Part 5, 1916] AGARICACEAE 357 
12. Gymnopus flavescens Murrill, sp. nov. 
Pileus fleshy, convex to expanded and at length depressed, somewhat eccentric or irregular 
at times, gregarious, 1-3 cm. broad; surface smooth, glabrous, hygrophanous, white or yellow- 
ish, becoming distinctly yellow on drying, margin concolorous, not striate, incurved when 
young: lamellae adnate, becoming sinuate with age, broad, crowded, white to yellowish: 
spores broadly ellipsoid, smooth, hyaline, 6-7 X 5-6 »: stipe subequal, cylindric, whitish or 
yellowish, densely pruinose, floccose at the base, solid, 2-3 em. long, 2-3 mm. thick, 
Type collected on decayed wood in City Park, New Orleans, Louisiana, September 6, 1908, 
F. S. Earle 68 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: City Park, New Orleans, Louisiana. 
13. Gymnopus farinaceus Murrill, sp. nov. 
Pileus convex, not fully expanding, umbilicate or depressed, gregarious or cespitose, 
reaching 3 cm. broad; surface smooth, glabrous, hygrophanous, dull-whitish or pale-isabelline, 
pruinose at the center, margin entire, concolorous, inflexed when young: context dull-whitish, 
with an exceedingly strong farinaceous odor; lamellae adnate, crowded, dull-grayish-white 
to brownish-discolored: spores ellipsoid, smooth, hyaline, 6-7 X 4-5 wu: stipe rather short, 
more or less compressed, tough, smooth, dry, glabrous, fumosous, 3 cm. long, 1-5 mm. thick. 
Type collected in mossy, shaded earth about stumps and rocks in the New York Botanical 
Garden, October 5, 1911, W. A. Murrill (herb. N. Y. Bot. Gard.). 
DistrRisuTION: Known only from the type locality. 
14. Gymnopus sinuatus Murrill, sp. nov. 
Pileus rather thick, convex to plane, not umbonate, solitary, 3-3.5 cm. broad; surface 
moist but not viscid, smooth, glabrous, estriate, dirty-cream-colored, margin entire, con- 
colorous, inflexed when young: lamellae very broad, ventricose, distant, sinuate, whitish: 
spores ovoid, smooth, hyaline, granular, 8-10 X 6-7 w: stipe erect, cylindric, equal, smooth, 
glabrous, cream-colored, hollow, whitish-tomentose at the base, 6 cm. long, about 7 mm. thick. 
Type collected’ n humus under balsam trees at Lake Placid, Adirondack Mountains, New York, 
October 3-14, 1912, W. A. & Edna L. Murrill 558 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
15. Gymnopus strictipes (Peck) Murrill. 
Collybia strictipes Peck, Ann. Rep. N. Y. State Mus. 41:62. 1888. 
Pileus thin, broadly convex or nearly plane, cespitose, 2.5-6 cm. broad; surface glabrous, 
sometimes slightly rugose on the disk, moist but scarcely hygrophanous, whitish or pale- 
yellow, paler when dry, often more deeply colored on the disk: lamellae thin, close, adnexed or 
almost free, white: spores ovoid or subellipsoid, pointed or subacuminate at one end, 6-7.5 
X 4p° stipe glabrous, slightly mealy or pruinose at the apex, white, often with a dense, white, 
mycelioid tomentum at the base, equal, straight, hollow, 3-6 cm. long, 4-6 mm. thick. 
Tyre LocaLity: Catskill Mountains, New York. 
‘Hasrrat: Among leaves or on decayed wood in woods. 
DIstRiBUTION: New England to the District of Columbia and west to Ohio. 
16. Gymnopus virginianus Murrill, sp. nov. 
Pileus convex to nearly plane, not umbonate, solitary or gregarious, 2.5-4 cm. broad; 
-surface dry, smooth, glabrous, not shining, pale-isabelline, margin concolorous, estriate, inflexed 
when young: context white, without characteristic odor, eaten by snails; lamellae sinuate- 
adnexed, narrow, very crowded, white, plane: spores ellipsoid, smooth, hyaline, 5-6 X 3-4 p: 
stipe slightly tapering upward, smooth, glabrous at the apex, finely whitish-tomentose at the 
base, pale-reddish-brown, hollow, 5-6 cm. long, 2~4 mm. thick. 
Type collected in moist sandy soil in chestnut woods at Falls Church, Virginia, January 8, 1915, 
W.A. Murrill (herb. N. Y. Bot. Gard.). 
Hasrtat: In sandy soil or among leaves in chestnut or pine woods. 
DIstRiBution: Vicinity of Falls Church, Virginia. 
