Gymnopus fusipes

Pileipellis composed of filamentous hyphae, densely interwoven, with very abundant brown intracellular pigment, up to 10 µm wide, septate and clamped.

Terminal hyphae on the gill edge hair-like, scarce, cylindrical, slender, sinuous, projecting considerably above the level of the basidia.

Basidia clavate, up to 33 µm long, with basal clamps, 4-spored.

Spores ovoid to short ellipsoidal, smooth, hyaline, thin-walled, with an eccentric apiculus at one end, vacuolar internal content, inamyloid in Melzer's reagent.