Marasmius rubrophyllus Penn. 1915

Marasmius rubrophyllus Pennington, sp. nov
Pileus subfleshy, tough, broadly convex to nearly plane, often slightly depressed, gregarious, 1-4 cm. broad; surface dry, smooth, reddish-brown to dark-alutaceous, margin even: lamellae adnexed or adnate, moderately close, narrow, reddish, becoming reddish-brown in dried plants: spores 7 X 3.5 /it: stipe firm, even, short, reddish-brown, uniformly covered with a white down or pruinose coat, 2-3 cm. long, 1-2.5 mm. thick.
F
Type collected upon bark at the base of a white oak tree in the forest near Ann Arbor, Michigan, September, 1907, L. H. Pennington (herb. Pennington).
Habitat: On bark, dead leaves, and dead twigs in woods. Distribution: Temperate North America east of the Mississippi River.