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Issue: Vol. 782 No. 3: 30 Oct. 2026
Type: Article
Published: 2026-10-30
DOI: 10.11646/phytotaxa.782.3.8
Page range: 297-300
Abstract views: 58
PDF downloaded: 32

A new species, Oxygyne myanmarensis (Thismiaceae), from Myanmar: bridging the disjunct distribution between Africa and Japan

Department of Botany; National Museum of Nature and Science; 4-1-1 Amakubo; Tsukuba; Ibaraki; 305-0005; Japan
Chit Win Sein Farm; corner of Saw San Si Phoe Street and Sein Si Mya Street; Ward No. (6); Hpa-an; Kayin State; Myanmar
Forest Research Institute; Forest Department; Ministry of Natural Resources and Environmental Conservation; Yezin; Nay Pyi Taw; Myanmar
Monocots Oxygyne myanmarensis Thismiaceae Myanmar mycoheterotrophic plants

Abstract

A new species of Oxygyne (Thismiaceae), O. myanmarensis Nob.Tanaka & Paing, is described from Myanmar. The genus Oxygyne was previously known only from southern Japan and central Africa, exhibiting a striking disjunct distribution. This discovery is also the first to demonstrate that the genus also occurs in Southeast Asia, bridging the gap between these two regions.

References

  1. Abe, C. & Akasawa, Y. (1989) A new species of Oxygyne (Burmanniaceae) found in Shikoku, Japan. Journal of Japanese Botany 64: 161–164.
  2. Airy Shaw, H.K. (1952) A new genus and species of Burmanniaceae from south India. Kew Bulletin 2: 277–279. https://doi.org/10.2307/4109280
  3. Christenhusz, M.J.M., Fay, M.F. & Byng, J.W. (2018) GLOVAP nomenclature part 1. The Global Flora 4: 1–155. [Plant Gateway Ltd]
  4. Cheek, M., Tsukaya, H., Rudall, P.J. & Suetsugu, K. (2018) Taxonomic monograph of Oxygyne (Thismiaceae), rare achlorophyllous mycoheterotrophs with strongly disjunct distribution. PeerJ 6: e4828. https://doi.org/10.7717/peerj.4828
  5. Forster, J.R. & Forster, G. (1776) Characters generum plantarum. White, Cadell & Elmsly, London, 155 pp. https://doi.org/10.5962/bhl.title.4448
  6. Griffith, W. (1845) On the root parasites referred by authors to Rhizantheae and their allies. Proceedings of the Linnean Society of London 1: 216–221.
  7. Ohashi, H. (2015) Resurrection of Saionia (Thismiaceae). Journal of Japanese Botany 90: 115–118.
  8. POWO (2026) Plants of the World Online. Royal Botanic Gardens, Kew. Available from: http://www.plantsoftheworldonline.org/ (accessed 13 July 2026)
  9. Schlechter, F.R.R. (1906) Burmanniaceae africanae. Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie 38: 137–143.
  10. Suetsugu, K., Nakamura, Y., Nakano, T. & Tagane, S. (2024) Relictithismia kimotsukiensis, a new genus and species of Thismiaceae from southern Japan with discussions on its phylogenetic relationship. Journal of Plant Research 137: 411–422. https://doi.org/10.1007/s10265-024-01532-5
  11. Thorogood, C.J. (2019) Oxygyne: an extraordinarily elusive flower. Plants, People, Planet 1: 67–70. https://doi.org/10.1002/ppp3.26
  12. Tsukaya, H. (2016) Burmanniaceae. In: Iwatsuki, K., Boufford, D.E. & Ohba, H. (Eds.) Flora of Japan, vol. IVb. Kodansha, Tokyo, pp. 194–197.
  13. Yahara, T. & Tsukaya, H. (2008) Oxygyne yamashitae, a new species of Thismiaceae from Yaku island, Japan. Acta Phytotaxonomica et Geobotanica 59: 97–104.

How to Cite

Tanaka, N., Paing, C.S. & Aung, M.M. (2026) A new species, Oxygyne myanmarensis (Thismiaceae), from Myanmar: bridging the disjunct distribution between Africa and Japan. Phytotaxa 782 (3): 297–300. https://doi.org/10.11646/phytotaxa.782.3.8