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

20 NORTH AMERICAN FLORA [VÖLUMB 10
soid, smooth, hyaline, 5-7X2-3 /¿; stipe short and thick, cylindric above, bulbous at the base,
smooth, glabrous, dull-white, spongy within, brittle, 3-5 cm. long, 1-2 cm. thick.
Type collected in sandy soil in mixed woods near Auburn, Alabama, January 1, 1901, Mrs. F. S.
Earle.
HABITAT: In sandy soil in oak woods or mixed woods.
DISTRIBUTION: Alabama.
64. Melanoleuca phaeopodia (Bull. & Vent.) Murrill.
Agaricus phaeopodius Bull. & Vent. Champ. Fr. 1: 622. 1809.
Collybia phaeopodia Quel. Ench. Fung. 28. 1886.
Pileus depressed, gregarious, 5-9 cm. broad; surface dry, glabrous, fumoso-avellaneous,
margin often irregular; context white, brittle, having a sweet, nutty taste, but no odor;
lamellae sinuate, narrow, crowded, uneven, brittle, white to pallid; spores ellipsoid, smooth,
hyaline, 7-9X5-6.5 it; stipe subconcolorous, dry, glabrous, fleshy, stuffed or hollow, larger at
the base, 4 cm. long, 0.75-2 cm. thick.
TYPE LOCALITY: France.
HABITAT: On the ground among weeds or in woods.
DISTRIBUTION: Northeastern United States; also in Europe.
ILLUSTRATION: Bull. Herb. Fr. pi. 532, f. 2.
65. Melanoleuca Volkertii Murrill, sp. nov.
Pileus convex to plane, at length depressed, somewhat irregular, thin, fragile, gregarious,
reaching 7 cm. broad; surface smooth, glabrous, dry, avellaneous at the center, fading out to
nearly white at the margin, the cuticle sometimes splitting radially; margin thin, entire or
lobed, at first incurved, at length expanded; lamellae sinuate, rather crowded, of medium
breadth, fragile, whitish, becoming subfulvous on drying; spores ellipsoid, smooth, hyaline,
4-6 X 3-4 p ; stipe usually short and thick, equal, smooth, glabrous, pallid or pale-avellaneous,
spongy-stuffed, 3-4 cm. long, 1-2.5 cm. thick.
Type collected on the ground in woods east of the New York Botanical Garden, New York
City, October 8, 1911, W. A. Murrill &• E. C. Volkert.
DISTRIBUTION: Known only from the type locality.
66. Melanoleuca piperata (Peck) Murrill.
Tricholoma piperatum Peck, Bull. Torrey Club 26: 63. 1899.
Pileus rather thin, firm, dry, convex, obtuse or subumbonate, 4-7 cm. broad; surface
virgate with innate brownish fibrils, varying in color from grayish-brown to blackish-brown,
sometimes with greenish or yellowish tints, often a little darker in the center; context
white or whitish, taste acrid; lamellae broad, close, rounded behind, adnexed, whitish or
yellowish; spores ellipsoid, 6-7X5 ¡u; stipe generally short, equal, solid, silky, slightly mealy or
pruinose at the top, white or slightly tinged with yellow, 5-7 cm. long, 6-12 mm. thick.
TYPE LOCALITY: Massachusetts.
HABITAT: On the ground in woods.
DISTRIBUTION: Massachusetts, New York, and Pennsylvania.
67. Melanoleuca semivestita (Peck) Murrill.
Tricholoma semiveslitum Peck, Bull. Torrey Club 22: 485. 1895.
Pileus thin, expanded, the center depressed or subumbilicate, 12-24 mm. broad; surface
dry, blackish-brown, glabrous, margin deflexed or involute; lamellae emarginate, close, whitish
tinged with blue, edges often dentate; spores broadly ellipsoid or subglobose, uninucleate, 4•5
X4M; stipe short, slightly thickened at the base, brown, tomentose below, solid, 1.5-2.5 cm.
long, 4-6 mm. thick.
TYPE LOCALITY: Rooks County, Kansas.
HABITAT: On old grass roots in a sandy prairie pasture.
DISTRIBUTION: Kansas.
68. Melanoleuca praecox Murrill, sp. nov.
Pileus becoming plane and at length depressed, solitary, 4 cm. broad; surface dry, avel-
laneous, shining, minutely imbricate, margin irregular or somewhat lobed; context whitish,
mild, pleasant to the taste; lamellae sinuate, broad, nearly plane, rather crowded, several