Entoloma tortipes Murrill 1917

Entoloma tortipes Murrill, sp. nov
PUeus convex to subexpanded, with a small, conspicuous, conic umbo, rather thin and fragile, reaching 3 cm. broad; surface smooth, with a satiny gloss, rosy-isabellme, margin concolorous, entire, sometimes splitting with age; context very thin, pallid; lamellae sinuate, of medium breadth, subcrowded, slightly ventricose and romided behind, entire on the edges, pallid to rose-colored; spores ellipsoid, angular, uniguttulate, usually apiculate, rose-colored, 9-11 X 5-7 ju; stipe decidedly tapering upward, conspicuously twisted, smooth, glabrous, polished, white or pale-avellaneous, solid, 6-7 cm. long, 3-6 mm. thick.
Type collected on a much decayed, deciduous stump by the Bronx River in the New York Botanical Garden. August 2, 1915, W. A. Murrill (herb. N. Y. Bot. Card.). Distribution: Known only from the type locality.