New and rare species of the lichens from the Laschipse river valley, Ritsa relict national park (Abkhazia)

We provide the data on 61 species of lichnes from Ritsa Relict National Park. 10 of them are new for the Park, namely Amandinea punctata, Arthonia spadicea, Athallia pyracea, Evernia prunastri, Lecanora chlarothera, Leptogium cyanescens, Parmeliella triptophylla, Peltigera praetextata, Platismatia glauca, Rinodina pyrina. 13 species are new for Abkhazia: Bryoria capillaris, B. nadvornikiana, Calicium viride, Cladonia fimbriata, Collema nigrescens, Hypogymnia bitteri, H. farinacea, H. vittata, Lecanora pulicaris, Lecidella euphoria, Leptogium saturninum, Micarea denigrata, Rinodina septentrionalis. Two species ( Fuscopannaria mediterranea, Leptogium teretiusculum ) are new for Transcaucasus and four species ( Bryoria americana, Graphis apertella, Hypogymnia incurvoides, H. subobscura ) are new for the Caucasus.