Basidiome effused, pellicular to thin membranaceous. Hymenial layer easily separable from poorly developed subiculum and substrate. Hymenial surface even, whitish to cream-coloured when old. Margin indistinct; hyphal strands absent. Subicular hyphae somewhat thick-walled, 2.5-6.5 µm wide. Subhymenial hyphae hyaline, thin- to slightly thick-walled, 2.5-4 µm wide. Clamps present at all primary septa. Cystidia and hyphidia absent. Basidia hyaline, thin-walled, clavate to urniform, often with a basal swelling (probasidium), terminal or lateral (pleurobasidia), 22-45 X 6-7.5 µm, with 4 sterigmata up to 7 µm long. Spores hyaline, thin- to slightly thick-walled, globose, 7.5-9.5 µm diam., echinulate with smooth suprahilar plage, not amyoid; most spores with a large globule, which may cause a thick-walled appearance.