North American Flora: Agaricales, Agaricaceae (Vol. 10 ... - MykoWeb

P\RT 1, 1914] AGARICACEAE 13
30. Melanoleuca Memmingeri Murrill, sp. nov.
Pileus convex, regular, gregarious, 5-10 cm. broad; surface dry, subtomentose, white,
light-tan to brownish at the center, becoming glabrous in spots and retaining the im-
pression of finger marks, margin thin, entire; context fleshy, rather thin, with earthy
odor and taste, changing quickly to bright-yellow and finally to brown when cut or bruised;
lamellae sinuate, very close, rather narrow, fragile, apparently white or light-yellow when
fresh, becoming fulvous or bay with age; spores broadly ellipsoid, smooth, hyaline, granular,
6X5 p; stipe long, tapering upward, enlarged or subbulbous below, densely tomentose, dry,
white, becoming fulvous when bruised, solid, fragile, about 10 cm. long and 1-2 cm. thick,
being nearly twice that thickness at the base.
Type collected in leaf-mold in deciduous woods at Flat Rock, North Carolina, 1911, E. R. Mem-
minger.
DISTRIBUTION: Known only from the type locality.
31. Melanoleuca subdura (Banning & Peck) Murrill.
Tricholoma subdurum Banning & Peck; Peck, Ann. Rep. N. Y. State Mus. 44: 179. 1892.
Pileus hemispheric to expanded, about the size and shape of Tricholoma personatum;
surface white, becoming dark with age, margin undulate; context firm, tenaceous; lamellae
forking, adnexed, crowded, yellow; spores not examined; stipe stout, attenuate above, white,
enlarged at the base, solid, 6.5 cm. long.
TYPE LOCALITY : Druid Hill Park, Baltimore, Maryland.
HABITAT: In woods.
DISTRIBUTION: Known only from the type locality.
32. Melanoleuca edura (Banning & Peck) Murrill.
Tricholoma edurum Banning & Peck; Peck, Ann. Rep. N. Y. State Mus. 44: 180. 1892.
Pileus at first convex, obtuse, thick, fleshy, expanded with age, with a slight central de-
pression, gregarious, 10-12.5 cm. broad; surface undulating, hygrophanous, at first dingy-white
or alutaceous, darker at the center, cuticle thin, easily separable, margin at first involute,
expanding unequally, sometimes lobed; context mild, odor pleasant but powerful, resembling
that of the common mushroom ; lamellae white or cream-colored, adnexed, not crowded except
at the margin, easily separable from the context; spores subglobose, hyaline, 6-7.5 ¡i; stipe
white, firm, thickened at the base, tapering upward, sometimes nearly equal, at first solid
then stuffed, 7.5-10 cm. long.
TYPE LOCALITY: Baltimore, Maryland.
HABITAT: Among leaves in woods.
DISTRIBUTION: Known only from the type locality.
33. Melanoleuca fumosolutea (Peck) Murrill.
Agaricus {Tricholoma) fumosoluleus Peck, Ann. Rep. N. Y. State Mus. 27: 92. 1874.
Pileus fleshy, convex or nearly plane, sometimes gregarious, 5-7.5 cm. broad; surface
moist, glabrous, smoky-yellow; context white, tinged with yellow under the cuticle, taste
farinaceous; lamellae broad, close, rounded behind and deeply emarginate, white; spores
subglobose, 4.5-6 p; stipe stout, glabrous, hollow, white, 7.5-10 cm. long, 8-12 mm. thick.
' TYPE LOCALITY: Forestburgh, Sullivan County, New York.
HABITAT: Ground in woods.
DISTRIBUTION: New York and Maine.
34. Melanoleuca sublutea (Peck) Murrill.
Tricholoma subluleum Peck. Bull. N. Y. State Mus. 75: 21. 1904.
Pileus broadly campanulate becoming convex, umbonate, 5-10 cm. broad; surface ob-
scurely fibrillose, yellow; context white; lamellae close, emarginate, adnexed, white; spores
globose, 5-6 p; stipe equal or slightly tapering upward, solid, fibrillose, yellow, whitish at the
pointed base, white within, 7.5-10 cm. long, 8-16 mm. thick.
TYPE LOCALITY : Lake Pleasant, New York.
HABITAT: Under coniferous trees.
DISTRIBUTION: Known only from the type locality.
ILLUSTRATIONS: Bull. N. Y. State Mus. 75: pi. 0,f. 26-29.