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Issue: Vol. 773 No. 1: 4 Sept. 2026
Type: Article
Published: 2026-09-04
DOI: 10.11646/phytotaxa.773.1.6
Page range: 69-78
Abstract views: 33
PDF downloaded: 2

Two new species and taxonomic notes of Begonia (Begoniaceae) for the flora of China from Guangxi

Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla; Yunnan 666303; China
Enshi Gesneriad and Begonia Nursery Co.; Ltd.; Enshi; Hubei 445000; China
Beijing Florascape Co.; Ltd.; Beijing 101300; China
Nanning Botanical Garden; Nanning; Guangxi 530002; China; Nanning Garden Expo Park Management Center (Nanning Institute of Tropical Botany); Nanning; Guangxi 530299; China
Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla; Yunnan 666303; China
Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla; Yunnan 666303; China
Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla; Yunnan 666303; China
Eudicots Begonia China Guangxi new record new taxon taxonomy

Abstract

Begonia renkunii and B. tianyangensis, two new species of B. sect. Coelocentrum from Guangxi, China, are described and illustrated. These species resemble B. rhynchocarpa and B. rhytidophylla respectively, but can be distinguished by several characters. In addition, B. calciphila is reported as a new record for the flora of China, and B. fangchengensis is synonymized under B. shaoqingii.

References

  1. Chen, W.H., Radbouchoom, S., Nguyen, H.Q., Nguyen, H.T., Nguyen, K.S. & Shui, Y.M. (2018) Seven new species of Begonia (Begoniaceae) in Northern Vietnam and Southern China. PhytoKeys 94: 65–85. https://doi.org/10.3897/phytokeys.94.23248
  2. Chung, K.F., Leong, W.C., Rubite, R.R., Rimi, R., Kiew, R., Liu, Y. & Peng, C.I. (2014) Phylogenetic analyses of Begonia sect. Coelocentrum and allied limestone species of China shed light on the evolution of Sino-Vietnamese karst flora. Botanical Studies 55 (1): 1. https://doi.org/10.1186/1999-3110-55-1
  3. Doorenbos, J., Sosef, M.S.M. & de Wilde, J.J.F.E. (1998) The sections of Begonia, including descriptions, keys and species lists (studies in Begoniaceae). Wageningen Agricultural University, Wageningen.
  4. Gu, C.Z., Peng, C.I. & Turland, N.J. (2007) Begoniaceae. In: Wu, C.Y. & Raven, P.H. (Eds.) Flora of China. Science Press, Beijing, pp. 153–207.
  5. Guan, S.K., Tian, D.K., Zhou, J.Y., Huang, Z.W., Yan, H.X., Tao, D.Y., Song, Q. & Lu, J.S. (2025) Begonia wumingensis, a new species of Begonia (sect. Coelocentrum) with long rhizomes from Central Guangxi of China. Taiwania 70 (4): 626–630. https://doi.org/10.6165/tai.2025.70.626
  6. Hu, P.T., Huang, Y.N., Zhang, M.N., Chen, B.X., Huang, S.S., Li, R.K., Wang, W.W. & Feng, X.X. (2024) A new species in Begonia sect. Diploclinium (Begoniaceae) from Guangxi, South China. PhytoKeys 249: 277–285. https://doi.org/10.3897/phytokeys.249.133724
  7. Hu, R.C., Zhou, J.Y., Zhao, Z.Y., Lai, K.D., Wu, Y.N. & Tian, D.K. (2025) Two new tuberous species of Begonia (Begoniaceae) from Guangxi, China. PhytoKeys 256: 119–129. https://doi.org/10.3897/phytokeys.256.145725
  8. Hughes, M., Moonlight, P., Jara, A., Tebbitt, M., Wilson, H. & Pullan, M. (2015–) Begonia Resource Centre. Available from: http://padme.rbge.org.uk/begonia/ (accessed 26 January 2026)
  9. iBegonia (2024) The 2023–2024 Report of Begonia Diversity in China [In Chinese]. Available from: [https://mp.weixin.qq.com/s/O86WDI8xFDl4Vq8uDxazkA]
  10. Irmscher, E. (1939) Die Begoniaceen Chinas und ihre Bedeutung für die Frage der Formbildung in polymorphen Sippen. Mitteilungen aus dem Institut für allgemeine Botanik in Hamburg 10: 431–557.
  11. IUCN Standards and Petitions Committee (2024) Guidelines for using the IUCN Red List categories and criteria. ver. 16. Prepared by the Standards and Petitions Committee. Available from: https://www.iucnredlist.org/resources/redlistguidelines (accessed 20 January 2026)
  12. Ku, S.M., Peng, C.I. & Liu, Y. (2004) Notes on Begonia (sect. Coelocentrum, Begoniaceae) from Guangxi, China, with the report of two new species. Botanical Bulletin of Academia Sinica 45 (4): 353–367.
  13. Linnaeus, C. (1753) Species Plantarum 2. Laurentius Salvius, Stockholm, 1056 pp.
  14. Liu, Y., Tseng, Y.H., Yang, H.A., Hu, A.Q., Xu, W.B., Lin, C.W., Kono, Y., Chang, C.C., Peng, C.I. & Chung, K.F. (2020) Six new species of Begonia from Guangxi, China. Botanical Studies 61: 21. https://doi.org/10.1186/s40529-020-00298-y
  15. Peng, C.I., Yang, H.A., Kono, Y., Jung, M.J. & Nguyen, T.H. (2015) Four new species of Begonia (Begoniaceae) from Vietnam: B. abbreviata, B. calciphila, B. sphenantheroides and B. tamdaoensis. Phytotaxa 222 (2): 83–99. https://doi.org/10.11646/phytotaxa.222.2.1
  16. Shui, Y.M. & Chen, W.H. (2005) New data of sect. Coelocentrum (Begonia) in Begoniaceae. Acta Botanica Yunnanica 27 (4): 355–374.
  17. Shui, Y.M., Chen, W.H., Peng, H., Huang, S.H. & Liu, Z.W. (2019) Taxonomy of Begonias. Yunnan Science and Technology Press, Kunming, pp. 145–150.
  18. Shui, Y.M., Peng, C.I. & Wu, C.Y. (2002) Synopsis of the Chinese species of Begonia (Begoniaceae), with a reappraisal of sectional delimitation. Botanical Bulletin of Academia Sinica 43: 313–327.
  19. Tian, D.K., Chen, Z.L., Li, C.H., Wu, Y.N. & Xiao, Y. (2025) Three new species of Begonia sect. Platycentrum from Southwestern China. Gardens’ Bulletin Singapore 77 (1): 121–132. https://doi.org/10.26492/gbs77(1).2025-09
  20. Tian, D.K., Zhou, J.Y., Xiao, Y., Wu, Y.N., Hu, R.C., Dong, X. & Guan, S.K. (2024) Three new species of Begonia (sect. Platycentrum) from South China. Phytotaxa 675 (2): 147–157. https://doi.org/10.11646/phytotaxa.675.2.5
  21. Wang, W.G., Li, R.K., Xi, H.C., Ma, X.D. & Shen, J.Y. (2025a) Taxonomic studies on Begonia (Begoniaceae) in Yunnan I: Two new species from southeastern Yunnan, China. Taiwania 70 (3): 453–458. https://doi.org/10.6165/tai.2025.70.453
  22. Wang, W.G., Yang, S., Li, R.K., Xi, H.C., Shen, J.Y. & Xu, W.B. (2025b) Begonia kuofangii, a new species of Begonia sect. Coelocentrum (Begoniaceae) from karst area of southwestern Guangxi, China. Taiwania 70 (4): 622–625. https://doi.org/10.6165/tai.2025.70.622
  23. Xi, H.C., Li, R.K., Hu, Y.C., Shen, J.Y., Liu, S.H. & Wang, W.G. (2025a) Begonia lucivenia, a new species of Begonia sect. Coelocentrum (Begoniaceae) from Guangxi, China. Taiwania 70 (4): 689–693. https://doi.org/10.6165/tai.2025.70.689
  24. Xi, H.C., Li, R.K., Wang, Z.X., Lang, X.A., Wang, W.G. & Tian, D.K. (2025b) Begonia chunxiuensis, a new species of Begonia sect. Platycentrum (Begoniaceae) from Guangxi, China. Nordic Journal of Botany 2025: e04840. https://doi.org/10.1002/njb.04840
  25. Xi, H.C., Nong, F.Y., Shen, J.Y., Ma, X.D., Jiang, L.J. & Wang, W.G. (2025c) Begonia pingxiangensis, a new species of Begonia sect. Coelocentrum (Begoniaceae) from Guangxi, China. Taiwania 70 (1): 1–3. https://doi.org/10.6165/tai.2025.70.1
  26. Xi, H.C., Zhou, J.Y., Nong, F.Y., Li, R.K., Shen, J.Y., Tian, D.K. & Wang, W.G. (2025d) Begonia fuyangii, a new species of Begonia sect. Coelocentrum (Begoniaceae) from Guangxi, China. Phytotaxa 730 (1): 82–88. https://doi.org/10.11646/phytotaxa.730.1.6
  27. Zhou, J.Y., Guan, S.K., Yan, H.X., Tao, D.Y. & Tian, D.K. (2025) Begonia subfiliformis, a new species of Begonia (sect. Coelocentrum) from Guangxi of South China. Taiwania 70 (3): 377–381. https://doi.org/10.6165/tai.2025.70.377

How to Cite

Xi, H.-C., Li, R.-K., Wang, Z.-X., Lang, X.-A., Shen, J.-Y., Shi, J.-P. & Wang, W.-G. (2026) Two new species and taxonomic notes of Begonia (Begoniaceae) for the flora of China from Guangxi. Phytotaxa 773 (1): 69–78. https://doi.org/10.11646/phytotaxa.773.1.6