A cosmopolitan genus, but especially abundant in tropical regions, with lignicolous species growing on dead or living wood.
Sporophores marasmioid, omphaloid or pleurotoid, often small and delicate. Cap thin to membranous, striated, translucent, brightly coloured or unpigmented, usually
hygrophanous. Stipe without ring. Flesh thin, pale, inamyloid, occasionally gelatinized. Hymenophore with adnate or decurrent lamellae, thin, tough, often with
a pruinate surface. Spore print white. Spores small to medium, subglobose to ellipsoid or fusoid, sometimes angular or stellate, smooth, thick-walled, amyloid.
Cheilocystidia usually present. Trama regular to irregular. Clamp connections always present.