Gymnopus alkalivirens

Pileipellis composed of branched, short-septate filamentous elements, densely interwoven puzzle-like, 3-5 µm wide, thin-walled, with faint brownish intracellular pigment and abundant brown incrustations, mostly with simple septa and scattered clamps.

Cheilocystidia scarce and scattered, cylindrical to slightly clavate, sinuous, difficult to observe, up to 50 µm long.

Basidia clavate, with widened apex, up to 30 µm long, with basal clamps, 4-spored.

Spores ellipsoidal, smooth, hyaline, thin-walled, with a fairly prominent eccentric apiculus at one end, vacuolar internal content, inamyloid in Melzer's reagent.