=T. transmu´tans= Pk.—changing. =Pileus= convex, _nearly bare_, viscid when moist, brownish, reddish-brown or tawny-red, usually paler on the margin. =Flesh= white, taste and odor farinaceous. =Gills= narrow, close, sometimes branched, whitish or pale yellowish, becoming dingy or reddish-spotted when old. =Stem= equal or slightly tapering upward, _bare_ or slightly silky-fibrillose, stuffed or hollow, whitish, often marked with reddish stains or becoming reddish-brown toward the base, white within. =Spores= subglobose, 5µ. =Pileus= 2–4 in. broad. =Stem= 3–4 in. long, 3–6 lines thick. Woods. The plants are often cespitose. I suspect that Agaricus frumentaceus of Curtis’s catalogue belongs to this species. Both the pileus and stem, as well as the gills, are apt to assume darker hues with age or in drying, and this character suggested the specific name. The species is classed as edible. _Peck_, 44th Rep. N.Y. State Bot. Curtis catalogues T. frumentaceum as edible. T. transmutans is reported from many states. It has a mealy taste and odor. Wherever it is found it is a valuable food species. =T. sejunc´tum= Sow.—separated; from the peculiar manner in which the gills separate from the stem. =Pileus= fleshy, convex then expanded, umbonate, slightly viscid, _streaked with innate brown or blackish fibrils_, whitish or yellowish, sometimes greenish-yellow. =Flesh= white, fragile. =Gills= _broad, subdistant_, rounded behind or emarginate, white. =Stem= solid, stout, often irregular, white. =Spores= subglobose, 6.5µ. =Pileus= 1–3 in. broad. =Stem= 1–3 in. long, 4–8 lines thick. Mixed woods. Suffolk county, N.Y. September. The plants referred to this species are not uncommon on Long Island, growing on sandy soil in woods of oak and pine. They are usually more or less irregular and the pileus becomes fragile. It is quite variable in color, sometimes approaching a smoky-brown hue, again being nearly white. The taste of the typical form is said to be bitter, but the flavor of our plant is scarcely bitter. In other respects, however, it agrees well with the description of the species. _Peck_, 44th Rep. N.Y. State Bot. =Spores= 6µ. _W.G.S._ Flesh is tender. Cooked, of good body and peculiar but pleasant flavor. A valuable species, baked, scalloped, fried. =T. terri´ferum= Pk.—_terra_, earth; _fero_, to bear. =Pileus= broadly convex or nearly plane, irregular, often wavy on the margin, glabrous, viscid, _pale-yellow_, generally soiled with adhering particles of earth carried up in its growth. =Flesh= white, with no decided odor. =Gills= thin, crowded, slightly adnexed, white, not spotted or changeable. =Stem= equal, short, solid, white, _floccose-squamulose at the apex_. =Spores= minute, subglobose, 3µ. =Pileus= 3–4 in. broad. =Stem= 1–1.5 in. long, 6–8 lines thick. Woods. Catskill mountains. September. _Peck_, 44th Rep. N.Y. State Bot. Found in West Virginia, Pennsylvania, New Jersey. August to frost. _McIlvaine._