Cap: 2.5-12 cm; convex, becoming broadly convex, flat, or broadly bell-shaped; moist becoming dry; smooth or silky; purplish cinnamon at first, changing to reddish brown or cinnamon brown as it dries out.
Gills: Attached to the stem; fairly well spaced; pale or pale purplish when young, becoming cinnamon to rusty; covered by a cortina when young.
Stem: 3-9 cm long; 0.5-2.5 cm thick at the apex; somewhat swollen at the base; dry or moist; smooth or finely silky; pale purplish to brownish, with a fiery orange or bright to brick red base; basal mycelium also brightly colored; sometimes with a rusty ring zone.
Flesh: Whitish or dingy brownish.
Odor: Fragrant, or not distinctive.
Chemical Reactions: KOH gray to purplish on cap surface; instantly dark blue to dark purple on orange surfaces.
Spore Print: Rusty brown.
Microscopic Features: Spores 7-10 × 4-5.5 µ; ellipsoid, often with one subfusoid end; weakly to moderately roughened; orangish brown in KOH. Cheilo- and pleurocystidia absent. Pileipellis a cutis