Parasitic Fungi of Illinois. 233 



short-cylindrical, little or not. at all recurved; spores subglo- 

 bose or elliptical, tuberculate, 18-21 ^; spermagonia seldom 

 found, mostly preceding the secidia, scattered over the spot on 

 either side of leaf. 



On Plantago Virginica: Union, April 15, 4106, 4126, 

 April 17, 4134, April 26, 4305, April 27, 4333; Jackson, April 

 19, 4180, April 28, 4361; Johnson, May 13, 4667. 



The determination of this species was made from the speci- 

 men in Ravenel's Fungi Americani, No. 483. 



M. lysimachise, (Schl.) Wallr. 



Hypophyllous (also on the petioles). Spots distinct, yel- 

 lowish, scarcely thickened; aecidia somewhat circinate, short, 

 the recurved border very narrow; spores subglobose, epispore 

 thick, conspicuously tuberculate, 21-24 by 22-27 /*; spermago- 

 nia few, central, above. 



On Lysimachia ciliata: McLean, June 1, 4882. 



The above description is taken from specimens on Lysima- 

 chia ciliata, and agrees, save in the irregularly circinate arrange- 

 ment of the aecidia, with the specimens in Rabenhorst's Fungi 

 Europaei, No. 391. A specimen from Wisconsin on L. lanceo- 

 lata is distinct, especially in the characteristics of the spores, 

 but otherwise as well. It is not known what the Schweinitzian 

 ^Ecidium lysimachice is. If the same as Schlectendal's Cceoma 

 lysimachice, the second authority for the name should be 

 Schweinitz; if different, the question arises as to which name 

 shall be allowed to stand. At all events there does not seem 

 to be good reason for writing, as is sometimes done, ^ cidium 

 lysimachice, Lk. 



M. pentstemonis, Schw. 



Hypophyllous. Spots definite, purple, yellow-bordered, 

 usually small, somewhat thickened ; aecidia clustered, short, the 

 deeply recurved border rather coarsely split ; spores subglobose, 

 inconspicuously tuberculate, 18-21 /*; spermagonia few, cen- 

 tral in the spots on both sides of leaf. 



On Pentstemon pubescens: Union, April 16, 5014 (Earle), 

 April 17, 4138; Johnson, May 12, 4645, May 16, 4698. 



