112 



Mycologia 



suited in the conclusion that there was no essential difference be- 

 tween the two. Balsamorrhiza and Wyethia, the host genera of 

 the two species, are very closely related, and the distribution of 

 P. Balsamorrhizae includes that of P. Wyethiae. 



The life history of this species has been unknown ; no collections 

 of aecia have ever been made to our knowledge on either host. In 

 May, 1919, the writer made a collection of uredinia on young 

 leaves of Balsamorrhiza sp. at The Dalles, Oregon, which, when 

 studied, showed a few pycnia associated with the uredinia, which 

 occurred in elongated groups along the petioles and the midribs of 

 the leaves. The pycnia are few, gregarious, inconspicuous, orange- 

 yellow, flask shaped, 70-100 by 100-130 /x, the ostiolar filaments 

 projecting slightly. This indicates that the species is a brachy- 

 Puccinia referable to the genus Bullaria of the classification pro- 

 posed by Dr. Arthur. 



Following is the full synonymy of this species as interpreted 

 above : 



Puccinia Balsamorrhizae Peck, Bull. Torrey Club 11 : 49. 1884 

 Trichobasis Balsamorrhizae Peck, Bot. Gaz. 6: 276. 1881. 

 Uredo Balsamorrhizae DeToni ; Saccardo, Syll. Fung. 7 : 842. 

 1882. 



Trichobasis Wyethiae Peck, Bot. Gaz. 7: 45. 1882. 

 Puccinia Wyethiae Peck ; Harkness, Bull. Cal. Acad. Sci. 2 : 442. 

 1887. 



Dicaeoma Balsamorrhizae Kuntze, Rev. Gen. 3 3 : 468. 1898. 



On Carduaceae [Heliantheae] : 

 Balsamorrhiza sp., Wyethia sp. 



Type locality: [Salt Lake City], Utah, on Balsamorrhiza 

 macrophylla. 



Distribution : Colorado, Utah, and Montana to British Colum- 

 bia and California. 



Puccinia vaga sp. nov. 



II. Uredinia hypophyllous, becoming somewhat amphigenous, 

 scattered, round, small, 0.2-04 mm. in diameter, early naked, pul- 

 verulent, cinnamon-brown, ruptured epidermis conspicuous; ure- 

 diniospores globoid or broadly obovoid, 21-24 by 23-26 /x; wall 



