[in Russian with English abstract: ] New data on the lichen flora of the North Ossetia Nature Reserve from the cluster “Kartsa” are provided. This cluster is located in Kartsinskii Range slopes, Central Caucasus. The specimens of lichens and lichenicolous fungi were collected near the top of Ol’dukhankhokh Mt. in cluster “Kartsa” in June 2016. In total, 115 lichen species and 15 lichenicolous fungi were recorded. Among them, 128 species are new to the cluster “Kartsa”. Of these, 77 species are new for the North Ossetia Nature Reserve, including 71 species new for the Republic of North Ossetia — Alania, 36 species new for the Central Caucasus, and 5 species new for the Caucasus. The genus Poeltinula and three species (Arthonia punctella, Opegrapha hellespontica, Poeltinula cerebrina) are reported for the first time from Russia. The representative specimens of new for Russia and rare species are kept in the Lichenological Herbarium of the Komarov Botanical Institute RAS (LE). Keywords: Arthonia punctella, Opegrapha hellespontica, Poeltinula cerebrina, lichenicolous fungi, lichens, new records, Central Caucasus, Russia.