Three new Perenniporia (Polyporales, Basidiomycota) species from China based on morphological and molecular data

Three new Perenniporia species, P. lacerata, P. luteola and P. tianmuensis, are described based on morphological and molecular characters. Perenniporia lacerata is characterized by an annual habit, resupinate and papery basidiocarps with lacerate pores, a dimitic hyphal system with weakly dextrinoid skeletal hyphae, truncate and dextrinoid basidiospores. Perenniporia luteola is distinguished by a perennial habit, resupinate basidiocarps with buff-yellow pore surface, a dimitic hyphal system with dextrinoid skeletal hyphae, non-truncate and dextrinoid basidiospores. Perenniporia tianmuensis differs in its annual habit, pileate basidiocarps, a dimitic hyphal system with strongly dextrinoid skeletal hyphae, non-truncate and dextrinoid basidiospores. Phylogenetic analysis based on ITS and LSU-rDNA regions revealed five clades for 29 species of Perenniporia used in this study. Both morphological and molecular evidence confirmed the placement of three new species in Perenniporia and showed its relationships with similar species in the genus.

► Three new Perenniporia species, P. lacerata, P. luteola and P. tianmuensis, matching the concepts of Perenniporia were found. ► Phylogenetic analysis was carried out based on ITS and nLSU sequences. ► Perennipori contraria clade is distant from the Perenniporia s.s clade.