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Gregarious Agaric, with a somewhat fleshy cap, umbonate having a central bump, first chestnut-brown then sooty-whitish, with snow-white gills, a conical, striated, shining, reddish-livid stalk. Synopsis of the method of fungi, p. 362.
Inhabits pine forests, in autumn.
TAB. II. (fig. 1.) shows this species, and fig. 2 shows it in its younger state, and fig. 3 represents its internal structure and gills.
Stalk devoid of a radical volva. Cap of varied form. Gills either entire or intermixed with shorter lamellae, rarely branched (not veined).
Grouped, cap somewhat fleshy, raised like a shield, first of a color pulling toward black, or a dark chestnut, then of a sooty white; gills very white; stalk conical, (in young individuals) striated, of a livid reddish color.
It is found in pine forests. Its stalk is swollen toward its base, and furrowed toward its summit in the still-young fungus; it is smooth and almost solid in the adult state; hairless, elastic, hairy at its base. The gills are attached to the stalk, lanceolate shaped like a spearhead and notched. The cap, at first globular and almost black, becomes slightly sinuous with age, and acquires up to 3 inches in diameter.
It is represented by fig. 1 of Pl. II. Fig. 2 shows it to us in its youth. We see a perpendicular section of it in fig. 3, which shows its internal structure and its gills.