Arthur : New Species of Uredineae 663 



The sori of this species are deep seated in the tissues of the 

 host, not simply beneath the epidermis, as usually is the case, and 

 the opening at first is a pore, which is gradually enlarged. In 

 each sorus there are generally a few uredospores, which are golden 

 yellow, globose, 24-26 /i in diameter, and minutely verrucose. 

 There are also a few pseudospores, which are colorless, globose, 

 37— 52/i in diameter, and coarsely verrucose. Before dehiscence 

 of the sorus these are situated between the layer of teleutospores 

 and the roof of the sorus. The nature of the pseudospores is not 

 apparent. 



Puccinia vilis sp. no v. 



Sori amphigenous, oblong or linear, seated on brown spots, 

 long covered by the epidermis. 



II. Sori brown ; uredospores elliptical, ovate or globose, 18- 

 26 x 22-30 fi, brownish-yellow; wall thick, 3-4 /i, bluntly echinu- 

 late appearing verrucose ; pores four, equatorial, conspicuous. 



III. Sori dark brown ; teleutospores elliptical to obovate, 19- 

 23 x 33-45 fi ; wall of medium thickness ; apex obtuse, thickened, 

 somewhat deeper color ; base rounded or narrowed ; pedicel tinted, 

 firm, shorter than the spore. 



On leaves of Pamciun Crus-galli L., Nordness, Iowa, Sept. 17, 

 1898. Alois R Kovarik, comm. by E. W. D. Holway. Appears 



Hub 



ovalift 



Puccinia paniculariae sp. no v. 



Sori amphigenous, oblong, small, long covered by the epi- 

 dermis. 



II. Uredospores subglobose or oblong, pale yellow, 15-21X 

 18-26 /1; wall of medium thickness, minutely echinulate ; pores 



six, scattered. 



III. Teleutospores oblong, clavate or almost linear, brown, 

 very little constricted, 15-19x43-70//, apex rounded or obtuse, 

 occasionally with a few papillae, somewhat deeper tinted but not 

 thickened ; base narrowed into the very short, colored pedicel ; 

 paraphyses none. 



Panicularia Americana (Torr.) M 



Wa 



and Aug. 3, 1898, the last taken as the type. / C Arthur. An 



