New records of rare and protected lichens in the Ryazan region (Russia)

Monitoring studies of the last 10 years devoted to identifying the condition of rare and vulnerable lichen species in Ryazan Region allowed clarifying their distribution in the region and their status in the Red Data Book. This article provides information on 53 new locations of 26 rare lichen species, 14 of which were first recommended for inclusion in the main list of protected species for the 3rd edition of the Red Data Book of Ryazan Oblast.