Parasitic Fungi of Illinois. 189 



On Seymeria macrophylla : McLean, July 29, 2304, 2305, 

 Sept. 2; Champaign, July 31; Union ; Aug. 16. 



This is perhaps near P. veronicce (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 f orn of P. veron- 

 icce with persistent pedicels, the spores are oblong to spindle- 

 form, as well as furnished with a thickened apex. 



P. lateripes, B. & R. 



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

 gular, scattered, or sometimes irregularly clustered; uredospores 

 subglobose, strongly echinulate, 16-21 by 21-24 ^5 teleuto- 

 spores broadly oval, little constricted, ends rounded, segments 

 nearly equal, surface minutely roughened, 20-22 by 25-32 /*; 

 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, flexuous stem. 

 Berkeley, Grevillea III., p. 52. 



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

 26, 1662; Ogle, Sept. 26, 6183; Jersey, Oct. 12, 6269; Union, 

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

 Jersey, Oct. 13, 6292, Oct. 14, 6310; Union, Oct. 31, 2150, II., 

 III.; Champaign, Oct. 31, 6378. 



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

 Uredospores occur sparingly among the teleutospores. Those 

 on R. ciliosa are globose, slightly echinulate, 22 ^ in diameter; 

 and the teleutospores 21-22 by 30-32 /*. The pedicels attain a 

 length of 35 ^, but are easily broken. The uredospores on R. 

 strepens 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 /*; and the pedicels reach 

 a length of 75 i*. 



P. menthse, Pers. 



I. jEcidia irregularly clustered upon dark-colored more 

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



