Description:
mushroom
Fruiting Body: cap 5-8 cm; stalk central, 7-17.5 cm long x 9-15 mm diameter, equal. Spore Print Color: black. Spores: basidiospores 8-11 x 5-6 µm, cylindric-ellipsoid, smooth, dark brown, central truncate pore.

Diagnostic macroscopic feature: large single to caespitose gray inky cap with ring at base, on wood or soil

Diagnostic microscopic feature: smooth, broad spores; sterile cells on gill sides and margins cylindric to utriform, to 210 x 55 µm

Nutritional Mode: saprobe

Substrate: on downed wood, or on wood in soil

Habitat: woodlands

Fruiting Season: summer, fall