Cap 15-40 mm broad, convex becoming plano-convex, strongly rugulose to corrugated overall, glabrous, hygrophanous, dark brown to brownish gray fading to grayish orange; margin with hanging, submembranous to fibrillose, white remains of a partial Viel. Gills adnexed, close to crowded, broad, brown to dark brown. Stem 30-55 x 3-6 mm, cylindrical, glabrous, white to beige; with a submembranous to fibrillose partial Viel when young that ruptures and remains on the Cap margin. Spore Deposit dark brown. Edibility: unknown, not recommended.