Entoloma subsinuatum Murrill 1917

Entoloma subsinuatum Murrill, sp. nov
Pileus thick, fleshy, convex to subexpanded, umbonate, cespitose, reaching 13 cm. broad; surface slightly viscid when moist, smooth, white with a yellowish tint, margin entire, white, not striate; context thick, white; lamellae emarginate, rounded behind, broad, rather crowded, white to salmon-colored; spores globose, decidedly angular, apiculate, rose-colored, copious, II', stipe smooth, glabrous or slightiy fibrillose, shining, concolorous, solid or stuffed, equal, except at the bulbous base, white within, 15 cm. long, 3 cm. thick.
Type collected in leaf-mold in rich woods at Bar Harbor, Maine, August 17, 1901, V. S. White 128 (herb. N. Y. Bot. Card.).
Distribution: Vicinity of Bar Harbor, Maine.