Clitopilus leptonia Peck 1913

Pleuropus leptonia (Peck) Murrill
ClUopilus Leptonia Peck, Bull. N. Y. State Mus. 167: 39. 1913.
Pileus thin, conic or convex, umbilicate, gregarious, 2.5-3.5 cm, broad; surface hygrophanous, squamulose on and near the broad umbilicus, chestnut-colored and striatidate on the margin when moist, black on the umbilicus; lamellae broad, distant, white, becoming pink, broadly sinuate-adnate or decurrent, sometimes transversely venose; spores subglobose, angular, uninucleate, 10-12 X 8-10 juj stipe slender, equal or slightly narrowed upward, fibrillose, straight, stuffed or hollow, brown, becoming darker with age, with a copious, white, mycelioid tomentum at the base, 5-8 cm. long, 1-3 mm. thick.
Type locality: Stow, Massachusetts, Habitat: Low ground under trees. Distribution: Known only from the type locality.