Paras/'f/r Finn//' of Illinois. 181 



singly on leaves and stem, round or somewhat elongated; 

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

 ful, smooth, apex strongly thickened, obtuse or variously 

 pointed, sometimes broadly truncate, usually narrowed to the 

 base, 18-21 by 23-45 fi; pedicels hyaline, about the length of 

 the s])ore. 



On GaJiinii co)ici)i»Hiii : Champaign, Aug. 18, 1087; Piatt, 

 Aug. 15. 10()2, Aug. 17, 1116; McHenry, Aug. 20, 1188, Aug. 

 22, 1201. Aug. 28, 1287, Aug. 28, 1806; Lee, Sept. 8, 5728; La 

 Salle, Sept. 18, 1519, Sept. 80, 6258; Stephenson, Sept. 18, 5881; 

 JoDaviess, Sept. 16, 51)55; Ogle, Sept. 28, 6187^; Henry, Sept. 

 28, 1727; Jersey, Oct. 14-, 6080. (i. friflorHiH : Champaign, 

 dune 0, 4085, I., TIL. June 10. 4057, 1.. HI.; Adams, June 27, 

 5808. I., IIL, June 20, 5848, L, III. 



Single-celled teleutospores are rather numerously found. 



P. tenuis, Burrill. 



1. Hypophyllous, rarely also epiphyllous; tecidia clustered 

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

 the narrow border irregularly lacerated and recurved: spores 

 subglobose, very minutely tulierculate, 14-18 «. (\Fci(liiiii 

 tciiue, Schw.) in. 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- 

 s|>icuously ])ointed, 15 by 40 ^; i)edicels hyaline or slightly 

 colored, half as long as the spore. 



^■Ecidium tenve, Scbw. Spots yellowish, evanescent, very small ; 

 peridia scatte/'ed, little elevated, but, what is peculiar, amphigenoiis — 

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

 nitz, X. Am. Fungi, No. 2889. 



On leaves of Eupatoriuni ayeratoides: Johnson, May 11, 

 4612,1.; McLean, Aug. 6, 2802; Champaign, Aug. 18, 1058; 

 Piatt. Aug. 17, 1108; Lake, Aug. 27, 1840. 



P. Kuhniae, Schw. 



II., III. Amphigenous; sori not pi'ominent nor compact, 

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



