The discovery of a new for Siberia suboceanic nemoral lichen Nephromopsis ornata is reported. All collected specimens fully correspond to the morphological description of the species and differ from other representatives of the genus in the light-yellow color of the medulla. The new locality is more than 1500 km away from the previously known ones. The habitat conditions and associated species are described. Within the surveyed area, there are also other East Asian lichens with disjunctive ranges — Dolichousnea diffracta and Parmelia shinanoana. At present, this is the extreme northwestern locality of Nephromopsis ornata. Key words: biodiversity, biogeography, lichens, new records, Russia.