100 Peck : NEW SPECIES OF FUNGI 
July. S. Davis. The umbilicus is darker at the bottom. The 
marginal striations persist in the dried specimens. 
Eccilia Subacus 
Pileus thin, submembranous, conic, convex or expanded, 
broadly depressed, umbilicate or truncate, smooth and shining 
when fresh, densely pruinose when dry, white ; lamellae thin, dis- 
tant, adnate or slightly decurrent, white becoming pinkish; stem 
slender, fragile, equal or slightly tapering upward, glabrous, stuffed 
or hollow, white; spores angular, uniguttulate, 10-12 y long, 
6-8 p» broad. 
Pileus 0.6-2.5 cm. broad; stem 2-5 cm. long, 1-2 mm. thick. 
Gregarious, growing among grass and bushes. Stow, Massa- 
chusetts. September. S. Davis. 
This species is very closely related to Acctlia Acus Smith, but 
it differs from that species in the even margin of the pileus, in the 
adnate or but slightly decurrent lamellae, and in the absence of an 
umbilicus or in having only and rarely a shallow one. The upper 
part of the stem is sometimes sprinkled with white granules. 
Flammula betulina 
Pileus fleshy, convex becoming nearly plane, floccose or fibril- 
lose, roughish, viscid when young, subviscid when old, sometimes 
slightly appendiculate on the margin, buff-colored, flesh white ; 
lamellae thin, broad, close, ventricose, adnate or decurrent with a 
tooth, whitish becoming cinnamon-brown; stem fleshy, fragile, 
equal, fibrous, stuffed, striate at the top, whitish ; spores elliptic, 
6-8 » long, 4—5 » broad. 
Pileus 5-12 cm. broad; stem 5-7 cm. long, 6—g mm. thick. 
Decaying wood of white birch. Stow, Massachusetts. October. 
S. Davis. 
In the young plant there is a slight webby veil which some- 
times adheres in fragments to the margin of the pileus, but usually 
it is fugacious. The floccose squamules on the pileus are some- 
times concentrically arranged, 
Inocybe decipientoides 
Pileus rather thin, subconic becoming nearly plane, umbonate, 
fibrillose, squamulose in the center, grayish or grayish-brown, the © 
umbo brown, flesh white ; lamellae adnexed, ventricose, subdistant, 
whitish becoming brownish-ferruginous, white on the edge; stem 
