1. Department of Plant Taxonomy and Nature Conservation, The University of Gdańsk, Gdańsk, Poland
2. Department of Biodiversity Research, Global Change Research Institute AS CR, Brno, Czech Republic
3. Unaffiliated, Ciudad de Guatemala, Guatemala
4. Department of Plant Cytology and Embryology, The University of Gdańsk, Gdańsk, Poland
5. Department of Molecular Evolution, The University of Gdańsk, Gdańsk, Poland