Summary:
Inocephalus minutopilus is distinct because of a dark gray brown color, a matted-fibrillose cap that is 0.9-1.6cm broad, a stem with superficial fibrils, spores that measure 7.8-10 x 6.0-8.8 microns, absent cheilocystidia, absent pleurocystidia, and clamp connections in the cap cuticle. The description is derived from Largent(1) who says it is rare.

Cap:
0.9-1.6cm across, convex to flat, [also referred to as depressed]; almost black on disc, more brown elsewhere; dull, disc matted fibrillose to matted tomentulose under a hand lens, appressed-fibrillose elsewhere

Gills:
adnate, subdistant, about 16 reaching stem, 1-3 subgills between neighboring gills; gray-brown developing pinkish cast

Stem:
2.5-5cm x 0.15-0.2cm at top, 0.25-0.4cm wide at base, slightly bulbous; very dark gray-brown; slightly translucent, more or less smooth and bald but with fine fibrils longitudinal near base under hand lens (finely longitudinally striate)

Veil:
[absent]

Odor:
mild, possibly slightly fragrant

Taste:
mild, possibly faintly farinaceous

Microscopic spores:
spores 7.8-10.0 x 6.0-8.8 microns, 5-6 sided, distinctly angular, smooth; basidia not mentioned; pleurocystidia absent, cheilocystidia absent; cap cuticle a trichodermium to a layer of entangled hyphae with upturned ends, pileocystidia cylindric to cylindro-clavate; clamp connections present and abundant in cap cuticle, not observed elsewhere; pigment intracellular, no incrustations

Spore deposit:
[presumably pinkish brown]

Notes:
The holotype is from WA. There are collections from Haida Gwaii and Victoria in BC at the University of British Columbia determined by O. Ceska.

EDIBILITY

Synonyms and Alternate Names:
Entoloma minutopilum (Largent) Noordel. & Co-David