Atheniella flavoalba

Hyphae of the cortical layer of the suprapellis with numerous excrescences that tend to compact, forming very dense masses; beneath these lie broader hyphae with short cells between septa.

Cheilocystidia fusiform to slightly lageniform, some with remnants of a gelatinous substance at the apex.

Pleurocystidia with morphology similar to the cheilocystidia.

Basidia clavate and 4-spored.

Spores drop- or pip-shaped, thin-walled, inamyloid in Melzer's reagent.