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Issue: Vol. 681 No. 1: 8 Jan. 2025
Type: Article
Published: 2025-01-08
DOI: 10.11646/phytotaxa.681.1.3
Page range: 20-54
Abstract views: 111
PDF downloaded: 6

New orchids in the flora of Vietnam X (Orchidaceae, Orchidoideae, tribe Orchideae, Epidendroideae, tribes Gastrodieae, Arethuseae, Cymbidieae, and Vandeae)

Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Street, 197022, St. Petersburg, Russia
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LEONID V. AVERYANOV

 

 

Institute of Applied Technology, Thu Dau Mot University, No. 6, Tran Van On Street, Phu Hoa Ward, Thu Dau Mot City, Binh Duong Province, Vietnam
Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85, Tran Quoc Toan Street, District 3, Ho Chi Minh City, Vietnam
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam.
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam.
Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 321, Huynh Thuc Khang Street, Hue City, Thua Thien Hue Province, Vietnam
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam.
Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Street, 197022, St. Petersburg, Russia
Vietnam National University of Forestry, Xuan Mai, Chuong My, Ha Noi, Vietnam
endemism nature conservation new national records new species plant diversity plant taxonomy Monocots

Abstract

The paper presents new data on the orchid diversity of Vietnam obtained mainly during the fieldwork of 2023–2024, as well as a result of investigation of the herbarium and garden collections of Russia and Vietnam. It includes five species new to science, namely Cleisostoma truongquanii, Cymbidium bavuongii, Hemipilia uniflora, Micropera vietnamensis, Robiquetia binhii, and one variety, Biermannia averyanovii var. micrantha. Six species, Biermannia brachystachys, Cleisostoma nangongense, Coelogyne cumingii, Eulophia bicallosa, Gastrodia fontinalis, and Schoenorchis seidenfadenii are reported for Vietnam at first. For each of the studied taxa, their types, relevant synonyms, studied specimens, ecology and phenology (within Vietnam), distribution, preliminarily assessed conservation status, brief taxonomic notes and illustrations are provided. For the newly described taxa, morphological descriptions and notes on etymology are included. In addition, new nomenclature combinations, Panisea lecongkietii (Vuong, Aver. & Q.T.Truong) Aver., Biermannia brachystachys (Schltr.) Aver., Thrixspermum arunachalensis (A.N.Rao) Aver., and Thrixspermum jainiana (S.N.Hegde & A.N.Rao) Aver. are proposed. Based on available literature data and currently presented data the orchid flora of Vietnam includes 1382 species belonging to 184 genera.

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