Leptoniella acericola Murrill 1917

Leptoniella acericola Murrill, sp. nov
Pileus convex to plane, slightly umbilicate with age, not umbonate, rather thick and firm, gregarious, reaching 5 cm. broad; surface dry, smooth, not striate, rosy-isabelline with a lilac tint, finely marked with darker fascicles of hairs, the older plants more isabelline with fuliginous disk, margin entire, concolorous, incurved when young ; context with slightly farinaceous taste; lamellae adnate, ventricose, subdistant, purewhite to dull-rosy-isabelline, entire and concolorous on the edges; spores ovoid, undulate or very slightly angular in outline, usually apiculate, uniguttulate, rose-colored, 9 X 6ju; stipe equal in mature specimens, rather short and thick, dry, densely squamulose, bright-steel-blue, fading to subumbrinous with age, 3-4 cm. long, 3-4 mm. thick.
Type collected on the end of a dead sugar maple log in the woods at Lake Placid, Adirondack
Mountains, New York, July 17-29, 1912, W. A. b' Edna L. Murrill 210 (herb. N. Y. Bot. Gard.). Distribution: New York.