Pileus: 1.4 — 3.5 cm in diameter, conic to convex to broadly convex becoming flat in age, not usually umbonate, deep chestnut brown, hygrophanous fading to yellowish brown or grayish white when dry. Surface viscid when moist from separable gelatinous pellicle.
Gills: Adnate to adnexed to slightly subdecurrent in age, light grayish becoming purplish brown with age, edges remaining whitish.
Spores: Purplish brown in deposit. Subellipsoid in shape, (9)9.5 — 11(12) x (5.5)6 — 6.6(7) [[µm]].
Stipe: 3 — 8 cm long x 0.5 cm thick, equal to enlarging near the base, striate, pallid to yellow brown with fine fibrils that stain blue when handled. Partial veil with a cortina, sometimes leaving a fragile annular zone. White rhizomorphs at the base, flesh brownish bruising bluish to indigo-black.
Microscopic features: Pleurocystidia absent, basidia 4-spored, rarely 2-spored, cheilocystidia fusiform to lanceolate 22 — 33 × 5.5 — 7 µm, with an elongated, forking neck, 1 — 1.5 µm thick at apex.