First Report of the Lichen Species, Heterodermia flabellata (Fee) D. D. Awasthi, and Updated Taxonomic Key of Heterodermia in South Korea

Heterodermia flabellata (Fee) D. D. Awasthi was found as a new lichen record in Jeju Island of South Korea in 2012. A detailed taxonomic description and comments are provided for the taxa. An updated key for all recorded species of Heterodermia from South Korea is given.