1. Department of Phytology, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia;
2. Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic;
3. Laboratory of Palaeoecology, Institute of Botany, The Czech Academy of Sciences, Brno, Czech Republic;
4. Institute of Botany, Plant Science and Biodiversity Center, Bratislava, Slovakia;
5. Department of Soil Science, Faculty of Sciences, Comenius University, Bratislava, Slovakia