“A very suspicious species and has the reputation of being noxious.” _Cooke._ “There is considerable external resemblance between this and A. campestris. No fungus is so often mistaken for A. campestris as this dangerous plant.” _W.G. Smith._ This species is considered noxious abroad. No test is reported of its qualities here. I have not seen it. =H. glutino´sum= Lind.—_gluten_, glue. (Plate LXXI, fig. 1, p. 268.) =Pileus= about 3 in. broad, yellow-white, the disk darker, fleshy, convex then plane, _regular_, obtuse, with a tenacious _viscous_ gluten, and slimy in wet weather, _sprinkled with white superficial scales_. =Flesh= whitish, becoming light-yellow. =Stem= 3 in. long, _stuffed_, firm, _somewhat bulbous, white-scaly_ and fibrillose, and white-mealy at the top, often rough with bundles of hairs at the base, at length rust-color within. Partial thread-like veil manifest, in the form of a cortina. =Gills= sinuato-adnate, somewhat decurrent, crowded, broad, _pallid then light-yellowish_, at length clay-cinnamon. Odor peculiar, mild. On branches and among leaves, oak and beech. Frequent. September to December. _Stevenson._ =Spores= 5×4µ _W.P._; plum-shaped, 7µ _Q._; elliptical, 10–12×5µ _Massee_; ellipsoid, 6–7×3–4µ _K._ New York. Among fallen leaves and half-buried decaying wood, in thin woods. Conklingville. September. In wet weather the gluten is sufficiently copious to drop from the pileus. _Peck_, Rep. 40. Haddonfield, N.J., among leaves in mixed woods. Frequent. 1896. Mt. Gretna, Pa., among leaves under oaks. Frequent. September to November. _McIlvaine._ =Caps= 1½-3 in. across. Remarkably glutinous, shining as if varnished when wet. Partial veil not always noticeable. The odor and taste are pleasant. The caps when well cooked are meaty, good, but of second quality. DENUDA´TI. Pileus smooth, etc. =H. crustulinifor´me= Bull.—_crustulum_, a small pie; _forma_, form. =Pileus= pale-whitish tan, most frequently pale-yellowish or brick-color at the disk, fleshy, convexo-plane, obtuse or slightly gibbous with an obtuse umbo, somewhat spreading with an uneven margin, even, smooth, at first slightly viscid, not zoned. =Flesh= transparent when moist. =Stem= _stuffed then hollow_, stout, somewhat bulbous, white, naked, white-scaly at the top. =Gills= _rounded-adnexed_, crowded, _narrowed_, 1 line broad and linear, thin, whitish then clay-color, at length date-brown, _the unequal edge distilling watery drops in wet weather, spotted when dry_. =Veil= quite _wanting_. Odor strong, fetid, of radish. Very variable in stature; the stem, however, is never elongated as in A. elatus, etc.; in smaller specimens equal, pileus regular, gills almost adnate. In mixed woods. Common. August to November. _Stevenson._ =Spores= ellipsoid, 10–12×5–7µ _K._; 9×5µ _W.G.S._ Var. _mi´nor_ Cke. Smaller than the type.