New records and noteworthy lichen species from Sakhalin and Kurils, Far East of Russia

Nine new records of lichens from Sakhalin and Kurils are presented including Caloplaca monacensis – new to the Russian Far East, Phaeophyscia constipata and Rostania ceranisca – new to the south of the Russian Far East, Massalongia cornosa and Mycoblastus alpinus – new to the Sakhalin Region, Heterodermia diademata – new to Kuriles, Bilimbia tetramera, Fissurina inabensis and Coenogonium pineti – new to Kunashir Island. For noteworthy species, information on distribution, ecology, and diagnostic traits of similar species is provided. Most of all reported species, namely Bilimbia tetramera, Caloplaca monacensis, Massalongia cornosa, Mycoblastus alpinus, Phaeophyscia constipata and Rostania ceranisca, are considered to be rare in the region.