BRYOBIONTA ON CLIFFS OF BUBNYSCHE TRACT (SKOLE BESKYDY)

Abstract

Bryoflora of sandstone cliffs of Bubnysche tract (State natural monument “Skeli Dovbusha”, regional landscape park „Polyanitsky”, Skole Beskydy Mountains, The Ukrainian Carpathians) was studied. Its taxonomical and geographical structure and ecological features were shown. It was found that bryoflora of sandstone cliffs of Bubnysche tract is composed of 51 species belonging to 40 genera, 26 families of 4 classes and 2 divisions − Marchantiophyta (8 species) та Bryophyta (43 species) of superdivision Bryobionta. Bryoflora dominated by Dicranaceae, Polytrichaceae, Pottiaceae, Brachytheciaceae, Hypnaceae, Neckeraceae, Leucobryaceae and Jungermanniaceae families (54.9% of total number of species), that corresponded to zonal variant of the bryoflora of the Ukrainian Carpathians. By geographical distribution, bryoflora elements is composed of boreo-nemoral (80.4%), by ecological characteristics – mainly helio-sciophylic (45.1%), mesophylic (56%) and mesotermophylic (74%), due to a geographi­cal location of Bubnysche tract in beech forest altitudinal belt with seasonally variable lighting mode, temperate continental climate, and normal or excessive moisture mode.