98 Peck : NEW SPECIES OF FUNGI 
Collybia hirticeps 
Pileus thin, submembranous, convex, umbilicate, dry, densely 
clothed with long tufted or matted appressed mummy-brown 
hairs, which are often somewhat radiately arranged in the fresh 
plant, giving a sulcate-striate appearance to the margin of the pileus, 
margin in the young plant and in the mature dried plant strongly 
incurved ; lamellae moderately close, rounded behind, slightly ad- 
_nexed or free, persistently white ; stem long, tough, equal, stuffed 
with fibrils, tomentose, colored like or a little paler than the pileus; 
spores globose or subglobose, 4—5 y long, 4 4 broad. 
Pileus 1.5—-2.5 cm. broad; stem 5-7 cm. long, 2-3 mm. thick. 
Cespitose ; decaying wood or branches in woods. Pigeon lake, 
Ontario. August, 1905. C. Guillet. — Pennsylvania. D.R. Sum- 
stine. Closely allied to Collybia zonata Peck, from which it is at 
once distinguished by its brown color, the entire absence of zones 
and the longer coarser hair of the pileus. 
Omphalia serotina 
Pileus submembranous, convex, sometimes slightly depressed 
in the center or subumbilicate, widely striate on the margin when 
fresh and moist, slightly striate when dry, grayish-brown, grayish- 
white or subcinereous; lamellae rather broad, subdistant, adnate 
or slightly decurrent, white; stem slender, hollow, glabrous, 
slightly villose-tomentose at the base, pallid; spores narrowly 
elliptic, 8-10 » long, 4-5 » broad. 
\  Pileus 1-2 cm. broad; stem 1.5-2.5 cm. long, 1 mm. thick. 
Among fallen leaves in woods. Near Boston, Massachusetts. 
December. Mrs. E. B. Blackford. A small species somewhat 
ambiguous in character. When a specimen is placed in water it 
revives as in specimens of Marasmius, but its texture is not tough 
as in that genus. Neither is the pileus as distinctly umbilicate as 
is usual in species of Omphalia. It appears to be closely related 
to Omphalia grisea Fr., from which its smaller size and puret 
white lamellae will separate it. 
Entoloma murinum 
Pileus thin, fragile, conic, convex or nearly plane, umbonate, 
dry, silky in appearance, glabrous to the touch, grayish-brown Of 
mouse-colored, the thin margin often wavy and split, striate in the 
dried plant ; lamellae thin, close, sinuate, adnate, white becoming 
pale-pink ; stem slender, brittle, equal or slightly tapering UP- 
