1. Naturalis Biodiversity Center P.O. Box 9517 2300 RA Leiden The Netherlands
2. Leiden University P.O. Box 9500 2300 RA Leiden The Netherlands
3. Lomonosov Moscow State University Biological Faculty Moscow 119234 Russia
4. Botanical Garden‐Institute of the Far Eastern Branch Russian Academy of Sciences Vladivostok 690024 Russia
5. Tsitsin’ Main Botanical Garden of Russian Academy of Sciences Moscow 127276 Russia
6. Ericastraat 22, 1214 EL Hilversum The Netherlands