



Mostly hypogenous. Equally usually densely associated 

 over the whole surface of the leaf, or over definite patches; 

 aecidia recurved, border narrow and many times split; spores 

 subglobose or elliptical, finely echinulate, 15-21 by 18-24 /*: 

 spermagonia numerous, scattered among the aecidia on same 

 side of leaf, minute. 



On Ranunculus abortivus: Union, April 12, 4030, April 13, 

 4066, April 14, 4097, April 15, 4106|, April 17, 4131: Jackson, 

 April 18, 4165, April 28, 4363; Pulaski, May 5, 4507; McLean, 

 May 23, 4751, May 29, 4805, May 30, 4840. 



M. punctatum, Pers. 



Hypophyllous. Spots effused, yellowish ; aecidia uniformly 

 scattered over large portions or the whole of the leaf-surface, 

 not usually crowded, rather large, deeply divided into few 

 (about four) widely spreading recurved lobes, thin but firm; 

 spores subglobose to oblong, almost smooth, brown, about 18- 

 21 /*, or 15-18 by 21-27 jt; spermagonia uniformly and re- 

 motely scattered oil both surfaces, conspicuous, reddish brown. 



Simple, scattered, peridia subimmersed, mouth subcontiriuous, pow- 

 der compact, fuscescent. Persoon, Syn. Fung., p. 212. 



On Hepatica triloba: Champaign, May 1. Anemone 

 'rosa: Riverside, near Chicago, June 2. J. C. Arthur. 



This is jEtidium quadrifidum, DC. There is on Anemone 

 nemorosa a species supposed to be different (not so far found in 

 Illinois) known as JE. anemones, Pers., or ^E. leucospermti-m. 

 DC. In this last the pseudoperidium is more often, but less 

 deeply, divided, and the border more distinctly rolled, and the 

 spermagonia are very much less conspicuous, produced, how- 



