New and rare lichens of the Yaroslavl’ region (Russia)

20 lichen species ( Bacidia incompta, B. subincompta, Bacidina chloroticula, B. delicata, Biatora helvola, Calicium pinastri, Cladonia bacilliformis, C. foliacea, Leptorhaphis epidermidis, Micarea elachista, M. micrococca, Myriolecis persimilis, Ochrolechia arborea, Peltigera neopolydactyla, Pycnora praestabilis, Rinodina efflorescens, Ropalospora viridis, Sarea difformis, Thrombium epigaeum and Trapeliopsis viridescens ) are reported for the Yaroslavl’ Region (Russia) for the first time. Distribution of these species in the Central Russia is discussed. New localities of rare and Red Data Book lichens in the Region are given.