On Canary Islands polypores: news and problems

A total of 20 selected species of polypores recorded on the Canary Islands are characterized and commented. New biogeography and ecology data of polypores of Macaronesia are presented. Four species: Antrodiella fissiliformis, Diplomitoporus flavescens, Haploporus odorus and Skeletocutis albocremea are proposed for exclusion from the Canary Islands mycobiota. Several species are confirmed for the first time: Ceriporiopsis consobrina, Ceriporiopsis pseudogilvescens, Gloeophyllum cf. abietinum, Gloeophyllum trabeum, Perenniporia meridionalis, Porodaedalea sp., Sidera vulgaris. Two new genera of polypores, Gloeophyllum and Porodaedalea, are recorded as new for Canary Islands. The results are based on the review of herbarium specimens and field research.