sp. nov. and , Two New Earth Tongues from South Korea.

During an investigation of Korean Ascomycetes in 2023, we found two undescribed species from South Korea. We analyzed them using a combined approach, including morphological and phylogenetic analyses of the rDNA regions (internal transcribed spacer and large subunit). The two species were identified to belong to the genus ; the species and a new species named sp. nov. The phylogenetic tree constructed using the ITS region showed that is closely related to . These species are distinguishable by certain morphological characteristics, particularly the size and septae of ascospores. Morphologically, is related to , but it is distinguishable by the morphological characteristics of paraphyses as well as ITS sequences. In this study, the descriptions, photographs, and phylogenetic relationships of these species are presented.