88 NORTH AMERICAN FLORA [VoLumME 10 
or blackish-brown on drying, margin striatulate, at first incurved, sometimes becoming wavy 
or split when old; context white, the taste farinaceous; lamellae sinuate, adnexed, crowded, 
unequal, ventricose, white, becoming pink; spores angular, flesh-colored, uninucleate, 10-12.5 
X 7.5-8.5 4; stipe long, slender, straight or flexnous,'equal or slightly narrowed upward, priinose 
at the apex, glabrous and shining at the base, subcartilaginous, stuffed or hollow, white, be- 
coming blackish or blackish-brown on drying, with white mycelium at the base, 2.5-5 cm. 
long, 1-2 mm. thick. 
TyYPx LocaLity: Falmouth, Massachusetts. 
Hasrrat: In bushy places. . 
DIstTRIBUTION: Known only from the type locality. 
6. Leptoniella acericola Murrill, sp. nov. 
Pileus convex to plane, slightly umbilicate with age, not umbonate, rather thick and 
firm, gregarious, reaching 5 cm. broad; surface dry, smooth, not striate, rosy-isabelline with a 
lilac tint, finely marked with darker fascicles of hairs, the older plants more isabelline with 
fuliginous disk, margin entire, concolorous, incurved when young; context with slightly farina- 
ceous taste; lamellae adnate, ventricose, subdistant, pure-white to dull-rosy-isabelline, entire 
and concolorous on the edges; spores ovoid, undulate or very slightly angular in outline, usually 
apiculate, uniguttulate, rose-colored, 9 X 64; stipe equal in mature specimens, rather short 
and thick, dry, densely squamulose, bright-steel-blue, fading to subumbrinous with age, 3-4 
em. long, 3-4 mm. thick. : 
Type collected on the end of a dead sugar maple log in the woods at Lake Placid, Adirondack 
Mountains, New York, July 17-29, 1912, W. A. & Edna L. Murrill 210 (herb. N. Y. Bot. Gard.). 
DIstRIBUTION: New York. 
7. Leptoniella Whiteae Murrill, sp. nov. 
Pileus convex, depressed at the center, solitary, 3 cm. broad; surface hygrophanous, 
yellowish-brown, conspicuously striate nearly to the center, squamulose, margin concolorous, 
uneven; context with mild taste; lamellae sinuate, with a slight decurrent tooth, inserted, 
broad, ventricose, subcrowded, whitish to salmon-colored, concolorous on the edges; spores 
broadly ellipsoid, angular, usually obliquely apiculate, rose-colored, 12-14 X 8-10 n; stipe 
equal, rather slender, glabrous, shining, yellowish, cartilaginous, hollow, whitish-mycelioid 
at the base, 5-6 cm. long, 2-3 mm. thick. 
Type collected on much decayed wood in leaf-mold at Bar Harbor, Maine, August 12, 1901, 
V. S. White 99 (herb. N. Y. Bot. Gard.). 
DIsTRiBuTion: Known only from the type locality. 
8. Leptoniella rosea (Longyear) Murrill. 
Leptonia rosea Longyear, Trans. Mich. Acad. Sci. 3: 59. 1902. 
Pileus thin, convex, obtuse and depressed on the disk, 3-3.5 cm. broad; surface roseous, 
with brown fibrils, darker on the disk, margin not striate; lamellae adnate with a slight tooth, 
not crowded, 6 mm. broad, whitish, becoming flesh-colored; spores angular, flesh-colored, 
10-12 X 7-8; stipe slender, smooth, roseous, cartilaginous, stuffed, slightly thickened at 
the apex and base, whitish-mycelioid at the base, 7-8 cm. long. 
TYPE LOCALITY: Kent County, Michigan. 
Hasrrat: In burnt soil on a sandy hillside. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATION: Trans. Mich, Acad. Sci. 3: f. 5. 
9. Leptoniella roseibrunnea Murrill, sp. nov. 
Pileus rather thick, convex-umbilicate, solitary, 1 em. broad; surface moist, hygrophanous, 
uniformly rosy-brown, striate, margin entire, concolorous ; lamellae adnate, very broad, 
distant, inserted, entire on the edges, salmon-colored; spores ellipsoid, angular, obliquely 
apiculate, uniguttulate, rose-colored, 7-8.5 X 5 4; stipe very slender, equal, smooth, glabrous, 
brown, about 4 cm. long and 1 mm. thick. 
Type collected on the ground in hemlock woods in the New York Botani J 
28, 1911, W. A. Murrill (herb. N. Y. Bot. Gard), hee een aneaaet 
DistRisution: Known only from the type locality. 
