Rhizocarpon lavatum and R. reductum (Rhizocarpaceae, Ascomycota), two misunderstood taxa found in the Gorce Mts (Polish Carpathians)

摘要

Based on collections of P. Czarnota deposited in the GPN herbarium, 8 species of Rhizocarpon are reported from the Gorce Mountains. Two of them, R. lavatum and R. reductum are reported from the Gorce Mts for the first time, instead of erroneously determined R. obscuratum. This species was previously misinterpreted due to taxonomic and nomenclatoric uncertainties.