1. College of Liberal Arts and Sciences, Mie University , Mie , Japan
2. Botanical Gardens, Osaka City University , Osaka , Japan
3. Kamchatka Branch of Pacific Institute of Geography FEB RAS , Petropavlovsk-Kamchatsky , Russia
4. Federal Scientific Center of the East Asia Terrestrial Biodiversity FEB RAS , Russia
5. Sakhalin Botanical Garden FEB RAS , Russia
6. Botanical Garden-Institute FEB RAS , Russia
7. State Nature Reserve Kurilskiy , Russia
8. Gifu Academy of Forest Science and Culture , Gifu , Japan