136 26 U Mycologia 



22, on Dirca and Ptelea trifoliata, May 24, on Ptelea. Only on 



Ptelea was infection secured, abundant pycnia showing from both 



- 



sowings June 2, and aecia June 7. 18 



Successful cultures reported now for the first time. 

 The following species have never before been cultivated in Amer- 

 ica or elsewhere, so far as the writer knows. 



1. Puccinia tumidipes Peck. Excellent telial material of this 

 species on Lycium pallidum, was sent by Mr. W. A. Archer, col- 

 lected in the Organ Mountains, N. Mex., on Oct. 9, 191 4. As it 

 was found the teliospores would germinate, it was sown Dec. 1, 

 19 14, on plants of Lycium vulgar e, giving a few pycnia only 

 by Dec. 18, with no further development, possibly owing to the 

 poor condition of the host plant. It was sown again on another 

 plant of the same sort Dec. 12, 1914, giving rise to a few groups 

 of pycnia by Dec. 21, and a single uredineal sorus Jan. 16, 1915- 



Although the growth of the fungus was not vigorous, and did 

 not continue to the final stage, yet it seems safe to conclude that 

 the rust is autoecious, and without cupulate aecia. It clearly 

 belongs in the genus Bullaria, where it becomes B. tumidipes 

 (Peck) comb. nov. 



2. Puccinia Distichlidis Ellis & Ev. This rust in the first 

 place was sent to Mr. Ellis in 1891 by F. D. Kelsey of Helena, 

 Mont., and labeled as on " Distichlis maritima" but afterward was 

 shown by the writer 19 to be on Spartina gracilis. On account of 

 this erroneous determination of the host plant, the rust was re- 

 named P. Kelseyi by Sydow. 20 In a study of " Correlation be- 

 tween certain species of Puccinia and Uromyces " Orton 21 came 

 to the conclusion from a comparison of the morphological charac- 

 ters and geographical distribution of Uromyces Spartinae and the 

 rust in hand, that it was " extremely probable that its aecial host 

 is some member of the primrose family, perhaps Steironema" 

 this being one of the aecial hosts for the Uromyces. It has been 



!8 For previous successful cultures see Bot. Gaz. 29: 273. 1900; 35: 16. 

 1903; Jour. Myc. 11:56. 1905- 



!9 Bull. Lab. Nat. Hist. Univ. Iowa 5: 324. 1902. 



20 Sydow, Monog. Ured. 1 : 806. 1904. 



21 Mycol. 4: 202. 1912. 



