Collybia pinicola (Murrill) Singer 1942

Melanoleuca pinicola Murrill, Mycologia 5: 219. 1913
Tricholoma pinicola Murrill, Mycologia 5: 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 fi; stipe slightly tapering upward, fleshy, solid or stuffed, milk-white, smooth, glabrous, whitishmycelioid 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.