rai-(is/f/c Fiiiif/i of Ill/Hois. ISl 



singly on leaves and stem, round or soniewluit 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 ix; pedicels hyaline, about the length of 

 the spore. 



On (i(i//iiiii ((nic/tniifiH : Ciiampaign, Aug. 13, 1037; Piatt, 

 Aug. IT). 10()2, Aug. 17, IIK); McHenry, Aug. 20, 1.188, Aug. 

 22, 1201. Aug. 23, 1237, Aug. 28, 130(5;' Lee, Sept. 8, 5723; La 

 Salle, Sept. 13, 15H), Sept. 30, r)253; Stephenson, Sept. 13, 5831 ; 

 JoDaviess, Sept. K), 51)55; Ogle, Sept. 23, ()137|; Henry, Se])t. 

 2S, 1727; Jersey, Oct. 14, <)03'.). r/. frljionnii: Champaign. 

 June 9, 4U35, L, III.. June 10. 4057. I.. HI.; Adams, June 27, 

 5308, L, III., June 20, 5343, I., III. 



Single-celled teleutospores are rather numerously found. 



P. tenuis, Burrill. 



1. Hyi)opliyllous. rarely also e})ipliyllous: a-cidia clustered 

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

 the narrow border irregularly lacerated and recurved: spores 

 subglobose, very minutely tuberculate, 14-lS u. (\Ec/(Iinn 

 triiiie, f^i:h\x.) 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- 

 s|>icuously pointed, 15 by 40 ,« : pedicels hyaline or slightly 

 colored, half as long as the spore. 



.Ecidium tenne, Scbw. Spots yellowisli, evaiu-sceut, very small : 

 peridia scatte/-ed, little elevated, but, what is peculiar, amphigenous — 

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

 nitz, N. Aui. Fungi, No. 2889. 



On leaves of Eii[)(d()r'niin agerafoidcs: Johnson. May 11, 

 4<)12, I.; McLean, Aug. (), 2302; Champaign. Aug. 13. 1058; 

 Piatt, Aug. 17, 11(13; Lake, Aug. 27, 1340. 



P. Kuhnise, Schw. 



11., 111. Amphigenous; sori not prominent nor compact, 

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



