1. Institute of Botany 210, University of Hohenheim, Stuttgart, Germany;
2. Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, Tennessee, USA;
3. Biodiversity and Climate Research Centre (BiK-F), Senckenberg Gesellschaft für Naturforschung and Goethe University, Department of Biological Sciences, Institute of Ecology, Evolution and Diversity, Frankfurt am Main, Germany;
4. Department of Botany, Faculty of Science, Palacký University, Olomouc, Czech Republic