Unrecorded liverwort species from Korean flora IV: new data on Riccia L. (Marchantiophyta) from Jeju UNESCO World Natural Heritage

While conducting a floristic study of Korean bryophytes, we discovered two unrecorded species collected from dirt roads near Manjanggul Lava Tube (Jeju UNESCO World Natural Heritage) in Korea. Riccia beyrichiana Hampe and Riccia bifurca Hoffm. are reported for the first time in Korea, as well as described and illustrated based on Korean material here.