1. The Main Botanical Garden of Russian Academy of Sciences; Botanicheskaya 4; Moscow; 127276; Russia
2. Nees-Institute for Biodiversity of Plants; University of Bonn; Meckenheimer Allee 170; 53115; Bonn; Germany
3. Swedish Museum of Natural History; Department of Cryptogamic Botany; Box 50007; SE-10405; Stockholm; Sweden