Part 2, 1917] AGARICACEAE 117 
18. Entoloma pallidibrunneum Murrill, sp. nov. 
Pileus thin, convex to expanded, umbilicate, gregarious, 2-3 em. broad; surface sub- 
floccose, hygrophanous, pale-brown, margin entire, concolorous; lamellae adnexed, rather 
crowded, subventricose, pallid; spores broadly ellipsoid, irregular, angular, rose-colored, 9-11 4; 
stipe slender, equal, hollow, pallid, farinose at the apex, whitish-mycelioid at the base, 4—6 cm. 
jong, 3-4 mm. thick. 
Type collected among humus in woods at West Park, New Vork, July 30, 1903, F. S. Earle 
1583 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
19. Entoloma modestum Peck, Bull. Torrey Club 34: 347. 1907. 
Pileus thin, campanulate or convex, obtuse, 1.5-2.5 em. broad; surface glabrous, hygro- 
phanous, dark-smoky-brown and striatulate when moist, isabelline or pale-grayish-brown 
when dry; lamellae rather broad, subdistant, adnate, at first pallid, becoming flesh-colored; 
spores angular, uninucleate, obliquely apictlate at one end, 10-14 X 8-94; stipe slender, 
equal, hollow, glabrous, concolorous, 2.5-4 em. long, 2~4 mm. thick. 
TYPE LOCALITY: Stow, Massachusetts. 
Hapirat: In damp, shaded places. 
DISTRIBUTION: New York and Massachusetts. 
20. Entoloma diminutivum Peck, Bull. Torrey Club 34: 99. 1907. 
Pileus thin, fragile, convex, becoming nearly plane, umbonate, 1.3-3 cm. broad; surface 
hygrophanous, chestnut-brown or blackish and striatulate on the margin when young or 
moist, becoming paler and shining when the moisture has escaped, the small umbo darker 
than the rest of the pileus; context having a farinaceous odor; lamellae thin, narrow, sub- 
crowded, slightly adnexed, subventricose, white, becoming pink; spores angular, uninucleate, 
10-12 X 6-8 uw; stipe fragile, equal or slightly tapering upward, glabrous, shining, white or 
whitish, 1.3-3 em. long, 2 mm. thick. 
Type Locatity: Stow, Massachusetts. 
Hasrrat: On damp, black soil under trees. : 
DISTRIBUTION: Known only from the type locality. 
21. Entoloma fuliginosum Murrill, sp. nov. 
Pileus small, thin, convex to plane, umbonate, irregular in outline, solitary, 2 cm. broad; 
surface smooth, glabrous, shining, striate, uniformly fuliginous, the cuticle cracking radially 
with age, margin concolorous, undulate or folded; lamellae slightly sinuate, broad, ventricose, 
distant, entire on the edges, pallid to salmon-colored; spores globose, slightly angular, rose- 
colored, 6-8 4; stipe short, equal, smooth, glabrous, subconcolorous, not shining, whitish- 
mycelioid below, 3 cm. long, 2-3 mm. thick. 
Type collected among humus under balsam fir trees at Lake Placid, Adirondack Mountains, 
New York, October 3-14, 1912, W. A. & Edna L, Murrill 967 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
22, Entoloma scabrinellum (Peck) Sacc. Syll. Fung. 5 : 693. 1887. 
Agaricus scabrinellus Peck, Ann. Rep. N. Y. State Mus. 33: 19. 1883. 
Pileus thin, convex or nearly plane, papillate or with a small umbo, 1.2-2 cm. broad; 
surface minutely scabrous, dark-brown, margin thin, incurved, slightly surpassing the lamellae; 
lamellae broad, crowded, rounded behind, ventricose, adnexed, floccose on the edges, whitish, 
becoming pink; spores irregular, wninucleate, 7.5-10 X 5-7.5 wu; stipe equal, fibrillose, pruinose 
at the apex, paler than the pileus, about 2.5 cm. long and 2 mm. thick. 
Typz LOCALITY: Wading River, Suffolk County, New York. 
Hasirat: In shaded, gravelly soil. 
DISTRIBUTION: New York and Ohio. 
23. Entoloma fibrillosum Murrill, sp. nov. 
Pileus small, thin, regular, umbonate, solitary, 2-3 cm. broad; surface dry, smooth, not 
striate, uniformly fuliginous when young, becoming umbrinous with age except on the disk, 
