1. Department of Botany and Zoology, Faculty of Science Masaryk University Brno Czech Republic
2. Department of Paleoecology, Institute of Botany The Czech Academy of Sciences Brno Czech Republic
3. Department of Plant Biology, Faculty of AgriSciences Mendel University in Brno Brno Czech Republic
4. Department of Botany, Faculty of Science University of South Bohemia České Budějovice Czech Republic