[1] Russian Acad Sci, Komarov Bot Inst, 2 Prof Popov Str, St Petersburg 197376, Russia
[2] Joint Russian Vietnamese Trop Sci & Technol Ctr, Hanoi, Vietnam
[3] Moscow MV Lomonosov State Univ, Fac Biol, Dept Higher Plants, 1,12,Leninskie Gory, Moscow 119234, Russia
[4] Kaluga State Univ, 26 Stepan Razin Str, Kaluga 0248023, Russia
[5] Vietnam Acad Sci & Technol, Inst Ecol & Biol Resources, 18 Hoang Quoc Viet Rd, Hanoi 100000, Vietnam
[6] Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
[7] Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Yezin 05282, Nay Pyi Taw, Myanmar