Clade V includes Perenniporia fraxinea (Bull.) Ryvar-den, P. robiniophila (Murrill) Ryvarden and P. vicina (Lloyd) D.A. Reid, and species in this clade are character-ized by pileate basidiocarps, strongly dextrinoid skeletal hyphae, and amygdaliform, non-truncate and strongly dex-trinoid basidiospores. Reid (1973) established the genus Vanderbylia D.A. Reid to accommodate these species. But it was treated as a synonym of Perenniporia (Ryvarden1991). Our analysis inferred from ITS combined LSU sequences data showed that P. fraxinea, P. robiniophila and P. vicina formed a well resolved monophyletic clade with strong support (100 % BP, 1.00 BPP), and it is distant from Perenniporia s.s., and could be recognized as a separate genus of Vanderbylia (MycoBank: MB 18722.