216 Illinois State Laboratory of Natural History. 



19-24 /*; teleutosori 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 Soncliu* ar- 

 vensis in fields after harvest. Persoon, 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., III.; 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, II.; 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. Elepltantopus Carolimanus: Union. Oct. 

 26, 2033, II., III. Aster sacjittifolius : Jackson, April 21, 4213. 

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

 10,4592. II.; McLean. July 12, 2488, II, July 15, 2486, 111 

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

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

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

 Sept. 14, 5881, II, III, JoDaviess, Sept. 16, 5950, II.: Rock 

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

 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, II.; Cook, Sept. 6, 

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

 II, III.; Union, Oct. 21, 1906, II, III. Solidago latifolia: Mc- 

 Lean, Aug. 1, 2481, II, Aug. 6, 2483, II, 2484, II, Oct. 12. 

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

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

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

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

 July 15, 2478, 11,2480, II, III, July 16, 2477, II, Aug. 6. 

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

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

 Sept. 24, 1619, II, III, Sept. 27, 1684, II, III.; Fulton. Oct. 3, 

 1743,11.; Union, Oct. 25, 2006, II, III, Oct. 27. 2060, II., 



