New records of arctic-alpine lichens from the Russian Far East

New localities are given for 19 lichen species from the Russian Far East. Aspicilia asteria and A. umbrinella are reported for Russia for the first time. Buellia lacteoidea, B. ocellata, Dermatocarpon polyphyllizum, Lecanora reagens, and Miriquidica pycnocarpa are newly reported for the Russian Far East. Buellia lacteoidea is reported for the second time from Eurasia and Russia. Lecanora argentea, Lecidea promiscua, Miriquidica leucophaea, Placopsis cribellans, Rhizocarpon saana.nse and Rimularia badioatra are recorded for the first time for the southern Far East. Rhizocarpon polycarpum is a new species for Primorye Territory, and Acarospora veronensis and Rimularia limborina are new for Sakhalin. Lecanora gangaleoides, Umbilicaria hyperborea, and U. herrei are confirmed for Sakhalin. Characteristic features of the species, including those that distinguish them from their closest relatives, and species' distribution and ranges are described. Aspicilia pseudovulcanica S.Y.Kondr. et al. is synonymized with A. asteria Hue, and A. submamillata S.Y.Kondr. et al. is synonymized with A. umbrinella Hue.