Melanoleuca avellaneifolia Murrill 1913

Melanoleuca avellaneifolia Murrill, Mycologia 5 : 215. 1913
Tricholoma avellaneifolium Murrill, Mycologia 5: 223. 1913.
Pileus fleshy, rather thick, convex to expanded, gibbous, subcespitose, reaching 9 cm. broad; surface polished, smooth, somewhat viscid, dull-blackish-fuliginous, margin entire, concolorous, inflexed on drying; lamellae sinuate, ventricose, several times inserted, not crowded, paleavellaneous; spores subglobose, smooth, hyaline, granular, about 5,5-6.5 m; stipe equal, fleshy, solid, smooth, glabrous, purewhite, about 8 cm. long, 1.5 cm. thick.
Type locality: Mill City, Oregon.
Habitat: In soil in woods.
Distribution: Known only from the type locality.