Two forms of this species are found. One has a scattered form of growth, the other found on decaying wood of birch is cespitose. The species is allied to P. marginata, from which it is readily distinguished by its viscid pileus. _Peck_, Rep. 44. Var. _discolor minor_ Pk. Small. Pileus 6–10 lines broad, chestnut color when young or moist. Stem about 1 line thick, at first clothed with whitish fibrils. Among mosses about or on the base of stumps. September. _Peck_, Rep. 46. West Virginia. Eagle’s Mere, Mt. Gretna, Pa. August to frost. On decaying wood. _McIlvaine._ This little Pholiota is abundant where it does grow. In the West Virginia forests I have seen logs with many tufts of it upon each. The caps are fairly good. [Illustration] =INO´CYBE= Fr. _Gr_—fiber; _Gr_—head. (Plate LXXV.) [Illustration: INOCYBE LANUGINOSA. One-fourth natural size. ] Universal veil somewhat fibrillose, concrete with the cuticle of the pileus, often free at the margin, in the form of a cortina. =Gills= somewhat sinuate (but they occur also adnate and in two species decurrent), changing color, but not powdered with cinnamon. =Spores= often rough, but in others even, more or less brownish-rust color. Inocybe (with Hebeloma) corresponds with Tricholoma. Inocybe and Hebeloma have some common features, but they are really very distinct. Inocybe is readily distinguished by the fibrillose covering of the pileus, which never has a distinct pellicle, by the veil which is continuous and homogeneous with the fibrils of the pileus, and by the rusty-brown spores. All grow on the ground. They are (mostly) strong-smelling (commonly nauseous). None are edible. _Stevenson._ None reported as either edible or poisonous. Those I have tested are not pleasant. [Illustration] =PLUTE´OLUS= Fr. Dim. of _pluteus_, a shed. =Pileus= conical or bell-shaped, then expanded, rather fleshy, viscid, margin at first straight and pressed to the stem. =Gills= _free, rounded behind_. =Stem= somewhat cartilaginous, its substance different from that of the pileus. Growing on wood. =Spores= rust or saffron color. Pluteus, the only genus having the same structure, is separated by its salmon-colored spores. (Plate LXXVI.) [Illustration: PLUTEOLUS RETICULATUS. About natural size. ] =P. reticula´tus= Pers.—_rete_, a net. From the net-work of veins on the pileus. =Pileus= slightly fleshy, bell-shaped, then expanded, sticky, reticulate with anastomosing veins, pale violaceous, striate on the margin. =Lamellæ= free, ventricose, crowded, rusty-saffron. =Stem= hollow, fragile, fibrillose, mealy at the top, white. =Spores= elliptical, ferruginous, 10–13×5–6.5µ. =Pileus= 1–2 in. broad. =Stem= 1–2 in. long, 1–2 lines thick. Decaying wood. Cattaraugus county. September.