Part 2, 1917] AGARICACEAE 81 
1. Eccilia nivea Peck, Ann. Rep. N. Y. State Mus. 49: 18. 1897. 
Eccilia subacus Peck, Bull. Torrey Club 34: 100. 1907. 
Pileus thin, submembranous, hemispheric or very convex, slightly umbilicate, 1-2.5 cm. 
broad; surface smooth, finely appressed-fibrillose, white; lamellae thin, rather broad, distant, 
arcuate, short-decurrent, white, becoming salmon-colored; spores ellipsoid, angular, tni- 
guttulate, rose-colored, 10-12 X 6-8 y; stipe slender, fragile, equal or slightly tapering upward, 
glabrous, stuffed or hollow, white, 2~5 cm. long, 1-2 mm. thick. 
TYPE LocaLity: Selkirk, New York. 
Hapirat: On the ground ia woods or thickets. 
DISTRIBUTION: New England and New York. 
2. Eccilia roseoalbocitrina Atk. Ann. Myc. 7: 369. 1909. 
Pileus strongly convex when young, slightly depressed at the center, becoming expanded 
with the margin strongly upturned with age, thin, 1-2.5 cm. broad; surface minutely silky 
with loose, delicate threads, smooth, entirely white, sometimes faintly tinged with yellow at 
the center; lamellae at first white, then pale-rose-colored or becoming buff on drying, adnate 
or decurrent, subdistant, slightly ventricose; spores elongate, angular, pale-flesh-colored, 
9-11 X 6-9 yu; stipe smooth, hollow, cartilaginous, covered with «a delicate, white, velvety 
tomentum when young, the apex mealy, with tufts of clavate cells when old, 4-6 cm. long, 2-3.5 
mm. thick. 
TYPE Locality: Cayuga Lake, Ithaca, New York. 
Hasitat: On the ground. 
Distrisution: Known only from the type locality. 
3. Eccilia cinericola Peck, Bull. Torrey Club 34: 347. 1907. 
Pileus thin, fragile, broadly convex, becoming expanded and broadly umbilicate or cen- 
trally depressed, 1.2-2.5 cm. broad; surface glabrous, slightly scabrous, white tinged with 
yellow, becoming cream-colored with age; lamellae thick, distant, broad, adnate or slightly 
decurrent, sometimes slightly sinuate, white, becoming pink, dusted with the spores; spores 
subglobose, angular, 10-12 X 8-10 yp; stipe subcartilaginous, fragile, hollow, slightly enlarged 
at the apex, white at first, becoming colored like the pileus, 2-2.5 em. long, 2 mm. thick. 
TYPE LOCALITY: Boston, Massachusetts. 
Hasrrat: Gravelly ground among grasses, especially where coal ashes have been lying for a 
long time. 
Distr1puTIoN: Known only from the type locality. 
4. Eccilia flavida Peck, Bull. Torrey Club 36: 153. 1909. 
Pileus thin, convex, umbilicate, 2-2.5 cm. broad; surface glabrous, pale-yellow, obscurely 
striate when dry; lamellae thin, somewhat crowded, decurrent; spores subglobose, angular, 
8-12 X 6-8 uw; stipe slender, glabrous, hollow, concolorous or a little paler, commonly with 
white mycelium at the base, 2.5-3.5 cm. long, 1.5-2 mm. thick. 
TyPE LOCALITY: Stow, Massachusetts. 
DISTRIBUTION: Vicinity of Stow, Massachusetts. 
5. Eccilia angustifolia Murrill, sp. nov. 
Pileus thin, regular, convex-umbilicate, not expanding, solitary, 1.5-2 cm. broad; surface 
glabrous, uniformly tan-colored, pale-chestnut in dried specimen, striate, margin entire, 
concolorous; lamellae short-decurrent, subdistant, narrow, several times inserted, white to 
salmon-colored, entire and concolorous on the edges; spores broadly ellipsoid, angular, obliquely 
apiculate, rose-colored, 10.5 X 9 nu; stipe long, slender, eqifal, smooth, glabrous, solid, pale- 
fuliginous, 4-5 cm. long, reaching 2 mm. thick. 
Type collected on the ground in moss at West Park, New York, August 9, 1903, F. S. Earle 
1832 (herb. N. Y. Bot. Gard.). : 
DISTRIBUTION: Known only from the type locality. 
