Collybia acervata (Fr.) Kummer Cap 1-5cm across, convex with an incurved margin at first, becoming flatter; reddish brown becoming paler, more pinkish buff to whitish tan on drying; moist to dry, smooth. Gills adnate to free, close, narrow; whitish to dingy pale pink. Stem 30-100 x 2-5mm, hollow; reddish brown with white hairs around the lower section and base; dry, smooth, brittle. Flesh thin, flexible; pinkish white. Taste bitter when cooked. Spores ellipsoid, smooth, 5-6.5 x 2-2.5µ. Deposit white. Habitat in dense clusters on decaying or buried logs or stumps of coniferous wood. Common among conifers. Found in northern North America, Colorado, and Texas. Season July-October (November in Texas). Not edible.