360 NORTH AMERICAN FLORA {VOLUME 9 
brownish-discolored on the immediate margin: lamellae adnexed, crowded, narrow, more or 
less flavous: spores ellipsoid, smooth, hyaline, 6-7 X 3-4 u: stipe equal, rather short, hollow, 
whitish, subglabrous, radicate, 5-7 cm. long, 4-6 mm. thick. 
Type collected on dead coniferous wood at Lake Placid, Adirondack Mountains, New York, 
July 17-29, 1912, W. A. & Edna L. Murrill 207 (berb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
26. Gymnopus rugosoceps (Atk.) Murrill. 
Collybia rugosoceps Atk. Jour. Myc. 8: 112. 1902. 
Pileus campanulate, 5 cm. broad; surface dull-smoky-yellow, darker at the center, strongly 
and deeply rugose: context white, thin, the odor and taste not marked; lamellae adnate, 
distant, broad, white: spores obovoid to stbellipsoid, smooth, white, 8-11 X 7-9: stipe 
furrowed, ventricose, with a short root, white, dusky at the base, spongy within, thin, hollow, 
with a cartilaginous rind, 8 cm. long, 1.5 cm. thick. 
Type Locauity: Ithaca, New York. 
HagrTat: On the ground in woods. 
DisTRIBUTION: New York. 
27. Gymnopus agricola Murrill, sp. nov. 
Pileus small, rather tough, convex, not fully expanding, not umbonate, gregarious to 
slightly cespitose, 1-2 cm. broad; surface dry, smooth, glabrous, fulvous when moist, paler 
when dry, margin entire, not striate, stramineous, inflexed when young: context thin, white, 
with nutty flavor; lamellae adnexed or sinuate, subdistant, of medium breadth, watery-white: 
spores pip-shaped, smooth, hyaline, 5-6 X 3-4: stipe slender, tapering downward, pale- 
brownish above, reddish-brown below, hollow or stuffed, cartilaginous, 2-3 cm. long, 1.5-2 
mm. thick. 
Type collected in soil among grass in an open field in the New York Botanical Garden, May 23, 
1910, W..A. Murrill (herb. N. Y. Bot. Gard.). 
Hasirat: Among grass or weeds in fields. 
DISTRIBUTION: Southern New York and New Jersey. 
ILLUSTRATION: Mycologia 3: pl. 40, f. 8 (as Collybidium dryophilum). 
, 28. Gymnopus lentinoides (Peck) Murrill. 
Agaricus (Collybia) lentinoides Peck, Ann. Rep. N. Y. State Mus. 32: 27. 1880. 
Pileus thin, convex or nearly plane, obtuse, 1.2-2.5 cm. broad; surface glabrous, hygroph- 
anous, reddish-brown or yellowish-red when moist, reddish-tan-colored or pale-red when 
dry: lamellae narrow, close, adnexed, serrate on the edges, white: spores ellipsoid, 6-7.5 X 44: 
stipe equal, even or slightly striate, slightly pruinose at the apex, white or whitish, rarely 
reddish-yellow, hollow, 3.5—-5 cm. long, about 2 mm. thick. 
TYPE Locatity: Montgomery County, New York. 
HasitaT: On damp ground in a wooded,swamp. 
DISTRIBUTION: Massachusetts and New York. 
29. Gymnopus lachnophyllus (Berk.) Murrill. 
?Agaricus cohaerens Pers. Syn. Fung. 306. 1801. Not A. cokaevens Lasch, 
Agaricus (Collybia) lachnophyllus Berk. Lond. Jour. Bot. 6: 312. 1847, 
Agaricus (Collybia) spinuliferus Peck, Ann. Rep. N. Y. State Mus. 24: 62. 1872. 
Collybia lachnophyllus Sacc. Syll. Fung. 5: 203. 1887. 
Pileus fleshy, thin, convex or nearly plane, cespitose, 1.5-2.5 cm. broad; surface glabrous, 
hygrophanous, reddish-tan-colored tinged with pink when moist, paler when dry, margin slightly 
sttiatulate: lamellae narrow, close, rounded behind and free, pale-cinnamon-colored, spinulifer- 
ous: spores ellipsoid or nearly so, 6-7.5 X 4 u: stipe slender, tough, glabrous, hollow, shining 
and purplish-brown, often paler or whitish and subvelvety at the apex, especially in young 
plants, with a whitish mycelioid tomentum at the base, 4-6 cm. long, about 2 mm. thick. 
TYPE LOCALITY: Waynesville, Ohio. 
Hapsitat: On rotten pieces of wood or on the ground among dead leaves in woods. 
_ DistRIBUTION: Connecticut, New York, New Jersey, Pennsylvania, Virginia, North Carolina, 
Ohio, and Michigan. 7 
