344 



Helianthus angnstifolhis L., Selbyville, Oct. 4, 1907, (1993). 



Helianthus decapetabis L., Newark, Sept. 7, 1905, (1553, 1624), 

 Aug. 23, 1907, (1724). 

 Carleton (Science 13:250. 1901) was the first in America to record 

 culture experiments showing that the species is autoecious. These results 

 were confirmed by Arthur (Bot. Gaz. 35:17. 1903) whose work indi- 

 cates, however, that there may be biological races. Further evidence of 

 this was obtained in 1903 (Jour. Myc. 10:12. 1904) and in 1904 (Jour. 

 Myc. 11:53. 1905), on further evidence, the conclusion is made that 

 "P. Heliantlii Schw. is a single species having many races, for which 

 H. annuus acts as a bridging host." Further cultural results weie re- 

 corded in Jour. Myc. 12:18. 1906. 



62. PucciNiA HiBisciATUM (Schw.) Kellerm. Jour. Myc. 9:110. 1903. 

 Caeoma Hibisciatum Schw. Trans. Am. Phil Soc. II, 4:293. 1834. 

 Aecidium Napaeae Arth. & Holw. ; Arthur in Bull. Iowa Agr. Coll. 

 1884:166. 1885. 



Aecidium Callirrhoea Ell. & Kellerm. Jour. Myc. 2:4. 1886. 

 Puccinia Muhlenbergiae Arth. & Holw. Bull. Lab. Nat. Hi.st. Univ. 

 Iowa 5:317. 1902. 



Puccinia iosia Arth. Bull. Torrey Club 29:228. 1902. 

 On Poaceae: II, III. 



Muhlenbergia sobalifera (Muhl.) Trin., — Wilmington, Oct. 26, 



1891, A. Commons (1867). 

 Muhlenbergia Schreberi Gmel. (J/, diffusa Willd.), — Newark, 

 Sept. 1907, (1817, 1828). 

 Kellerman (Jour. Myc. 9:110, 232. 1903) was the first to conduct 

 successful culture experiments leading to an understanding of the life 

 history of this species. An extensive series of inoculations with telial 

 material on Muhlenbergia mexicana from Ohio, in which many Malva- 

 ceoi'S hosts were used, resulted in obtaining successful infection of Hi- 

 biscus mocheuios and H. milHaris with production of typical aecia of 

 A. Hibisciatuvi Schw. 



Arthur in 1908 (Mycol. 1:251. 1909) first showed that this .species 

 al.so has for its aecial stage, A. Napaeae A. & H. Infection of Callirrhoe 

 involucrata, resulting in aecia, was obtained following .sowings of telio- 

 spores from M. mcxicana from Kansas. These results were confirmed 



