Pileus up to 6 x 4 mm when still closed, up to c. 10 mm when expanded, first ellipsoid, cylindric-ellipsoid, grey-brown at centre beneath the whitish to silvery grey veil, paler to margin, expanding to conical, then to convex or applanate, finally plano-concave with revolute margin. Veil whitish to pale (silvery) grey, radially splitting up into hairy to fibrillose, often pointed and adpressed or - especially at centre - recurved flocks, the tips becoming brown on drying. Lamellae, L = c. 30, l = 1-3(-5), free, narrow, rather crowded, first white, soon greyish brown to blackish. Stipe 20-50 x 0.5-1 mm, whitish, somewhat tapering towards apex, up to 1.5 mm wide at clavate base, hollow, minute hairy flocculose, particularly densely at lower part, becoming glabrous with age. Base often somewhat rooting.
  Spores [40/2/2] 7.7-9.7 x 4.9-5.5 µm, cylindrical ellipsoid, with rounded base and apex, and central, c. 1.3-1.5 µm wide germ pore, very dark red-brown to almost black under microscope; Q = 1.55-1.80, av. Q = 1.70; av. L = 8.6-8.8, av. B = 5.0-5.2 µm. Basidia 18-32 x 8-10 µm, 4-spored, surrounded by 3-6 pseudoparaphyses. Pleurocystidia 30-80 x 20-30 µm, ellipsoid to oblong, utriform or subcylindrical. Cheilocystidia 25-60 x 15-28 µm, (sub)globose, ellipsoid to oblong or (sub)utriform. Pileipellis hyphoid. Veil made up of elongate, sausage-like elements, 30-180 x 8-25(-30) µm, often inflated, usually constricted at septa; terminal cells cylindrical to almost globose. Clamp-connections present.

Habitat & distribution

  Growing solitary in small groups or fasciculate on pure dung or mixed dung. Rather rare but wide-spread in Europe.