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Issue: Vol. 598 No. 1: 19 May 2023
Type: Article
Published: 2023-05-19
DOI: 10.11646/phytotaxa.598.1.4
Page range: 59-68
Abstract views: 142
PDF downloaded: 7

The review of Bulbophyllum section Tripudianthes (Orchidaceae) in the flora of Vietnam with the description of new species, B. viridipallidum

Institute of Applied Technology, Thu Dau Mot University No.06, Tran Van On Street, Phu Hoa Ward, The Dau Mot City, Binh Duong Province, Vietnam.
Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197376, St. Petersburg, Russia.
Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197376, St. Petersburg, Russia.
Institute of Applied Technology, Thu Dau Mot University No.06, Tran Van On Street, Phu Hoa Ward, The Dau Mot City, Binh Duong Province, Vietnam.
Institute of Applied Technology, Thu Dau Mot University No.06, Tran Van On Street, Phu Hoa Ward, The Dau Mot City, Binh Duong Province, Vietnam.
Institute of Applied Technology, Thu Dau Mot University No.06, Tran Van On Street, Phu Hoa Ward, The Dau Mot City, Binh Duong Province, Vietnam.
Institute of Applied Technology, Thu Dau Mot University No.06, Tran Van On Street, Phu Hoa Ward, The Dau Mot City, Binh Duong Province, Vietnam.
Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam. Institute of Tropical Biology Vietnam Academy of Science and Technology, 85 Tran Quoc Toan, District 3, Ho Chi Minh City, Vietnam.
Number 199/128 the connect 9 Kaset-Navamin rd. Klong Kum, Bueng Kum, Bangkok 10240.
Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam. Institute of Tropical Biology Vietnam Academy of Science and Technology, 85 Tran Quoc Toan, District 3, Ho Chi Minh City, Vietnam.
B. wallichii B. refractum endemism orchids plant diversity plant taxonomy Monocots

Abstract

The paper provides a short annotated taxonomic review of Bulbopyllum sect. Tripudianthes from the flora of Vietnam along with a species-level key for identification. The section in Vietnam includes five species, one of which is a new species for science and described under the name, B. viridipallidum. The new species was found recently from Kon Tum Province of southern Vietnam. It is similar to B. kanburiense, B. khaoyaiense, and B. wallichii, but clearly differs by having pale greenish lateral sepals and two rounded calli at the lip base fused distally into a single prominent longitudinal keel; this is inflated at the lip apex into prominent half ovoid callus. In addition, we confirm the occurrence of B. wallichii in the flora of Vietnam. The taxonomic description, data on distribution, ecology, phenology, proposed conservation status, taxonomic notes, and the comparison of the new species with morphologically similar species are reported.

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