Studies in the Ceriporia purpurea group (Polyporales, Basidiomycota), with notes on similar Ceriporia species

Taxonomy of the Ceriporia purpurea group is revised based on morphological and DNA data. Neotype is selected to settle current species concept of C. purpurea s. str. Ceriporia bresadolae is reinstated as a good species, and four new species from subtropical and temperate forests of Europe (C. torpida, C. triumphalis) and North America (C. manzanitae, C. occidentalis) are described. In addition, diagnostic features of other redcolored Ceriporia species are discussed, including C. punicans, spec. nov.