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concolorous with the pileus cap, but much paler, whitening at the apex, white-villous covered with fine, soft white hairs at the base. The veil is fleeting.
The lamellae gills are rather broad, attached to the stipe in an emarginate notched manner, whitish at first, then fading, and in older specimens they even turn reddish, while the margin is for the most part stained with ferruginous rust-colored spots, and the side is eventually somewhat pleated.
The pileus in younger specimens is globose-acuminate round and pointed, in adults it becomes hemispherical-convex, and finally flat: with a repand wavy or bent backward margin. The scales in the center of the pileus are rather thick, broad, and short, becoming dissolved into fasciculated bundled hairs toward the margin.
The color is reddish-cinnamon. The substance is white and spongy. The taste is bitter.
Because this species resembles the two following species in its place of origin, shape, size, slight taste, and color, it is permissible to add their differences here as well so that they may be better distinguished from one another:
Agaricus aurantius Orange Agaric: with a fleshy, convex, tomentose downy, rather flat, orange-colored pileus; crowded, white lamellae; and a transversely scaly, orange stipe, with a whitish apex. — SCHAEFF. FUNG. BAVAR. Schaeffer, Fungi of Bavaria t. XXXVII.
Agaricus brunneus Brown Agaric: with a fleshy, somewhat viscous, smooth, umber-colored pileus; crowded, white lamellae; and a solid, minutely scaly, red stipe, with a white apex. — Agaricus striatus SCHAEFF. l. c. in the cited work t. XXXVIII. Agaricus glutinosus BULL. CHAMP. Bulliard, Mushrooms of France t. 258.
Table two, Fig. 1 and 2 show the younger state of this fungus, Fig. 3 the adult, and Fig. 4 shows it in cross-section so that the internal parts may be observed.