﻿Arthur: New species of Uredineae 587 



On Phrygilanthus Sonorae (S. Wats.) Rose & Daniels {Loranthus 

 Sonorae S. Wats.), Cape San Lucus, Lower California, Mexico, 

 March, 191 1, /. N. Rose 16396. In reference to the host Dr. 

 Rose writes that no species of the true Loranthus has yet been 

 found in America. The rust is a striking one. As no pycnia 

 could be found, and the teliospores appear to arise from the same 

 mycelium as the aecia, it seems probable that the aecia in this 

 collection are the secondary form, and that the rust does not 

 produce separate uredinia, but simply occasional urediniospores 

 in the teUal sori. The collection, although not ample, shows a 

 fine development of the rust. 



Uromyces abbreviatus sp. no v. 



O. Pycnia hypophyllous, scattered among the telia, not 

 numerous or conspicuous, subepidermal, in section globose, 130- 



III. Telia hypophyllous, scattered over large areas, round, 

 0.2-0.5 mm. across, early naked, pulverulent, chocolate-brown; 

 teliospores ellipsoid or broadly obovoid, 20-23 by 24-37 A'> rounded 

 at both ends, or somewhat narrowed below; wall chestnut-brown, 

 uniformly thin, 3 ju, with a slight umbo over the pore, smooth; 

 pedicel colorless, delicate, half as long as tRe spore, fugacious and 

 appearing short. 



On Psoralea Purshii Vail, Winnemucca, Nevada, July 1901, 

 Griffiths &• Morris, type (Griff. West Am. Fungi 390) ; on P. 

 physodes Dougl., Puget Sound Navy Yard, Bremeston, Washing- 

 ton, July 22, 1912, E. Bartholomew 4752. There is also an 

 undated collection of this species in the Farlow Herbarium at 

 Cambridge, Massachusetts, collected at Calistoga, California, by 

 H. W. Harkness, on P. physodes. This species Is the short-cycle 

 form corresponding to Uromyces Psoraleae Peck. The aspect of 

 the fungus in gross and microscopic characters is scarcely different 

 from the corresponding spore-structures of the long-cycle form. 

 In the specimens seen the telia are more numerous and highly 

 pulverulent, making the fungus more conspicuous. 



Puccinia Camegiana sp, nov. 

 O. Pycnia amphigenous, in oval groups 1-2 mm. long, i 



