Studies in the Antrodia serialis group (Polyporales, Basidiomycota).

Taxonomy and phylogeny of theAntrodia serialisgroup are revised with morphological, ecological, and geographic data, partial translation elongation factor 1-α (tef1) gene sequences, and nuc rDNA ITS1-5.8S-ITS2-28S sequences. The group contains 13 species found in boreal and temperate zones of the Northern Hemisphere. The species are limited to certain geographic areas within Eurasia and North America. The traditional morphology-based concept ofA. serialiscovers at least four closely related species:A. serialiss. str. in Eurasia,A. angusta, sp. nov., in East Asia,A. serrata, sp. nov., in the American Northeast, andA. calcitrosa, sp. nov., in the American Northwest. They all are associated mostly withPiceaspp. and show small, but stable morphological differences from each other. In addition,A. morganii, comb. nov., inhabiting wood ofPopulusspp., occurs in North America, andAntrodia alaskana, comb. nov., a large-pored species, macroscopically similar toA. variiformis, is distributed along the Pacific coast of North America. The pine-dwellingA. flavimontis, sp. nov., similar toA. primaevafrom Eurasia, is so far known only from the eastern part of the Rocky Mountains (Utah and Wyoming). [ABSTRACT FROM PUBLISHER]