220 Illinois State Laboratory of Xhtral History. 



O. agrimonise, Schw. 



Hypogenous. Spots yellowish, often confluent and more 

 or less spreading over the surface. Sori small, irregularly, 

 mostly thickly, associated in patches, or over the whole sur- 

 face, orange: spores subglobose or elliptical, epispore rather 

 thin, finely echinulate, 14-16 by 15-20 p. 



Cscoma (Uredo) agi-inwnix, Schw. Spots lutescent; sori minute, con- 

 fluent; spores delicate red-orange, at length faded. Often covering the 

 whole under surface of the leaves. Schweinitz, N. Am. Fungi, No. 2S3o, 

 p. 291. 



On leaves of Agrmionia Eiipatoria: Johnson, May J.1, 

 4617; McLean, July 7, 2511, July 15, 2513, 5560. July 27, 251 4, 

 Aug. 6, 2510, Oct. 6, 1812. Oct. 18, 1877 ;.Taze well, July 22. 

 2512; Piatt, Aug. 17. 1118: Lee. Sept. 8, 5710: LaSalle. Sept. 

 13, 1505, Sept. 17, 1569: Stephenson, Sept. 14, 5880; Ogle. 

 Sept. 22, 6106; Henry, Sept. 28. 1728; Jersey, Oct. 12, 6272. 

 A.parviftora: McLean, Sept. 6, 5673. 



This has been named Vrcdo agrimonice; it w r as placed by 

 Schweinitz in the Uredo section of (Vow, the latter including, 

 according to him, all allied species. But the spores are pro- 

 duced in chains, not borne singly UDOII a stalk. On this ac- 

 count probably, Bonorden (Beitr. z. Kent. d. Coniomyc, p. 20) 

 assigned it to the genus Coleosporium, hence it is known as 

 Coleosporium ochracewn. Without question, however, the 

 form is not the teleuto stage. Until the latter is known it 

 must therefore be Cwowa, and the specific name should, at all 

 events, stand as above. 



C. nitens, Schw. 



Hypophyllous. Sori irregular, flat, usually thickly asso- 

 ciated and confluent, more or less covering the surface, bright 

 orange-yellow; spores subglobose, elliptical or oblong, epispore 

 thin, finely tuberculate, 12-24 by 18-32 ^; spermagoiiia scat- 

 tered, numerous, yellow, mostly on upper side of leaf. 



On Rtibns ocddmtalis: McLean, May 20, 4722, May 25, 

 4777, May 26, 4792; LaSalle. June 15, 41)93. It. riUoxux: 

 Union, April 16, 5016, April 17, 4140, April 24, 4258, April 26, 

 4310, April 27, 4332, April 28. 4375, April 29, 4391; Jackson. 



