Pa)-aslfir Fungi of IJJinois. 189 



On Seymeria ynacrophiiUa: McLean, July 2V), 2804, 2805, 

 Sept. 2; Champaign, July 31; Union^ Aug. IH. 



This is perhaps near P. reroniccp (Schum.), from which it 

 differs in the size of the sori, the shape of the spores, and espe- 

 cially in the stout persistent pedicels. In the form of P. veron- 

 ica' with persistent pedicels, the spores are oblong to spindle- 

 form, as well as furnished with a thickened apex. 



P. lateripes, B. & R. 



TL. III. Amphigenous. Sori usually small, round or an- 

 gular, scattered, or sometimes irregularly clustered; uredospores 

 subglobose. strongly echinulate, 16-21 by 21-24 ju; teleuto- 

 spores broadly oval, little constricted, ends rounded, segmoits 

 nearly equal, surface minutely roughened, 20-22 by 25-82 ^; 

 pedicel hyaline, once to twice the length of the spore, usually 

 more or less laterally produced. 



Spots yellow or quite obsolete; sori scattered; spores short, obtuse 

 at either end, almost horizontal, with a long, lateral, tlexuous stem. — 

 Berkeley, Grevillea III., p. 52. 



On Buellia ciliosa: Lee, Sept. 9, 5762; Rock Island, Sept. 

 2<). l()r>2: Ogle, Sept. 26, 6183; Jersey, Oct. 12, 6269: Union, 

 Oct. 22, 1958, II.. III. P. strepens: LaSalle, Sept. 14, 1529; 

 Jersey. Oct. 13, 6292, Oct. 14, 6310; Union. Oct. 81, 2150, II., 

 III.; Champaign. Oct. 31, 6878. 



This occurs on both sides of the leaf and also on the stem. 

 LTredospores occur sparingly among the teleutospores. Those 

 on P. ciliosa are globose, slightly echinulate, 22 .a in diameter; 

 and the teleutospores 21-22 by 80-32 .n. The pedicels attain a 

 length of 35 ,u, but are easily broken. The uredospores on P. 

 strepnis are subglobose, 16-18 by 21 ^: the teleutospores are 

 smaller, darker colored and firmer, and the pedicel longer and 

 less easily broken, size 19-21 by 25-28 ,w; and the pedicels reach 

 a length of 75 u.. 



P. menthae, Pers. 



I. Jj]cidia irregularly clustered upon dark-colored more 

 or less swollen spots on the leaves and stems, round, or o\\ the 



