1. Department of Forestry, Faculty of Geography, Uzhhorod National University, 14, Universytetska Str., 88000 Uzhhorod, Ukraine
2. Department of Botany, Faculty of Biology, Uzhhorod National University, 32, Voloshyna Str., 88000 Uzhhorod, Ukraine
3. Department of Systematics and Floristic of Vascular Plants, M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, 01004 Kyiv, Ukraine
4. Fodor I. Scientific Researcher Center, Ferenc Rákóczi II Transcarpathian Hungarian College of Higher Education, 6, Kossuth Sq., 90200 Beregove, Ukraine