Woods. Albany county and Catskill mountains. September and October. The stem splits easily and the pileus becomes paler in drying. It sometimes becomes cracked in areas. _Peck_, 44th Rep. N.Y. State Bot. On ground. Mt. Gretna. October and November. 1897. _McIlvaine._ The species was plentiful among the leaf mold, growing from the ground in mixed woods. The caps are delicate in substance and flavor. =T. leucoceph´alum= Fr. _Gr._—white; head. =Pileus= 1½-2 in. across, convex then plane, even, moist, smooth, but when young covered with a satiny down; water-soaked after rain. =Flesh= thin, tough, white. =Gills= rounded behind and almost free, white. =Stem= up to 2 in. long, ¼ in. thick, exterior hard, shining, fibrous; interior hollow but solid at base which is attenuated and rooting, twisted. =Smell= strong of new meal. Taste pleasant. =Spores= 9–10×7–8µ. Mt. Gretna, Pa. Grassy woods and borders. October to November, 1898. _McIlvaine._ Quite common. The caps are excellent. =T. al´bum= Schaeff.—_albus_, white. =Pileus= fleshy, tough, convex, becoming plane or depressed, obtuse, very dry, even, _glabrous, white_, sometimes yellowish on the disk, rarely wholly yellowish, the margin at first involute. =Flesh= white, taste _acrid or bitter_. =Gills= emarginate, somewhat crowded, distinct, white. =Stem= solid, elastic, equal or tapering upward, externally fibrous, obsoletely frosted at the apex, white. =Spores= elliptical, 5–6µ, long. =Pileus= 2–4 in. broad. =Stem= 2–4 in. long, 4–6 lines thick. Woods. Common. August to October. This species is variable in color and in size, being sometimes robust, sometimes slender. It grows singly, in troops or in tufts. It has no decided odor, but a bitter unpleasant taste. _Peck_, 44th Rep. N.Y. State Bot. Cooked, tender and of fair flavor. ** _Gills becoming discolored._ =T. persona´tum= Fr.—wearing a mask (from its many varieties of colors). (Plate XVIII, p. 60.) =Pileus= compact, becoming soft, thick, convex or plane, obtuse, regular, moist, bare, variable in color, generally pallid or ashy tinged with violet or lilac, the margin at first _involute and frosted with fine hairs_. =Flesh= whitish. =Gills= broad, crowded, rounded behind, free, _violaceous becoming sordid-whitish or dingy-brown_. =Stem= generally thick, subbulbous, solid, fibrillose or frosted with fine hairs, whitish or colored like the pileus. =Spores= dingy white, subelliptical, 8–9×4–5µ. On white paper the spores have a slight salmon tint, but they are regular in shape, not angular as in Entoloma. =Pileus= 2–5 in. broad. =Stem= 1–3 in. long, 6–12 lines thick. _Peck_, 44th Rep. N.Y. State Bot. Woods and open places, and growing from old, matted stable straw. Common over the United States.