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Issue: Vol. 718 No. 4: 24 Sept. 2025
Type: Article
Published: 2025-09-24
DOI: 10.11646/phytotaxa.718.4.3
Page range: 283-290
Abstract views: 419
PDF downloaded: 12

Taxonomic studies on Begonia (Begoniaceae) in Myanmar Ⅳ: a new species, two new records, and two lectotypifications

Center for Integrative Conservation and Yunnan Key Laboratory for the Conservation of Tropical Rainforests & Asian Elephants, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; University of Chinese Academy of Sciences, Shijingshan District, Beijing 100049, China; Yunnan International Joint Laboratory for the Conservation and Utilization of Tropical Timber Tree Species, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
Chit Win Sein Farm, Hpa-an District, Kayin State, 13011, Myanmar
Center for Integrative Conservation and Yunnan Key Laboratory for the Conservation of Tropical Rainforests & Asian Elephants, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Yunnan International Joint Laboratory for the Conservation and Utilization of Tropical Timber Tree Species, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
Begonia sect. Lauchea biodiversity citizen science lectotype Eudicots

Abstract

Begonia hpaanensis, a new species from Kayin State, Myanmar, is described and illustrated herein. Based on its diagnostic morphological traits, including tuberous habit, subsymmetric leaves, a bilocular ovary with axillary placentation, two placental branches per locule, and bifid styles, this new species is placed in Begonia sect. Lauchea (Klotzsch) A.DC. Furthermore, two species are newly recorded in Myanmar and documented herein: B. saxifragifolia Craib (sect. Diploclinium (Lindl.) A.DC.) and B. phutthaii M.Hughes (sect. Apterobegonia Warb.). In addition, lectotypes are formally designated for B. adenopoda Lem. (sect. Lauchea) and B. saxifragifolia as part of this taxonomic study.

References

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How to Cite

Maw, M.B., Paing, C.S. & Yu, W.-B. (2025) Taxonomic studies on Begonia (Begoniaceae) in Myanmar Ⅳ: a new species, two new records, and two lectotypifications. Phytotaxa 718 (4): 283–290. https://doi.org/10.11646/phytotaxa.718.4.3