Taxonomy, ecology, and biogeography of polypores (Basidiomycetes) from Argentinian Polylepis woodlands

Twenty-three polypore species were found in Polylepis Ruiz & Pav. (Rosacecae) woodlands from Argentina. Six species occur exclusively in the neotropics and four are host-specific to Polylepis ( Phellinus tabaquilio , Phellinus uncisetus , Phellinus daedaliformis , and Datronia orcomanta ), of which the first two are facultative parasites or occur during the early stages of wood decay. Host specificity and patterns of distribution vary among species. Datronia orcomanta Robledo & Rajchenb. is described as a new endemic taxon and Inonotus serranus is reduced to synonymy with Inonotus venezuelicus .