1. Department of Forest Botany , Dendrology and Geobiocoenology, , Zemědělská 1, 613 00 Brno , Czech Republic
2. Mendel University in Brno , Dendrology and Geobiocoenology, , Zemědělská 1, 613 00 Brno , Czech Republic
3. Department of Vegetation Ecology, Institute of Botany, The Czech Academy of Sciences , Lidická 25/27, 60200 Brno , Czech Republic