subgenus is a well-known group that includes lethal s. However, the taxonomic
investigation of Korean species is still in progress. In this study, we collected specimens in Korea from 2009 to
2015 and classified 22 of them as subgenus based on the morphology. Phylogenetic analysis of the 22
specimens based on the internal transcribed spacers sequences identified 16 phylogenetic species which included three
undescribed species (, and ). Microscopic features of newly recorded species were photographed and line drawings were made. All collections cited here are deposited in the Herbarium Conservation
Center of the National Institute of Agricultural Sciences.