r.ochyra@botany.pl
vitezslav.plasek@osu.cz
h.bednarek@botany.pl
© 2018 Ryszard Ochyra, Vítězslav Plášek, Halina Bednarek-Ochyra, published by Silesian Museum in OpavaThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.