Part 5, 1916] AGARICACEAE 365 
spores subglobose or broadly ellipsoid, 4-5 y: stipe slender, flexuous, hollow, colored like the 
pileus, mealy or pruinose at the apex, with a whitish villosity at the base, 3.5-7.5 em. long, 
about 2 mm. thick. 
TYPE LOCALITY: Forge, Adirondack Mountains, New York. 
Hazitat: Among mosses and fallen leaves in open places in woods. 
Distrisution: Adirondack Mountains, New York. 
48. Gymnopus uniformis (Peck) Murrill. 
Collybia uniformis Peck, Ann. Rep. N. Y. State Mus. 50:98. 1897, 
Pileus thin, hemispheric or convex, cespitose, 6-12 mm. broad; surface glabrous, hygro- 
phanous, grayish-brown when moist, paler and pruinose when dry, margin thin, even, at first 
involute or strongly incurved: lamellae narrow, crowded, rounded behind, nearly free, whitish: 
spores minute, subglobose, 3-4 »: stipe glabrous or slightly pruinose, equal, grayish-brown, with 
a slight, white, mycelioid tomentum at the base, hollow, about 2.5 cm. long aud 2 mm. thick. 
Typ LOCALITY: Saranac Lake, New York. 
Hapirat: Among mosses on much decayed wood. 
DISTRIBUTION: New York. 
ILLUSTRATIONS: Bull. N. Y. State Mus. 67: 1. M, f. 7-16. 
49. Gymnopus pilularius (Mont.) Murrill. 
Agaricus (Collybia) pilularius Mont. Syll. Crypt. 108. 1856. 
Collybia pilularia Sacc. Syll. Fung. 5: 214. 1887. 
Pileus fleshy, hemispheric, cespitose, 12-15 X 6-8 mm.; surface smooth, brown: lamellae 
adnate with a decurrent tooth, broad, pale-ochraceous: spores globose, 4 4: stipe incurved, 
fragile, hollow, paler than the pileus, the base compressed, decurrent, flocculose, becoming 
striate when dry, 1~2 em. long. 
TYP LOCALITY: Columbus, Ohio. 
Hasitat: On rotten wood. 
DisTRIBUTION: Known only from the type locality. 
50. Gymnopus familia (Peck) Murrill.. 
Agaricus familia Peck, Ann. Rep. N. Y. State Cab. 23:79. 1872. 
Collybia familia Sacc. Syll. Fung. 5: 241. 1887. 
Pileus thin, rather fragile, convex or hemispheric, densely cespitose, 12-24 mm. broad; 
sutface glabrous, somewhat hygrophanous, whitish, yellowish-gray, or brownish, sometimes 
darker or brown on the disk: lamellae narrow, close, rounded at the inner extremity and almost 
free, white: spores globose, 4-5 uw: stipe slender, glabrous, minutely pruinose-pubescent under 
a lens, hollow, white or whitish, commonly with a white, mycelioid villosity at the base, 5-10 
em. long, about 2 mm. thick. 
TYPE Locality: North Elba, New York. 
Hasrrat: On much decayed wood and prostrate trunks of hemlock trees in woods. 
DistRiBuTION: New York. : 
ILLUSTRATIONS: Bull. N. Y. State Mus. 75: pl. 84, f. 1-7; N. Marsh. Mushr. Book, facing p. 67. 
51. Gymnopus Volkertii Murrill, sp. nov. 
Pileus convex to expanded, umbonate at first, often becoming depressed around the umbo, 
solitary, 3-4 cm. broad; surface glabrous, dry, minutely radiate-striatulate, uniformly light- 
brown, margin concolorous, estriate, inflexed when young, becoming uneven, cracked and 
upturned with age: context very thin, white, without characteristic taste or odor; lamellae 
adnexed, narrow, very much crowded, ventricose, white, several times inserted: spores ellipsoid, 
slightly pointed at one end, smooth, hyaline, 7-8.5 X 5-6 u: stipe cylindric, equal, cartilagin- 
ous, hollow, smooth, glabrous, polished, milk-white at the apex, subconcolorous with the pileus 
below, 3 cm. long, 2.5 mm. thick. 
Type collected on a lawn under an oak on buried dead sticks, acorns, and grass roots, near the 
New York Botanical Garden, July 31, 1911, E. C. Volkert (herb. N. Y. Bot. Gard.). 
DisTRiBution: Vicinity of New York City. . ; 
ILLUSTRATION: Mycologia 4: pl. 68, f. 3 (as Collybidium dryophilum). 
