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

PART 1, 1914] AGARICACEAE 25
greenish-yellow on the margin, which is frequently wavy and lobed; context white, taste
farinaceous; lamellae thin, close, rounded behind, adnexed, white, sometimes tinged with
yellow in front; spores minute, 5-6X4-5 /¿; stipe stout, solid, nearly equal, white, sometimes
tinged with yellow, 3-5 cm. long, 6-12 mm. thick.
TYPE LOCALITY: Mohawk Hill, Lewis County, New York.
HABITAT: Among mosses and fallen leaves under evergreen and deciduous trees on the margin
of a swamp.
DISTRIBUTION: Known only from the type locality.
ILLUSTRATIONS: Bull. N. Y. State Mus. 157: pi. 124, J. 1-5.
87. Melanoleuca sejuncta (Sow.) Murrill.
Agaricus sejunclus Sow. Engl. Fungi pi. 126. 1799.
Pileus fleshy, convex to expanded or depressed,¡usually umbonate, 2.5-7.5,cm. broad; surface
slightly viscid, streaked with innate brown or blackish fibrils, varying from whitish or yellowish
to olivaceous or smoky-brownish; context white, fragile, odor and taste somewhat mealy;
lamellae broad, uneven, subdistant, fragile, rounded behind or emarginate, white with yellow
reflections from a lemon-yellow layer between the lamellae; spores subglobose, smooth, hyaline,
5-6 ß ; stipe very variable in length and shape, solid, often irregular, white to yellowish or
olivaceous, 2.5-7.5 cm. long, 8-16 mm. thick.
TYPE LOCALITY: England.
HABITAT: On the ground in mixed woods.
DISTRIBUTION: Eastern United States; also in Europe.
ILLUSTRATIONS: SOW. Engl. Fungi pi. 126; Gill. Champ. Fr. */. 67 (J00); Atk. Stud. Am. Fungi
f. 89.
88. Melanoleuca tenuipes Murrill, Mycologia 5: 223. 1913.
Tricholoma tenuipes Murrill, Mycologia S: 223. 1913.
Pileus small, thin, convex, not expanding, becoming very slightly depressed at the center,
2 cm. broad; surface pallid, with a stramineous or avellaneous tint, smooth, glabrous, margin
entire, concolorous, incurved; lamellae sinuate-adnexed, distant, broad, several times inserted,
white, more or less notched on the edge; spores ellipsoid, smooth, hyaline, 5-7X3.5-4.5 /¿;
stipe slender, equal, solid, concolorous, white at the apex, smooth, dry, glabrous, 4 cm. long,
2 mm. thick.
TYPE LOCALITY: Seattle, Washington.
HABITAT: On the ground in woods.
DISTRIBUTION: Known only from the type locality.
89. Melanoleuca platyphylla Murrill, Mycologia 5: 219. 1913.
Tricholoma platyphyllum Murrill, Mycologia 5: 223. 1913.
Pileus convex to slightly depressed, rather thick, solitary, 3.5 cm. broad; surface smootjj,
subglabrous, white with a cremeous tint, margin entire, concolorous; lamellae white, subdistant,
ventricose, very broad; spores ellipsoid, smooth, hyaline, granular, 8.5X6AI; stipe tapering
upward from a swollen base, pure-white, smooth, glabrous, 8 cm. long, 5-9 mm. thick.
TYPE LOCALITY: Seattle, Washington.
HABITAT: In humus in woods.
DISTRIBUTION: Known only from the type locality.
90. Melanoleuca pinícola Murrill, Mycologia 5: 219. 1913.
Tricholoma pinícola Murrill, Mycologia S: 223. 1913.
Pileus rather thin, convex, umbonate, becoming nearly plane, gregarious, reaching 5 cm.
broad; surface smooth, glabrous, subshining, dry or slightly moist, milk-white, margin entire,
concolorous, strongly inflexed on drying; lamellae sinuate, not crowded, rather broad, plane or
slightly ventricose, white or slightly discolored; spores ellipsoid, smooth, hyaline, 5-6X3-4 ¡i;
stipe slightly tapering upward, fleshy, solid or stuffed, milk-white, smooth, glabrous, whitish-
mycelioid at the base, 5-7 cm. long, 4-9 mm. thick.
TYPE LOCALITY: Tacoma, Washington.
HABITAT: On much decayed coniferous wood.
DISTRIBUTION: Known only from the type locality.