Cap: 5-17 cm; convex to broadly convex or nearly flat in age; dry; smooth or finely felty; brown to tan, usually with cinnamon shades.
Pore Surface: White becoming pinkish (eventually nearly brownish); bruising brown; pores angular, 2 per mm; tubes to 12 mm.
Stem: 4-10 cm long; 1-3 cm thick; more or less equal; whitish when young; bruising and discoloring brownish; fairly smooth, or very finely reticulate near the apex.
Flesh: Thick and white; staining pinkish to brownish on exposure.
Odor and Taste: Not distinctive.
Chemical Reactions: Ammonia brownish, pinkish, or negative on cap surface; negative on flesh. KOH dark red to black on cap surface; negative to pale orangish on flesh. Iron salts dark gray on cap surface; negative to faintly bluish on flesh. (Data from my collections.)
Spore Print: Flesh colored to pinkish brown.
Microscopic Features: Spores 10-15 × 3-5 µ; smooth; fusiform to subfusiform. Pileipellis a cutis of mostly erect, cylindric elements 3-9 µ wide; hyaline to yellowish in KOH; with rounded to subacute apices