[1] Vietnam Acad Sci & Technol, Inst Ecol & Biol Resources, 18 Hoang Quoc Viet, Hanoi 10072, Vietnam
[2] Grad Univ Sci & Technol, Vietnam Acad Sci & Technol, 18 Hoang Quoc Viet, Hanoi 10072, Vietnam
[3] Agharkar Res Inst, Biodivers Palaeobiol Grp, GG Agarkar Rd, Pune 411004, India
[4] Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, South China Bot Garden, Guangzhou 510650, Peoples R China