216 IJlinois State L((horatorif of Natxi-aJ Hi.^toi-t/. 



19-24 ft; teleiitosori scattered or united in groups^ often very 

 numerous and sometimes confluent, low. at first orange-yellow, 

 changing to pale reddish brown; teleutospores about four-celled, 

 cylindrical or enlarged above, epispore thin, smooth. 



Uredo sonchi-arvensis. Crowded, subconfluent, fulvous, sori nearly 

 plane, irregular. Hab.: frequent in autumn on leaves of Sonchua ar- 

 vemis in fields after harvest. — Persoou, Syn. Fung., p. 217. 



On leaves of Vernonia fasciculata : Tazewell, July 22. 

 2491, II.; Champaign, Aug. 11, 1023, II., III.; Piatt, Aug. 15. 

 1070, II., III., Aug. 17, 1111. II., in.; McLean, Sept. 6, 5671, 

 II., III., Oct. 6, 1810, II., III., Oct. 13, 1862, II., III.; LaSalle. 

 Sept. 14, 1545, II., III., Sept. 29, 6240, III.; JoDaviess, Sept. 

 15, 5911,11.; Jersey, Oct. 13, 6296, II., III.; Jackson, Oct. 22, 

 1955, II., III.; Union, Oct. 24, 1970, 1984, II., III., 1985, II.. 

 III.. 1986. II., III., Oct. 26, 2034, Oct. 27, 2067, II. III.: Pu- 

 laski, Nov. 4. 2233. Elephantopus CaroUnianus : Union. Oct. 

 26. 2033, II., in. Aster suf/ittifoUus: Jackson, April 21, 4213. 

 JI.; Pulaski, May 5, 4508, II., 4509, II., May 6, 4532, II., May 

 10,4592, II.; McLean, July 12, 2488, II., July 15, 2486, II.. 

 July 29, 2487, II., Aug. 1, 2463, II., III., Aug. 6,2485,11. 

 2489, IL, Oct. 18, 1885, II., III.; McHenry, Aug. 20, 1162, II.; 

 LaSalle, Sept. 13, 1507, II. ; Stephenson, Sept. 13, 5823,11.. 

 Sept. 14, 5881, II., IIL, JoDaviess, Sept. 16, 5950, II. ; Rock 

 Island, Sept. 27, 1685, II.; Fulton, Oct. 3, 1741, II. Aster sjis.: 

 Jackson, April 25, 4292, II. ; Johnson, May 12, 4650, II. ; Adams. 

 July 11, 5499, II., 5500, II.; McLean, Aug. 1, 2490, II.; Piatt. 

 Aug. 10, 1008, II. ; McHenry, Aug. 24, 1283, IL; Cook, Sept. 6, 

 1452, II. ; JoDaviess, Sept. 19, 5998, II. ; Fulton, Oct. 3, 1736, 

 IL, IIL; Union, Oct. 21, 1906, IL, III. Solidago latifoUa: Mc- 

 Lean, Aug. 1, 2481, IL, Aug. 6, 2483, IL, 2484, it., Oct. 12. 

 1853, IL, III. S. altissima: Adams, July 1, 5378, IL, July 3, 

 5386, IL, July 7, 5448, IL; Lee, Sept. 9, 5752, II. S. ulmifolia: 

 McLean, Aug. 6, 2482, IL; LaSalle, Sept. 17, 1570. S. Cana- 

 densis: Adams, July 11, 5498, II. ; McLean, July 12, 2479, IL. 

 July 15, 2478, II.,'2480, IL, IIL, July 16, 2477, IL, Aug. 6. 

 2476, IL, Oct. 18, 1879, II. ; McHenry, Aug. 20, 1178, IL, Aug. 

 24, 1279, IL; Stephenson, Sept. 13, 5817, II. ; Rock Island, 

 Sept. 24, 1619, IL, IIL, Sept. 27. 1684, IL, IIL; Fulton, Oct. 3, 

 1743, II. ; Union, Oct. 25, 2006, IL, IIL, Oct. 27. 2060, IL, 



