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

ROBLEDO G., C. URCELAY, L. DOMINGUEZ & M. RAJCHENBERG

CANADIAN JOURNAL OF BOTANY

Año: 2006 vol. 84 p. 1561 - 1572

0008-4026

Twenty three polypore species were found in Polylepis woodlands from Argentina. Among them, three are endemic and six neotropical. Most of the species that occur exclusively in Polylepis are facultative parasites or occur in early stages of wood decay and belong to Hymenochaetaceae. Results reported here suggest that Polylepis forests provide very important habitats and substrates for certain polypore species. Host specificity and patterns of distribution are discussed. In addition, Datronia orcomanta Robledo & Rajchenb. is described as a new endemic taxon, characterized by spore size (i.e., 13-15 x 4-5,5 µm) and the particular substrate-habitat (dead thin logs attached to living P. australis). An annotated key for the accepted Datronia Donk species and related taxa is presented