biostudies-literatureLee BGKorean National Arboretum392https://www.ebi.ac.uk/biostudies/studies/S-EPMC9028879biostudies-literatureUnknown8(4)<i>Psoroglaena humidosilvae</i> Lee is described as a new lichen species from a wetland forest in South Korea. The new species is distinct from <i>P. stigonemoides</i> (Orange) Henssen by little projections locally present on the thallus; smaller, paler, and globose perithecia; smaller asci; and smaller ascospores generally 3-septate. Molecular analyses employing internal transcribed spacer (ITS), mitochondrial small subunit (mtSSU), and nuclear large subunit ribosomal RNA (LSU) sequences strongly support <i>P. humidosilvae</i> as a nonidentical species in the genus <i>Psoroglaena</i>. A surrogate key is provided to assist in the identification of all 22 species of <i>Psoroglaena</i>.Journal of fungi (Basel, Switzerland)A New Lichenized Fungus, <i>Psoroglaena humidosilvae</i>, from a Forested Wetland of Korea, with a Taxonomic Key to the Species of <i>Psoroglaena</i>.PMC9028879KNA-202003127AF-00Lee BGHur JSfalseA New Lichenized Fungus, <i>Psoroglaena humidosilvae</i>, from a Forested Wetland of Korea, with a Taxonomic Key to the Species of <i>Psoroglaena</i>.<i>Psoroglaena humidosilvae</i> Lee is described as a new lichen species from a wetland forest in South Korea. The new species is distinct from <i>P. stigonemoides</i> (Orange) Henssen by little projections locally present on the thallus; smaller, paler, and globose perithecia; smaller asci; and smaller ascospores generally 3-septate. Molecular analyses employing internal transcribed spacer (ITS), mitochondrial small subunit (mtSSU), and nuclear large subunit ribosomal RNA (LSU) sequences strongly support <i>P. humidosilvae</i> as a nonidentical species in the genus <i>Psoroglaena</i>. A surrogate key is provided to assist in the identification of all 22 species of <i>Psoroglaena</i>.2022-01-01T00:00:00Z2022 Apr2025-04-05T11:03:18.945Z2025-04-05T11:03:18.945ZS-EPMC90288793544862310.3390/jof8040392