First Korean Records of Scutellinia sinosetosa and S. subhirtella (Pezizales, Pyronemataceae) Based on Integrative Taxonomy

초록

Recently added new species and taxonomic re-evaluations of previously recorded ones have warranted a revision of Scutellinia specimens deposited in Korea. By applying an integrative taxonomic framework to Scutellinia specimens curated at the Korea National Arboretum (KH), we recorded two species previously unreported in Korea, namely Scutellinia sinosetosa and S. subhirtella. Morphological assessment covered the macroscopic traits of apothecia as well as microscopic characteristics, including asci, paraphyses, marginal hairs, ascospore size, and ornamentation. Molecular evidence was obtained from internal transcribed spacer (ITS) and large subunit (LSU) rDNA sequences; phylogenetic analyses placed the Korean specimens in strongly supported clades alongside authenticated reference material, confirming their identities. S. sinosetosa is distinguished by small apothecia and low, reticulate ascospore ornamentation, whereas S. subhirtella is characterized by medium-sized, ellipsoid ascospores densely covered with discrete, fine verrucae. These findings represent the first confirmed records of both species in Korea, extend the known distribution of Scutellinia on the Korean Peninsula, and provide ITS/LSU barcode data to facilitate reliable molecular identification in future studies.

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