A large, stocky Psathyrella of hardwood logs and stumps, with a dark reddish brown, finely wrinkled to almost net-like cap that fades to tan and carries whitish veil remnants at the margin. The spore print is purplish brown to purplish black. DNA work places it in Typhrasa, and its correct name is unsettled.
Edibility is not established. Some regional sources describe it as edible but advise against eating it because it is hard to identify; not recommended. Brown-spored mushrooms clustered on wood include the deadly Galerina marginata (amatoxins), which has a rusty brown spore print.
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Habitat
Saprobic on hardwood deadwood, usually logs and stumps, also hardwood mulch and debris; alone, scattered, gregarious or in clusters. Summer and fall.
Distribution
Widely distributed in eastern North America, but apparently rare west of the Rocky Mountains; uncommon in Minnesota at the western edge of its range.
Characteristics
Cap: 3-10 cm, convex to flat, finely corrugated and wrinkled, often finely fibrillose when young; dark reddish brown fading to tan; margin with whitish partial veil remnants. Gills: attached, close, pale brownish becoming dark brown. Stem: 6-10 cm long, 0.5-1.5 cm thick, nearly equal, whitish, hollow, smooth or finely silky; usually no true ring; abundant white basal mycelium. Flesh: thin, fragile, watery brownish to whitish. Odor and taste: not distinctive. Spore print: purplish brown to purplish black. Spores: 6.5-9 x 4.5-5.5 um, ellipsoid, smooth (MushroomExpert).
