Fruiting Bodies initially egg-shaped, 30-50 mm broad x 40-90 mm tall, dark gray or grayish brown to black on upper portion, white at the base; upon development forming a Cap 70-120 (-160) mm broad, convex to obtusely conical at first, becoming plano-convex with a central umbo, dry, radially fibrillose, center and fibrils dark gray to black, paler towards the white margin. Gills free, close, broad, white becoming pinkish brown. Stem 80-145 x 10-15 mm, equal or gradually enlarged towards the bulbous base, silky-striate, white; volva sacklike, gray and white. Spore Deposit pinkish brown. Edibility: edible and choice.