The size of cap sometimes attains to 3 in and stem to ½ in. in thickness. Taste at first farinaceous then sweetish. The caps are of excellent quality and flavor. (Plate XXIII.) [Illustration: TRICHOLOMA IMBRICATUM. One-half natural size. ] =T. imbrica´tum= Fr.—covered with tiles. =Pileus= fleshy, compact, convex or nearly plane, obtuse, dry, innately scaly, fibrillose toward the margin, brown or reddish-brown, the margin thin, at first slightly _inflexed and pubescent then naked_. =Flesh= firm, thick, white. =Gills= slightly emarginate, almost adnate, rather close, white when young, becoming reddish or spotted. =Stem= _solid_, firm, nearly equal, fibrillose, white and mealy or pulverulent at the top, elsewhere colored like the pileus. =Spores= 6.5 × 4–5µ. =Pileus= 2–4 in. broad. =Stem= 2–3 in. long, 4–10 lines thick. Under or near coniferous trees. Greene and Essex counties. September and October. This is an edible species. It has a farinaceous odor and taste when fresh. _Peck_, 44th Rep. N.Y. State Bot. Closely resembles T. transmutans in size, color and taste. It is, however, easily separated by its dry cap and solid stem. _Peck._ Plentiful in pine woods of New Jersey, and among hemlocks in West Virginia. Mt. Gretna, Pa., under pines. October and November, 1898. _McIlvaine._ Specimens found at Mt. Gretna had caps dark umber when young, and margin incurved to stem. Gills yellowish. Stem up to 4 in. long, stout, solid, swollen at base, and having a short pointed ending, firm, fibrillose, white. Flavor farinaceous. Flesh of good texture and taste. III.—RIG´IDA. Pileus rigid, cuticle broken up into smooth scales, etc. * _Gills white or pallid, not becoming spotted with red or gray. Not represented._ ** _Gills becoming reddish or grayish, spotted, etc._ =T. sapona´ceum= Fr.—_sapo_, soap. Strong, smelling of an undefinable soap. =Cap= 2–4 in. across, involute at first, convex then flattened, dry, glabrous, moist in wet weather, never viscid, brownish, more or less spotted or having the skin cracked into scales, occasionally covered with dark fibrils. =Flesh= firm, whitish becoming reddish when wounded. =Gills= emarginate, with a hooked tooth (uncinate) thin, distant, pale white. =Stem= 2–4 in. long, about ½ in. thick, often unequal, base sometimes long and rooting, usually smooth, at times reticulated with black fibrils, or is scaly. Distasteful. The species is variable in size and color. Stevenson remarks: “Scarcely any species has been more confounded with others.” It may always be safely distinguished by its odor, by its distant gills, by the smooth cuticle of the cap cracking into scales, and by the change of color to reddish when bruised. West Virginia mountains. August to frost. 1881–85. New Jersey, Pennsylvania. _McIlvaine._