Parasitic Fittif/i (t/ fJ/lnois. 180 



On Seijmeria wacrophijUa: McLean, July 29, 2304, 2305, 

 Sei)t. 2; Champaif^n, July 31; Union, Aug. lO. 



This is ])erha])s near P. reronicce (Schuni.), 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 fom 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. c\: K. 



II.. 111. Aniphigenous. Sori usually small, round or an- 

 gular, scattered, or sometimes irregularly clustered; uredospores 

 subglobose, strongly ecliinulate. 10-21 by 21-24 /*; teleuto- 

 spores broadly oval, little constricted, ends rounded, segments 

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

 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, olituse 

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

 Berkeley, Grevillea III., p. 52. 



On EueUia ciJiosa: Lee, Sept. 9, 5702: Rock Island, Sept. 

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

 Oct. 22, 1958, IL. III. B. 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. cUiosa are globose, slightly echinulate, 22 (i in diameter; 

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

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

 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 fi; and the pedicels reach 

 a length of 75 ;U. 



P. menthse, Pers, 



I. iEcidia irregularly clustered upon dark-colored more 

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



