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The genus Hydnoporia (Hymenochaetales, Hymenochaetaceae) was first described by Murrill in 1907. However, species of Hydnoporia were subsequently reclassified into the genera Hymenochaete, Hymenochaetopsis, and Pseudochaete due to overlapping morphological characteristics, leading to multiple synonyms and confusion among researchers. Recent phylogenetic analyses based on multimarker datasets have clarified the diversity and relationships within Hydnoporia, but East Asian species remain underrepresented due to limited morphological data. To address this gap, we conducted a comprehensive morphological and phylogenetic analysis of East Asian Hydnoporia specimens using internal transcribed spacer (ITS) and translation elongation factor 1–α (tef1) regions. From 42 specimens, we identified six species, including two novel species, Hydnoporia orienticorrugata sp. nov. and Hydnoporia subtabacina sp. nov., and we report Hydnoporia rimosa for the first time in Korea. Phylogenetic analyses also support the recombination of Hymenochaete intricata and Hymenochaetopsis rigidula as Hydnoporia intricata comb. nov. and Hydnoporia rigidula comb. nov., respectively. By elucidating the phylogenetic relationships and morphological traits of Hydnoporia species from East Asia, this study contributes to a deeper understanding of the global diversity and phylogeny of the genus. [ABSTRACT FROM AUTHOR]

The genus Fuscoporia (Hymenochaetaceae, Basidiomycota) comprises poroid white-rot fungi characterized by dark brown hymenial setae, a dimitic hyphal system, and encrusted generative hyphae. Despite the ecological and commercial significance of Fuscoporia species, their identification has been challenging owing to their morphological overlap with other genera of Hymenochaetaceae and to the limited resolution of nuclear ribosomal DNA markers. With the advances in molecular research, Fuscoporia has been revised to include species from Inonotus sensu lato and Phellinus sensu lato, and 71 new species have been reported over the past decade. In Korea, a comprehensive taxonomic study elucidating the true diversity of Fuscoporia is yet to be conducted. Among the 11 Fuscoporia species reported in Korea, two were identified solely based on morphological characteristics, and four were identified based on nuclear ribosomal DNA regions, which have limited resolution for species identification in Fuscoporia. To investigate the current status of Fuscoporia species native to Korea, we conducted a phylogenetic study using four genetic markers (ITS + nrLSU + RPB2 + TEF1), along with morphological characteristics, and re-analyzed the GenBank records deposited from Korea. Ten Fuscoporia species were identified, including three previously unrecorded species. A detailed description of the unrecorded species and a list of proposed Korean names for all Fuscoporia species in Korea are provided. This study will guide further taxonomic and applied research of Fuscoporia by providing a species identification key and a verified multigenetic database, in addition to confirming the sequences in public database. [ABSTRACT FROM AUTHOR]