Nomenclatural Citations/Agaricus/carnosior

Original description (English)
Pileus thick, fleshy, obconic, at first convex, then plane or slightly depressed, subumbonate, brown, the margin at first involute, at length expanded, thin; gills white, not crowded, some of them forked; stem concolorous with the pileus, fibrillose, slightly tapering upwards. Pine woods. West Albany and Sandlake. Sept.-Oct. Height 2-4 in., breadth of pileus 1-3 in., stem 3-6 lines thick. The flesh is moist, soft, and white, sometimes caespitose. Taste pleasant.