BOTANICAL GAZETTE. 127 



FucciNiA Grindeli^e. — Spots pale, orbicular, one to three lines in 

 diameter, sometimes confluent; sori amphigenous, minute, crowded, 

 black or blackish-brown; spores variable, oblong, obtuse or obtusely 

 pointed, strongly constricted at the septum, .0016-002 of an inch long, 

 .0008-001 broad; pedicel hyaline, equal to or exceeding the spore in 

 length. 



liadical leaves of Grindelia squarrosa. Colorado. "Not common.'' 

 The variability of the spores is quite noticeable. In some the septum 

 is wanting, in others the pedicel is attached to the side of the basal 

 cell, a peculiarity sometimes seen in the spores of P. vanahilis. 



PucciNiA CLADOPHILA. — SoH uumerous, cauline, orbicular elliptical 

 or oblong, sometimes confluent, surrounded by the ruptured epider- 

 mis, blackish-brown; spores subelliplical, scarcely constricted, obtuse, 

 .0012-0015 of an inch long, .000S-.0009 broad; pedicel very short. 



Stems of Stephanomeria minor. Colorado. "On but one individual, 

 although the plants are common. '^ The branches sent were abund- 

 antly infested with the fungus. No leaves accompanied the speci- 

 mens, so that I am unable to say whether they are ever attacked or 

 not. 



Uromyces plumbarius. — Sori amphigenous, scattered or subconflu- 

 ent, at first covered by the epidermis and of a peculiar shining leaden 

 hue, at length exposed and of a dark ferruginous-brown or blackish- 

 brown color; spores obovate or subelliptical, obtuse or rarely very 

 bluntly pointed, .0009-.0012 of an inch long, about .0008 of an inch 

 broad ; pedicel very short or obsolete. 



Leaves of GEnothera Ccvspitosa. Colorado. "Not common." The 

 beautiful metallic hue of the covering epidermis is suggestive of the 

 specific name. 



Uromyces Brandegei. — Spots none; sori scattered, rarely slightly 

 confluent, prominent, orbicular elliptical or oblong, black; spores 

 subglobose or broadly elliptical, rough with minute warts or papillae, 

 .0012-.0016 of an inch long, .0011-.0015 broad; pedicel hyaline, usu- 

 ally equal to or exceeding the spore in length. 



Leayes of Bouteloua curtipendula. Colorado. "Common." This is 

 a fine species, very distinct from [7, Gramiinuii. It is with pleasure 

 that I dedicate it to its discoverer. 



Uromyces simulans. — Sori epiphyllous, varying from subrotund to 

 linear, often crowded and subconfluent, ferruginous-brown; spores 

 variable, subglobose, obovate or elliptical, rather large, minutely 

 rough, .0013-0016 of an inch long, .OOl-.OOll broad ; pedicel about 

 equal to or shorter than the spore in length, easily separating from it. 



