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Issue: Vol. 693 No. 4: 17 Mar. 2025
Type: Article
Published: 2025-03-17
DOI: 10.11646/phytotaxa.693.4.4
Page range: 287-296
Abstract views: 78
PDF downloaded: 7

Platanthera xizangensis (Orchidaceae, Orchideae), a new species from Southeast Xizang, China

Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plant, Ministry of Education/ College of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China. State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China.
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China. National Herbarium and Plant Laboratories, Lalitpur, Nepal.
Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plant, Ministry of Education/ College of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China. State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China.
Institute of Plateau Biology of Xizang Autonomous Region, Lhasa 850000
Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plant, Ministry of Education/ College of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China. China National Botanical Garden, Beijing, 100093, China.
new species orchid Motuo county China molecular phylogenetics Pan-Himalaya Monocots

Abstract

A new species, Platanthera xizangensis, discovered in Motuo county, Xizang Autonomous Region, China is described and illustrated. This species is close to P. milinensis by sharing greenish and spurless flowers, but is readily distinguished from the latter by presence of two subopposite leaves, lax subsecund inflorescence and lip with calli at base. Molecular phylogenetic analyses based on three DNA markers (nrITS, matK, rbcL) revealed that P. xizangensis is sister to P. milinensis with high support. Key to the Platanthera species in the Pan-Himalaya is also provided.

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How to Cite

YAN, SEN, TIRTHA RAJ PANDEY, HAIXIA WEN, XILONG WANG, XIQIANG SONG, and XIAOHUA JIN. 2025. “<em>Platanthera Xizangensis </Em>(Orchidaceae, Orchideae), a New Species from Southeast Xizang, China”. Phytotaxa 693 (4):287-96. https://doi.org/10.11646/phytotaxa.693.4.4.