488 
narrow, free, white, becoming flesh color; stem short, glabrous, 
white, with the cup-like remains of the membranous volva at the 
base; spores subglobose, uninucleate, .0003 in. long, nearly as 
broad. 
Pileus 6 to 9 lines broad; stem about 1 in. long, .5 to I line 
thick. 
Wet ground under weeds. Kansas. July. Bartholomew. 
This species is allied to V. parvula, from which it is separated 
by the striate margin of the pileus and the larger and nearly 
globose spores. In the dried specimens there are transverse ridges 
or wrinkles between the marginal striations which give a reticu- 
late appearance. 
PLUTEUS STERCORARIUS. 
Pileus very thin, nearly plane, glabrous, pure white: lamellae 
rather broad, close, free, flesh color; stem equal, solid, glabrous, 
white ; spores large, even, commonly uninucleate, .0005 to .0006 
in. long, .0003 broad. 
Pileus about 2.5 in. broad; stem 3 in. long, 3 lines thick. 
Manure heaps. Kansas, July. Bartholomew. 
The habitat of this species is peculiar. Most of the species of 
this genus grow on decaying wood and have smaller spores. 
INOCYBE RADIATA. 
Pileus thin, convex or subcampanulate, distinctly umbonate, 
silky-fibrillose, slightly rimulose, distantly radiately wrinkled when 
dry, yellowish-brown, the umbo commonly blackish-brown ;_ la- 
mellae rather broad, close, emarginate, brownish becoming tawny- 
cinnamon when old, whitish on the edge; stem equal, solid, sub- 
glabrous, a little paler than the pileus ; spores subovate, slightly 
nodose or angular, .0004 to .0005 in. long, .0002 to .00025 broad. 
Pileus about 1 in, broad ; stem I to 2 in. long, 1 to 2 lines 
thick. 
In open grassy ground. Massachusetts. Aug. and Sept. 
W. D. Jackson. 
The species belongs to the Rimosae. In general appearance 
it is similar to /. fuscodisca, I. infida and I. agglutinata, but the 
radiating ridges of the dried pileus and especially the peculiar 
spores easily separate it from any of these. Its spores are some- 
what variable. Some are nearly even, others have one or two 
nodes, and many of them are irregular or angular like the spores 
