Melanoleuca kauffmanii Murrill 1914

Melanoleuca kauffmanii Murrill, sp. nov
Pileus small, thin, convex to nearly plane, cespitose, 2-5 cm. broad ; surface smooth, subglabrous, minutely floccose on the disk, pale-brownish-cinereous with a tinge of drab, darker at the center; margin thin, regular, concolorous, incurved when young or on drying; context whitish, drying easily, taste mild ; lamellae somewhat decurrent, at length emarginate, plane, very crowded and very narrow, pallid to drab-colored, scarcely changing when bruised, isabelline in dried specimens; spores ellipsoid, smooth, hyaline, 5-6X2-3^; stipe rather slender, curved and attenuate above, nbrillose, whitish, tinged like the pileus, solid, 4-6 cm. long, 4-6
mm. thick.
Type collected in soil mixed with leaf -mold at Whitmore, Michigan, September 14, 1907, C. H.
Kauffman.
Distribution: Known only from the type locality.