Parasola sect. Parasola Redhead, Vilgalys & Hopple

Description.

Basidiomata small-sized, mainly terrestrial, sometimes fimicolous or lignicolous, withering or partial deliquescent at age. Pileus almost flattened cracking into plication when mature, veil absent. Lamellae free, mostly remote from stipe, withering. Stipes hollow, most glabrous, occasionally with flour scales. Basidiospores subglobose, ellipsoid, ovoid, rounded subtriangular, rhombic, subpentangular, hexagonal in front view, ellipsoid or lentiform in side view, germ pore central or eccentric. Basidia dimorphic, regularly 4 - spored. Lamellae trama regular, colorless or in brown hue. Lamellae margin infertile, cheilocystidia abundant, subglobose, utriform, ellipsoid, sublageniform or subcylindrical. Pleurocystidia mainly present, subglobose, utriform, sublageniform or subcylindrical. Original pileipellis hymeniform, secondary pileipellis subcutis. Caulocystidia only accumulate at top of stipe forming pseudocollarium. Clamps present and sometimes present pseudoclamps.