On the ground in pastures and woods, rarely on rotten wood. Usually blackish-umber, but varies to paler grayish-brown, pinky-tan, pale cinnamon or brownish; then dingy-ochraceous or tan-color. Margin expanded when old, and also indistinctly striate. _Fries._ Var. _cineras´cens_ Fr. =Pileus= up to 1 in. across, thin, infundibuliform, pale smoky-brown. =Gills= decurrent, yellowish-white. =Stem= 1–2 in. long, 1½ line thick, grayish, reticulately fibrillose, hollow. =Spores= 8×5µ _W.G.S._; 10–12×5–6µ, _B._; 9×6µ _Morgan_. Mt. Gretna, Pa. Among leaves in woods. September to October. Gregarious. _McIlvaine._ Fair in quality. =C. bruma´lis= Fr.—_bruma_, winter. From its late appearance. =Pileus= about 1 in. across. =Flesh= thin, expanded, umbilicate then infundibuliform and usually variously waved and lobed, glabrous, flaccid, hygrophanous, livid, whitish or yellowish when dry, disk often darker. =Gills= decurrent, about 1 line broad, crowded, pallid. =Stem= up to 2 in. long and about 2 lines thick, nearly equal, slightly curved, glabrous, whitish, often compressed, imperfectly hollow. =Spores= 4–5×3–4µ. In woods, etc. Truly autumnal, being most abundant in November. There are two forms: (_a_) on pine leaves in pine woods; (_b_) among heather. (_a_) Stem rather firm, hollow, about 2 in. long, 2 lines thick, equal or slightly thickened at the apex, at length compressed, somewhat incurved, glabrous, naked, becoming livid, white when dry, base white and downy. Flesh of pileus membranaceous, at first convex, umbilicate, margin reflexed, about 1 in. across, then funnel-shaped, often irregular and undulate, up to 2 in. broad, glabrous, even, livid when moist, whitish then becoming yellowish when dry, disk at first usually darker. Gills decurrent, at first arcuate, then descending, 1 line broad, crowded, distinct, livid then yellowish-white, smell weak, not unpleasant. (_b_) Entirely watery white; stem hollow, somewhat striate, base glabrous; pileus infundibuliform, margin deflexed, milky-white when dry. Gills less crowded, but rather broader, whitish. _Fries._ =Spores= 3µ _W.G.S._; 4–5×3–4µ _Massee_. Edible. _Cooke._ =C. morbi´fera= Pk.—_morbus_, disease; _fero_, to bear. =Pileus= thin, fragile, glabrous, convex, becoming plane or centrally depressed, slightly hygrophanous, grayish-brown when moist, whitish or cinereous when dry, sometimes slightly umbonate. =Gills= narrow, close, adnate or slightly decurrent, whitish or pallid. =Stem= short, equal, hollow, colored like the pileus or a little paler. =Spores= minute, broadly elliptical, 4µ long, almost as broad. =Pileus= .5–1.5 in. broad. =Stem= about 1 in. long, ⅙–¼ in. thick. Grassy ground and lawns. November. Washington, D.C. _F.J. Braendle._