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Published: 2021-11-19

The genus Chionanthus (Oleaceae) in Cambodia, Laos and Vietnam

Department of Botany, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, 10000 Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, 10000 Hanoi, Vietnam.
Joint Russian-Vietnamese Tropical Scientific and Technological Center, Cau Giay, Hanoi, Vietnam. Department of Higher Plants, Biological Faculty, M.V. Lomonosov Moscow State University, 1, 12, Leninskie Gory, 119234 Moscow, Russia.
Eastern Indochina flora lectotypification Linociera new record plant diversity plant taxonomy Eudicots


A synopsis of the genus Chionanthus is presented for Cambodia, Laos and Vietnam. Thirteen species, including four species endemic to the area, are recognized. Amongst them, twelve species, including two endemic species, are found in Vietnam, and nine and five species are recorded in Laos and Cambodia, respectively. Several species are reported as new records for Laos and Vietnam. Chionanthus verticillatus is reduced to a synonym of C. robinsonii. Lectotypes are designated for eight names currently treated within the genus Chionanthus. The type, synonyms, citations of relevant regional taxonomic publications, brief taxonomic notes, data on ecology, phenology and distribution and a list of all available specimens from the studied area are provided for each taxon. A key for identification of the species of Chionanthus in Cambodia, Laos and Vietnam is also presented.


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