On Hyphodontia australis (Corticiaceae, Basidiomycota)

Hyphodontia australis is recorded and described from the Nothofagus forests of southern Argentina and from New Zealand. The species, previously known from Australia, is an odontioid to hydnoid taxon with orange to chestnut co lored hymenial surface that readily turns violet upon the application of a drop of KOH solution. Specimens of H. australis from different areas are si milar in all features except the spores, that vary from ellipsoid (Australi an material including the type), broadly ellipsoid (New Zealand collections ), to narrowly ellipsoid or subcylindric (Argentinian specimens). The inclu sion of this taxon in Hyphodontia is supported by the presence of imperfora te parenthesomes, hyphodontioid hyphae, basidia, leptocystidia, and by cult ural features.