Par? 5, 1916] AGARICACEAE 335 
rather broad, white or whitish: spores ellipsoid, 5-6 X 3-4 u: stipe white or whitish, hollow, 
glabrous above, clothed with white mycelioid tomentum at the base, 2.5 cm. long, 2-4 mm. 
thick. 
TYPE Locality: Newfoundland. 
Hapirat: On much decayed wood. 
DISTRIBUTION: Known only from the type locality. 
67. Prunulus epipterygius (Scop.) Murrill. 
Agaricus epipterygius Scop. Fl. Carn. ed. 2. 2: 455. 1772. 
Mycena epipterygia Quél. Champ. Jura Vosg. 73. 1872. 
Pileus membranous, campanulate to expanded, subobtuse, solitary or cespitose, 1-3 cm. 
broad; surface variable, cinereous or rufescent, the pellicle viscid, margin striate: lamellae 
adnate with a decurrent tooth, thin, versicolored, whitish, cinereous, bluish-gray, etc.: spores 
ellipsoid, 8-10 X 4-5 w: stipe elongate, tough, radicate, viscid, glabrous, fibrillose at the base, 
yellowish or cinereous, fistulose, 5-11 cm. long, 2-3 mm. thick. 
Type LocaLity: Carniola, Austria. 
HasitatT: On moss on logs. 
DISTRIBUTION: Eastern temperate North America; also in Europe. 
ILLUSTRATIONS: Atk. Stud. Am. Fungi f. 96; Cooke, Brit. Fungi pl. 208 (245) A; Sow. Engl. 
Fungi pl. 92. 
68. Prunulus fuliginosus Murrill, sp. nov. 
Pileus rather firm, conic to campanulate, umbonate, densely cespitose, 2-3 cm. broad; 
sutface smooth, glabrous, moist, hygrophanous, blackish when young, becoming fuliginous 
and at length paler with age, the disk remaining fuliginous, striate on the margin: lamellae 
adnexed, rather broad, subcrowded, grayish-white: spores ellipsoid, smooth, hyaline, 6—7 
X 3.5-4.5 uw: stipe cylindric, smooth, glabrous, paler than the pileus, hollow, whitish-mycelioid 
at the base, about 6 cm. long, 2-4 mm. thick. 
Type collected on a decayed balsam stump at Stockbridge, Massachusetts, September 3, 4, 
1911, W. A. Murrill & W. Gilman Thompson (herb. N. Y. Bot. Gard.). 
DIistRIBUTION: Known only from the type locality. 
69. Prunulus collybiiformis Murrill, Sp. Nov. 
Pileus thin, rather tough, convex to expanded and at length umbilicate or depressed, 
cespitose, 2-4 em. broad; surface dry, glabrous, cinereous, darker and rugose on the disk; 
margin entire, pallid, becoming slightly striate with age or on drying: lamellae adnate, plane, 
white, distant, rather narrow, interveined: spores ellipsoid, smooth, hyaline, 6-7 X 4-5 yp: 
stipe cylindric, somewhat enlarged at the base, hollow, smooth, pallid, subglabrous, whitish- 
mycelioid at the base, 3-5 cm. long, 2-5 mm. thick. 
Type collected on an oak stump at Port Jefferson, Long Island, New York, August 5, 1902, 
C. H. Peck & F. S. Earle 839 (herb. N. Y. Bot. Gard.). 
DistRiBuTION: Long Island, New York; Louisiana. 
70. Prunulus atroumbonatus (Peck) Murrill. 
Mycena atroumbonata Peck, Bull. N. Y. State Mus. 157: 29. 1912. 
Pileus submembranous, convex, becoming broadly convex or nearly plane, umbonate, 
gregarious, 1.2-3.2 cm. broad; surface glabrous, dark-watery-brown and shining when moist, 
grayish-brown with a black umbo when dry, striate-plicate from the margin half way to the 
umbo: lamellae thin, moderately crowded, widely sinuate at the inner extremity, decurrent 
with a tooth, white when young, whitish or livid-white when mature: spores oblong or ellip- 
soid, granular within, often 2-nucleate, 6-9 X 5-6: stipe slender, rather long, glabrous, 
hollow, radicate, colored like the pileus, with a white villosity at the base, 5-8 cm. long, 
1-2 mm. thick. 
Type Locality: North River, New York. 
Hasitat: On decaying coniferous trunks, especially of hemlock. 
DistRIBuTION: Maine and New York. 
