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Issue: Vol. 715 No. 2: 19 Aug. 2025
Type: Article
Published: 2025-08-19
DOI: 10.11646/phytotaxa.715.2.3
Page range: 129-141
Abstract views: 680
PDF downloaded: 15

Oreocharis sanglocii (Gesneriaceae), a new species from Hoang Lien Son Range, north-western Vietnam

Institute of Biology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay, 10072, Hanoi, Vietnam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay, 10072, Hanoi, Vietnam
Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Street, 197022, St. Petersburg, Russia
Institute of Innovation in Pharmaceutical and Healthcare Food, Thu Dau Mot University, No. 6, Tran Van On Street, Phu Hoa Ward, Thu Dau Mot City, Binh Duong Province, Vietnam
Department of Higher Plants, Biological Faculty, M.V. Lomonosov Moscow State University, 1, 12, Leninskie Gory, 119234, Moscow, Russia; Joint Russian-Vietnamese Tropical Scientific and Technological Center, 63, Nguyen Van Huyen Street, Cau Giay, 122000, Hanoi, Vietnam
Department of Higher Plants, Biological Faculty, M.V. Lomonosov Moscow State University, 1, 12, Leninskie Gory, 119234, Moscow, Russia; Joint Russian-Vietnamese Tropical Scientific and Technological Center, 63, Nguyen Van Huyen Street, Cau Giay, 122000, Hanoi, Vietnam
Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, CN-541006, China; Gesneriad Committee of China Wild Plant Conservation Association (GC), National Gesneriaceae Germplasm Resources Bank of GXIB (NGGRB), Gesneriad Conservation Center of China (GCCC), No. 85, Yanshan Town, Guilin, CN-541006, China
College of Forestry, Central South University of Forestry and Technology, 410004, Changsha, China
Herbarium of Taiwan Forestry Research Institute, Taiwan Forestry Research Institute, No. 53, Nan-Hai Road, 100, Taipei, Taiwan
Bat Xat Nature Reserve endemism flora of Vietnam Lao Cai Province plant diversity plant taxonomy Eudicots

Abstract

Oreocharis sanglocii, a new species discovered in Hoang Lien Son Range of north-western Vietnam, is described and illustrated. The new species is characterized by leaf blade much longer than petiole and distinctly longer than wide, many-flowered inflorescence, light yellow to almost white corolla with purple-maroon markings at throat, narrow corolla tube constricted at throat, stamens with distally pubescent filaments and free (and not coherent) anthers, glabrous pistil and capsule, and peltate stigma. Oreocharis sanglocii is most close to O. blepharophylla, being readily distinguishable from it by more numerous secondary veins of leaf blade, inflorescence with up to 20 flowers, yellowish outer surface of corolla tube, hairy stamen filaments, and free anthers. The new species is also similar to the yellow-flowered O. tsaii and O. zhenpingensis. Available information on the species phenology, ecology and conservation status is presented, along with the taxonomic notes. This discovery is in line with the idea that within the territory of Vietnam Oreocharis is most diverse in the northern areas. It brings the number of species of the genus documented from Vietnam to twelve.

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How to Cite

Nguyen, K.S., Averyanov, L.V., Nguyen, van C., Nuraliev, M.S., Lyskov, D.F., Wen, F., Wu, L. & Lin, C.W. (2025) Oreocharis sanglocii (Gesneriaceae), a new species from Hoang Lien Son Range, north-western Vietnam. Phytotaxa 715 (2): 129–141. https://doi.org/10.11646/phytotaxa.715.2.3