=C. al´bogri´seus= Pk.—pale-gray. =Pileus= firm, convex or slightly depressed, _glabrous_, pale-gray, odor farinaceous. =Gills= moderately close, adnate or slightly decurrent, grayish then flesh-colored. =Stem= solid, colored like the pileus. =Spores= angular or irregular, 10–11×7.5µ. =Pileus= 6–12 lines broad. =Stem= 1.5–2.5 in. long, 1–2 lines thick. Woods. Adirondack mountains. August. _Peck_, 42d Rep. N.Y. State Bot. Scattered. Mt. Gretna, Pa., woods. August to October. _McIlvaine._ Edible, pleasant. =C. mi´cropus= Pk.—short-stemmed. =Pileus= thin, fragile, convex or centrally depressed, _umbilicate, silky_, gray, usually with one or two narrow zones on the margin, odor farinaceous. =Gills= narrow, close, adnate or slightly decurrent, gray, becoming flesh-colored. =Stem= _short_, solid, slightly thickened at the top, pruinose, gray with a white mycelium at the base. =Spores= angular or irregular, 10×6µ. =Pileus= 6–12 lines broad. =Stem= 8–10 lines long, 1 line thick. Thin woods. Essex and Rensselaer counties. August. This species is closely allied to the preceding one, but may be separated from it by its short stem and silky umbilicate subzonate pileus. Both species are rare and have been observed only in wet, rainy weather. _Peck_, 42d Rep. N.Y. State Bot. Scattered markedly umbilicate. Mt. Gretna, Pa., woods. August, September. _McIlvaine._ Edible, pleasant. 2. _Pileus hygrophanous._ =C. subvi´lis= Pk.—small value. =Pileus= thin, centrally depressed or umbilicate, with the margin decurved, hygrophanous, _dark-brown_ and striatulate on the margin when moist, grayish-brown and silky shining when dry, taste farinaceous. =Gills= _subdistant_, adnate or slightly decurrent, whitish when young, then flesh-colored. =Stem= slender, brittle, rather long, _stuffed or hollow_, glabrous, colored like the pileus or a little paler. =Spores= angular, 7.5–10µ. =Pileus= 8–15 lines broad. =Stem= 1.5–3 in. long, 1–2 lines thick. Damp soil in thin woods. Albany county. October. The species is allied to C. vilis, from which it is separated by its silky-shining pileus, subdistant gills and farinaceous taste. _Peck_, 42d Rep. N.Y. State Bot. Scattered. Mt. Gretna, Pa. September to November. _McIlvaine._ Edible, pleasant. =C. Wood´ianus= Pk. =Pileus= thin, convex or nearly plane, umbilicate or centrally depressed, hygrophanous, striatulate on the margin when moist, _whitish or yellowish-white_ and shining when dry, the margin often wavy or flexuous. =Gills= close, adnate or slightly decurrent, whitish, then flesh-colored. =Stem= equal, flexuous, shining, _solid_, colored like the pileus. =Spores= subglobose, angular, 6–7.5µ. =Pileus= 1–2 in. broad. =Stem= 2–3 in. long, 2 lines thick. Ground and decayed prostrate trunks in woods. Lewis county. September.