Parasitic Fnnyi of Illinois. 181 



singly on leaves and stem, round or somewhat elongated; 

 spores irregular, elongated, mostly oblong or clavate-ellipti- 

 cal, smooth, apex strongly thickened, obtuse or variously 

 pointed, sometimes broadly truncate, usually narrowed to the 

 base, 18-21 by 23-45 ^5 pedicels hyaline, about the length of 

 the spore. 



On Galium concinnum: Champaign, Aug. 13, 1037; Piatt, 

 Aug. 15, 1062, Aug. 17, 1116; McHenry, Aug. 20, 1188, Aug. 

 22/1201, Aug. 23, 1237, Aug. 28, 1306; Lee, Sept. 8, 5723; La 

 Salle, Sept. 13, 1519, Sept. 30, 6253; Stephenson, Sept. 13, 5831; 

 JoDaviess, Sept. 16, 5955; Ogle, Sept. 23, 6137J; Henry, Sept. 

 28, 1727; Jersey, Oct. 14, 6039. G. triflorum: Champaign. 

 June 9, 4935, I., III., June 10, 4957, L. TIL; Adams, June 27, 

 5308, L, III., June 29, 5343, L, III. 



Single-celled teleutospores are rather numerously found. 



P. tennis, Burrill. 



I. Hypophyllous, rarely also epiphyllous; aecidia clustered 

 in little irregular groups or sparsely scattered, very small, short, 

 the narrow border irregularly lacerated and recurved; spores 

 snbglobose, very minutely tirberculate, 14-18 /*. (JEcidum 

 tfiute. Schw.) III. Hypophyllous: spots small, often conflu- 

 ent, mostly yellow, with a .broad blackish center; sori some- 

 times scattered, usually confluent, effused, slightly convex, 

 covered by the epidermis, dull grayish black; spores oblong- 

 clavate, slightly constricted, usually angular or variously con- 

 spicuously pointed, 15 by 40 ^; pedicels hyaline or slightly 

 colored, half as long as the spore. 



JEcidium tenue, Schw. Spots yellowish, evanescent, very small ; 

 peridia scattered, little elevated, but, what is peculiar, amphigenous 

 closed on the upper surface, open on the lower ; spores pallid. Schwei- 

 nitz, N. Am. Fungi, No. 2889. 



On leaves of Eupatorium ageratoides: Johnson, May 11, 

 4612,1.; McLean, Aug. 6, 2302; Champaign, Aug. 13, 1058; 

 Piatt, Aug. 17, 1103; Lake, Aug. 27, 1340. 



P. Kuhnise, Schw. 



II., III. Amphigenous; sori not prominent nor compact, 

 often ragged from the uneven height of the spores. II. 



