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

PART 1, 1914] AGARICACEAE 55
striate near the margin; lamellae free, crowded, ventricose, white, subfulvous on drying; spores
subfusiform, appendiculate, smooth, hyaline, 12-13X6-7 M ; stipe slender, cylindric, slightly
enlarged at the base, pale-isabelline, sometimes becoming reddish-brown on drying, densely
fibrillose above, hollow, 2.5-4 cm. long, 1-2 mm. thick; veil very slight, evanescent, remaining
in shreds on margin and stipe.
Type collected on the ground in moist, mixed woods at Ocean Springs, Mississippi, September
5, 1904, Mrs. F. S. Earle 110.
DISTRIBUTION: Known only from the type locality.
49. Lepiota repanda (Clem.) Sacc. Syll. Fung. 14: 66. 1899.
Mastocephalus répandus Clem. Bot. Surv. Neb. 4: 18. 1896.
Pileus fleshy, convex-repand with distinct umbo, 1.3-1.8 cm. broad; surface incarnate-
ochraceous, covered with minute, crowded, granular scales; lamellae free, ventricose, white;
spores ellipsoid or globose, smooth, hyaline, 5-7X5 n\ stipe slender, equal, minutely floccose-
farinose, white above, pinkish-ochraceous below, hollow, 2-3 cm. long, 1-1.5 mm. thick;
annulus superior, white.
TYPE LOCALITY: Lincoln, Nebraska.
HABITAT: On rich earth.
DISTRIBUTION: Known only from the type locality.
50. Lepiota maculans Peck, Bull. Torrey Club 32: 77. 1905.
Pileus thin, convex, subumbonate, 1.5-2 cm. broad; surface dry, minutely and densely
squamulose, reddish-yellow, darker at the center; context changing to red when wounded;
lamellae free, subdistant, broad, white, gradually changing to red or pink; spores ellipsoid,
pointed at the ends, uninucleate, smooth, hyaline, 8•12X5•6 ¿u; stipe tough, equal, whitish
or yellowish, floccose or fibrillose, hollow, becoming reddish within when wounded, 5 cm. long,
2-3 mm. thick; annulus slight, evanescent.
TYPE LOCALITY: St. Louis, Missouri.
DISTRIBUTION : Known only from the type locality.
51. Lepiota amanitiformis Murrill, sp. nov.
Pileus convex to expanded, not bulbous, rather firm, rigid when dry, irregular at times
with age, gregarious, 3-4 cm. broad; surface dry, reddish-brown, slightly darker at the center,
at length cracking into minute scales, especially near the margin, and showing a white, un-
changing context between the scales, margin slightly paler, entire, not inflexed on drying;
lamellae crowded, white, unchanging, of medium breadth, free, somewhat ventricose, spores
oblong-ellipsoid, obliquely apiculate, smooth, hyaline, 7-8X4-5 ß; stipe very short and thick,
usually tapering upward from an abrupt, globose bulb at the base, white or tinged with reddish-
brown, solid, subglabrous to slightly fibrillose, 2-3 cm. long, 4-8 mm. thick, the bulb reaching
1 cm. ; annulus inferior, rather slight, white, usually connected with the bulb by fibrils.
Type collected in rich soil in the conservatories of the New York Botanical Garden, October 1,
1910, W. A. Murrill.
DISTRIBUTION: Known only from the type locality.
52. Lepiota abruptibulba Murrill, Mycologia 3: 88. 1911.
Pileus fleshy, rather thin, 6-7 cm. broad, hemispheric to subexpanded, at first umbonate,
at length obtuse; surface rich-reddish-brown, the cuticle breaking into minute, floccose-granu-
lar scales, not striate, darker on the umbo; lamellae white, free, crowded, unequal, rather
broad; spores subglobose to ovoid, smooth, hyaline, tinged with brown, 5-5.5 X4 n; stipe cylin-
dric, subglabrous, tinged with reddish-brown, hollow, 7 cm. long, 6 mm. thick, the base swollen
into an abrupt, flattened bulb; annulus large, persistent, superior, movable.
TYPE LOCALITY: Santiago de las Vegas, Cuba.
HABITAT: On the ground in banana fields and thickets.
DISTRIBUTION: Cuba.