A peer-reviewed open-access journal PhytoKeys 138: 49–112 (2020) Checklist of Myanmar orchid flora 49 doi: 10.3897/phytokeys.138.36144 CHECKLIST http://phytokeys.pensoft.net Launched to accelerate biodiversity research An annotated checklist of Myanmar orchid flora Ye Lwin Aung1,4, Aye Thin Mu1, Mung Htoi Aung1, Qiang Liu3, Xiaohua Jin1,2 1 State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Scien- ces, Beijing 100093, China 2 Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar 3 Yunnan Forestry Technological College, Kunming, Yunnan, China 4 Forest Research Institute, Forest Department, Yezin, Nay Pyi Taw 05282, Myanmar Corresponding author: Xiaohua Jin (
[email protected]) Academic editor: Yun-Hong Tan | Received 13 May 2019 | Accepted 7 October 2019 | Published 10 January 2020 Citation: Aung YL, Mu AT, Aung MH, Liu Q, Jin X (2020) An annotated checklist of Myanmar orchid flora. In: Jin X-H, Xia N-H, Tan Y-H (Eds) Plant diversity of Southeast Asia-II. PhytoKeys 138: 49–112. https://doi.org/10.3897/ phytokeys.138.36144 Abstract Myanmar is situated in Southeast Asia, where species richness and diversity are very high. Myanmar orchid flora is very rich, but still poorly known because botanical explorations have sharply decreased in Myanmar since 1950. The present study provides a checklist of Myanmar orchid flora which includes 1040 species and 151 genera currently known from Myanmar, based on the herbarium specimens, literature and online data- bases. The number of species is increased by approximately 200 species more than that given in the checklist of Kress et al.