New species, Coelogyne sondangii (Orchidaceae), and a new national record, C. moi, in Vietnam

DOAN TRUNG VO; LEONID V. AVERYANOV; TATIANA V. MAISAK; VAN HUONG BUI; VAN CANH NGUYEN; MINH QUAN DANG; QUOC BAO NGUYEN; BA VUONG TRUONG

doi:10.11646/phytotaxa.559.2.9

Issue: Vol. 559 No. 2: 23 August 2022

Type: Article

Published: 2022-08-23

DOI: 10.11646/phytotaxa.559.2.9

Page range: 200-206

Abstract views: 45

PDF downloaded: 2

**New species, Coelogyne sondangii (Orchidaceae), and a new national record, C. moi, in Vietnam**

DOAN TRUNG VO⁺⁻
LEONID V. AVERYANOV⁺⁻
TATIANA V. MAISAK⁺⁻
VAN HUONG BUI⁺⁻
VAN CANH NGUYEN⁺⁻
MINH QUAN DANG⁺⁻
QUOC BAO NGUYEN⁺⁻
BA VUONG TRUONG⁺⁻

Faculty of Medicine, Van Lang University, 69/68 Dang Thuy Tram Street, 13th Ward, Binh Thanh district, Ho Chi Minh city, Vietnam

Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197376, St. Petersburg, Russia

Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam

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

School of Education, Can Tho University, 3/2 Street, Ninh Kieu District, Can Tho City, Vietnam

Institute of Tropical Biology Vietnam Academy of Science and Technology, 85 Tran Quoc Toan, District 3, Ho Chi Minh City, Vietnam

flora of Indochina new records new species orchids plant diversity plant taxonomy Monocots

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Abstract

Coelogyne sondangii is described as a species new for science. It allies to the group of former Panisea species with white flowers, namely C. albiflora, C. demissa, C. yunnanensis, C. panchaseensis, and C. sagittata, but differs from them in big flowers, narrowly spatulate lip with erose margin of lobes and irregularly denticulate column wings. In addition, C. moi is firstly recorded and documented for the flora of Vietnam, as well as new nomenclatural combination, Coelogyne sagittata (T.C.Hsu, H.C.Hung & Luu) Vuong & Aver., is proposed.

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