358 



1909 the same author (Mycol. 2:223. 1910) used teliospores from C. 

 aristata from North Dakota to successfully infect U. gracilis with pro- 

 duction of aecia. In 1910 (Mycol. 4:17. 1912) the results of 1909 were 

 repeated and successful sowings on U. gracilis were again made by using 

 Indiana material to infect U. gracilis. 



Kelierman in 1902 (Jour. Myc. 9:9. 1903) was also successful in 

 obtaining infection on U. gracilis by using telial material on C. riparia 

 and C. strict a from Ohio. 



94. PucciNiA ViOLAE (Schum.) DC. Fl. Fr. 6:62. 1815. 

 Aecidium Violae Schum. Enum. PI. Saell. 2:224. 1803. 



On Violaceae: 



Viola affinis LeConte, Newark, May 15, 1906, I, (1622). 

 Viola Lahradorica Schw. (?), Faulkland, Aug. 1, 1884, II, III, 



A. Commons, (193). 

 Viola lanceolafa L., Selbyville, Oct. 4, 1907. (1938). 



95. PucciNiA WiNDSORiAE Schw. Trans. Am. Phil. Soc. II 4:295. 1832. 

 Aecidium Pteleac Berk. & Curtis; Berkeley, Grevillea 3:60. 1874. 



On Poaceae: II, III. 



Tricuspis seslerioides (Michx.) Torr., Lewes, Nov. 16, 1907, 

 (1852); Newark, Oct. 16, 1907, (1834). 

 This species has been shown to be connected with Aecidium Pteleae 

 on Ptelea trifoliata by Arthur in 1899 (Bot. Gaz. 29:273. 1900). He 

 succeeded in obtaining the development of typical uredinia of this spe- 

 cies on Tricuspis seslerioides by inocukiting with aeciospores of Aecidium 

 Pteleae from Indiana. These results were confirmed in 1902 (Bot. Gaz. 

 35:16. 1903) and again in 1904 (.Jour. Myc. 11:56. 1905). 



96. PUCCINIA Xanthii Schw. Schr. Nat. Ges. Leipzig 1:73. 1822. 



On Ambrosiaceae: 



Ambrosia trifida Mill., Newark, Sept. 15, 1905, (15.56) ; .July 26, 



1906, (1616); Aug. 23, 1907, (1723). 



Xanthium sp., Newark, Sept. 15, 1905, (1540) ; Lewes, Aug. 14, 



1907, (1691). 



This common species is a lepto-form possessing telia only in the 

 life history. 



Carleton (Bur. PI. Ind. U. S. D. A. Bull. 63:26. 1904) in 1897 and 

 1898 conducted culture experiments showing that this species is auto- 



