Vanderbylia

Vanderbylia D.A. Reid 1973, in Cui, et al., Fungal Diversity 97, 137–392 (2019)

Diagnosis: Basidiocarps annual to perennial, pileate, hard corky to woody hard. Pilei applanate, slightly convex, semicircular; pileal surface slightly to distinctly warted, glabrous. Pore surface white to grayish cream; pores round; dissepiments thick, entire. Hyphal system dimitic; generative hyphae hyaline, thin-walled, rarely branched, bearing clamp connections; skeletal hyphae dominating in the context, hyaline, subsolid to thick-walled with a wide lumen, branched, interwoven, variably dextrinoid, cyanophilous; hyphae occasionally swollen in KOH. Cystidia absent; cystidioles variably present. Basidia clavate, with four sterigmata and a basal clamp connection; basidioles often dominant, in shape similar to basidia, but slightly smaller. Basidiospores subglobose to amygdaliform, non-truncate, hyaline, thick-walled, smooth, strongly dextrinoid, CB+. Dichohyphidia-like (coral-like dendrohyphidia) element present at the dissepiment.

Index Fungorum Number: IF18722

Type species: Vanderbylia vicina (Lloyd) D.A. Reid 1973, in Cui, et al., Fungal Diversity 97, 137–392 (2019)

Notes: Vanderbylia is similar to Perenniporia sensu stricto on the basis of the thick-walled basidiospores, but it differs by its pileate, hard corky basidiocarps and strongly dextrinoid skeletal hyphae and subglobose to amygdaliform, nontruncated basidiospores (Núñez & Ryvarden 2001). Molecular studies showed that this genus is distant from Perenniporia sensu stricto (Zhao & Cui 2013; Zhao et al. 2013).