Entoloma subcostatum G. F. Atk. 1906

Entoloma subcostatum Atk. Jour. Myc. 12: 236. 1906
Pileus convex to expanded, plane or subgibbous, not umbonate, irregular, repand, gregarious or cespitose, 4-8 cm. broad; surface subviscid when moist, often subvirgate with darker lines, dark-gray to hair-brown or olive-brown, margin incurved; context white, rather thin, very thin toward the margin; the odor somewhat of old meal or nutty, not pleasant, the taste similar; lamellae light-salmon-colored, becoming dull, broad, narrowed toward the margin of the pileus, deeply sinuate, usually rounded, adnexed, easily becoming free, the edges usually plane, sometimes interveined, sometimes costate; spores subglobose, pale -rose-colored, angular, 8-10 M in diameter; stipe concolorous but paler, 6-8 cm. long, 1-1.5 cm. thick.
Type I.OCAI.ITY: Columbus. Ohio.
Habitat: On grtissy ground.
Distribution: Known only from the type locality.