Pardslfic Fii))f/i of Illinois. 187 



usucilly furnished with punctiform to Wiirt-like projections, 

 18-25 by 30-45 i^: pedicels hyaline, fragile, not usually longer 

 than the s])ore. 



Uredo JtoHcuhmnnn, Alb. & Schw. Uredo black, sori scattered, 

 minute, subrotund, pulvinate, powder rather loose, spores unequal, 

 subcaudate. — Albertini and Schweinitz, Conspect. Fung. p. 128. 



On CirsiiiDi discolor: Adams, July (>, 5425, 11. C. Janceo- 

 Jafitin: LaSalle, June lU, 5237, II., Sept. 29, 6241, II., III.; 

 Tazewell, July 22, 2410, II., Lee, Sept. 8, 5718, II.; Stephen- 

 son, Sept. 14, 5890, II.; JoDaviess, Sept. 18, 5986, II., III.; 

 Rock Island, Sept. 21, 1608, II., III., Sept. 24, 1645, II., III., 

 Sept. 26, 1663, II., III., Sept. 27, 1674, II., III.; Ogle, Sept. 23, 

 6149, II.; Fulton, Oct. 1, 1770, II., III., McLean, Oct. 6, 1794, 

 II., III., Oct. 12, 1841, TL, IIL, 1843, II., HI., Oct. 13, 1858, 

 II., ni., Oct. 18, 1890, II., III.: Champaign, Nov. 9, 2389, II., 

 III., Nov. 12, 2390. Taraxacum dens-Ieonis : McLean, May 

 25, 4776, II., May 20, 4828, TL, July 6, 2391, II., July 16, 2392, 

 II., July 25, 2393, II., Oct. 11, 1835, II.; Champaign, June 8, 

 4902,11., Nov. 7,2277, IT., UL: LaSalle, June 19, 5229, II., 

 Sept. 14, 1540; Adams, July 7, 5447,11., July 11. 5501, IT.; 

 McHenry, Aug. 22, 1218, IL; Boone, Sept. 2, 1419, IL; Ste- 

 jdienson, Sept. 13, 5828, IT.: Rock Island, Sept. 21, 1613, IL, 

 Se])t. 24, 1653, IT. Hieracium Canadense: McHenry, Aug. 20, 

 1197; Boone, Sept. 2, 1426; Stephenson, Sept. 13, 5833, IL, 

 TIL; Ogle. Sept. 23, 6130, IL, ITL; LaSalle, Sept. 30, 6)256, 1 1., 

 TIL 



Under this species are included the ff)rnis that have been 

 known on Cirsium as P. eirsii, Lasch., and P. conipositaniiH, 

 Schl., on Tara.racioii as P. variahilis. Grev.. and on Hicraciiiui 

 as P. hieracii, Mart. The teleutospores of American specimens 

 are very minutely warty, or apparently smooth, agreeing with 

 Winter's remarks on this species in Hedwigia, XTX., p. 20. 

 Nearly or quite all the specimens on Cirsium (except No. 2410) 

 present both uredo- and teleutoforms, but on Taraxacum teleu- 

 tos])ores are found only in s})ecimens collected late in the sea- 

 son (No. 2277). 



