1. Department of Botany and Plant Physiology, Siedlce University of Natural Science and Humanities, Siedlce, 08-110 Siedlce, Poland
2. Department of Plant Taxonomy, A. Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland
3. Department of Environmental Studies and Biological Education, Siedlce University of Natural Science and Humanities, 08-110 Siedlce, Poland;