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Issue: Vol. 765 No. 1: 30 Jun. 2026
Type: Article
Published: 2026-06-30
DOI: 10.11646/phytotaxa.765.1.5
Page range: 65-76
Abstract views: 0
PDF downloaded: 0

Taxonomic reassessment of Hypericum austroyunnanicum (Hypericaceae) supports its synonymy with H. wightianum

Yunnan Key Laboratory of Plant Diversity and Biogeography of East Asia; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; Yunnan; China; State Key Laboratory of Phytochemistry and Natural Medicines; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; Yunnan; China; College of Life Sciences; University of Chinese Academy of Sciences; Beijing 100049; China
Yunnan Key Laboratory of Plant Diversity and Biogeography of East Asia; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; Yunnan; China; State Key Laboratory of Phytochemistry and Natural Medicines; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; Yunnan; China; College of Life Sciences; University of Chinese Academy of Sciences; Beijing 100049; China
Yunnan Key Laboratory of Plant Diversity and Biogeography of East Asia; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; Yunnan; China; State Key Laboratory of Phytochemistry and Natural Medicines; Kunming Institute of Botany; Chinese Academy of Sciences; Kunming 650201; Yunnan; China
Eudicots Taxonomy Synonymy Morphology Phylogeny Hypericum

Abstract

Based on a comprehensive examination of herbarium specimens, field investigations, and phylogenetic analyses, we demonstrate that Hypericum austroyunnanicum , previously reported from Menglian county, Yunnan province, China, is conspecific with H. wightianum. According, H. austroyunnanicum is here reduced to synonymy under H. wightianum. A morphological description and photographic illustrations of H. wightianum are provided.

References

  1. APG IV. (2016) An update of the angiosperm phylogeny group classification for the orders and families of flowering plants: APG IV. Botanical Journal of the Linnean Society 181: 1–20. https://doi.org/10.1111/boj.12385
  2. Bai, R.Z., He, Z.L., Celep, F., Wang, L. & Xiang, C.L. (2025) Hypericum chishuiense (Hypericaceae, sect. Ascyreia), a new St. John’s wort species from Guizhou, China. Turkish Journal of Botany 49: 133–142. https://doi.org/10.55730/1300-008X.2848
  3. Bai, R.Z., Yu, J.X., Zhao, F., Asafaw, F., Drew, B.T., Chen, Y.P., Seregin, A.P., Cai, J., Menemen, Y., Celep, F., He, Z.S., Ertaş, Ş., Xu, G, & Xiang, C.L. (2026) Phylogenetic insights into Hypericum (Hypericaceae) from China based on genome-skimming data. Taxon 75: e70166 https://doi.org/10.1002/tax.70166
  4. Bai, R.Z., Zhao, F., Cai, J., Shen, S.K. & Xiang, C.L. (2023a) Hypericum podocarpoides N. Robson (Hypericaceae): a newly recorded species from China. Plant Science Journal 41: 1–6.
  5. Bai, R.Z., Zhao, F., Drew, B.T., Xu, G., Cai, J., Shen, S.K. & Xiang, C.L. (2023b) Seed morphology of Hypericum (Hypericaceae) in China and its taxonomic significance. Microscopy Research and Technique 86: 1496–1509. https://doi.org/10.1002/jemt.24372
  6. Blume, C.L. (1823) Cratoxylum. Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen 9: 174–177.
  7. Capella-Gutiérrez, S., Silla-Martínez, J.M. & Gabaldón, T. (2009) trimAl: a tool for automated alignment trimming in large-scale phylogenetic analyses. Bioinformatics 25: 1972–1973. https://doi.org/10.1093/bioinformatics/btp348
  8. Chen, S.F., Zhou, Y.Q., Chen, Y. & Gu, J. (2018) fastp: an ultra-fast all-in-one FASTQ preprocessor. Bioinformatics 34: 884–890. https://doi.org/10.1093/bioinformatics/bty560
  9. Claude, S.J., Park, K.T. & Park, S. (2026) Plastome evolution at the edge: structural rearrangements, IR expansion, and gene flux in Hypericaceae (Malpighiales). BMC Plant Biology 26: 222. https://doi.org/10.1186/s12870-025-07888-7
  10. Doyle, J.J. & Doyle, J.L. (1987) A rapid DNA isolation procedure for small quantities of fresh leaf tissue. Phytochemical Bulletin 19: 11–15.
  11. Hooker, J.D. & Thomson, T. (1874) Hypericineae. In: Hooker, J.D. (Ed.) The Flora of British India, Vol. 1. L. Reeve & Co., London, pp. 255. https://doi.org/10.5962/bhl.title.54393
  12. IUCN Standards and Petitions Committee (2024) Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. Available from: http//www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 11 May 2026)
  13. Jin, J.J., Yu, W.B., Yang, J.B., Song, Y., dePamphilis, C.W., Yi, T.S. & Li, D.Z. (2020) GetOrganelle: a fast and versatile toolkit for accurate de novo assembly of organelle genomes. Genome Biology 21: 241. https://doi.org/10.1186/s13059-020-02154-5
  14. Katoh, K. & Standley, D.M. (2013) MAFFT multiple sequence alignment software version 7: improvements in performance and usability. Molecular Biology and Evolution 30: 772–780. https://doi.org/10.1093/molbev/mst010
  15. Kearse, M., Moir, R., Wilson, A., Stones-Havas, S., Cheung, M., Sturrock, S., Buxton, S., Cooper, A., Markowitz, S., Duran, C., Thierer, T., Ashton, B., Meintjes, P. & Drummond, A. (2012) Geneious basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data. Bioinformatics 28: 1647–1649. https://doi.org/10.1093/bioinformatics/bts199
  16. Linnaeus, C. (1753) Species plantarum, vol. 2. Impensis Laurentii Salvii, Holmiae, pp. 783–785.
  17. Li, X.W. & Robson, N.K.B. (2007) Hypericum. In: Wu, C.Y. & Raven, P.H. (Eds.) Flora of China, Vol. 13. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis, pp. 2–35.
  18. Marchese, C. (2015) Biodiversity hotspots: A shortcut for a more complicated concept. Global Ecology and Conservation 3: 297–309. https://doi.org/10.1016/j.gecco.2014.12.008
  19. Martius, C.F.P. (1823) durch Brasilien auf Befehl Sr. Majestät Maximilian Joseph I., Königs von Baiern, in den Jahren 1817–1820 gemacht und beschrieben, Vol. 1. Lindauer, München, pp. 552.
  20. Meseguer, A.S., Aldasoro, J.J. & Sanmartín, I. (2013) Bayesian inference of phylogeny, morphology and range evolution reveals a complex evolutionary history in St. John’s wort (Hypericum). Molecular Phylogenetics and Evolution 67: 379–403. https://doi.org/10.1016/j.ympev.2013.02.007
  21. Myers, N., Mittermeier, R.A., Mittermeier, C.G., Da Fonseca, G.A. & Kent, J. (2000) Biodiversity hotspots for conservation priorities. Nature 403: 853–858. https://doi.org/10.1038/35002501
  22. Nürk, N.M., Madriñán, S., Carine, M.A., Chase, M.W. & Blattner, F.R. (2013) Molecular phylogenetics and morphological evolution of St. John’s wort (Hypericum; Hypericaceae). Molecular Phylogenetics and Evolution 66: 1–16. https://doi.org/10.1016/j.ympev.2012.08.022
  23. Ou, X.Y., Chu, Z.F., Ouyang, W.X., Qin, W.Q., Quan, Z.X., Zhang, M.H., Zhang, D.G. & Xiao, J.W. (2025) Hypericum shunhuangshanense (Hypericaceae), a new species from Hunan, China. PhytoKeys 260: 13–23. https://doi.org/10.3897/phytokeys.260.153988
  24. Qu, X.J., Moore, M.J., Li, D.Z. & Yi, T.S. (2019) PGA: a software package for rapid, accurate, and flexible batch annotation of plastomes. Plant Methods 15: 50. https://doi.org/10.1186/s13007-019-0435-7
  25. Robson, N.K.B. (1977) Studies in the genus Hypericum L. (Guttiferae): 1. Infrageneric classification. Bulletin of the British Museum (Natural History), Botany Series 5: 293–355.
  26. Robson, N.K.B. (2001) Studies in the genus Hypericum L. (Guttiferae) 4 (1). Sections 7. Roscyna to 9. Hypericum sensu lato (part 1). Bulletin of the British Museum (Natural History), Botany Series 31: 66–76. https://doi.org/10.1017/S096804460200004X
  27. Robson, N.K.B. (2002) Studies in the genus Hypericum L. (Guttiferae) 4 (2). Section 9. Hypericum sensu lato (part 2): subsection 1. Hypericum series 1. Hypericum. Bulletin of the British Museum (Natural History), Botany Series 32: 61–123. https://doi.org/10.1017/S096804460200004X
  28. Robson, N.K.B. (2012) Studies in the genus Hypericum L. (Hypericaceae). 9. Addenda, corrigenda, keys, lists and general discussion. Phytotaxa 72: 1–111. https://doi.org/10.11646/phytotaxa.72.1.1
  29. Robson, N.K.B. (2016) And then came molecular phylogenetics—Reactions to a monographic study of Hypericum (Hypericaceae). Phytotaxa 255: 181–198. https://doi.org/10.11646/phytotaxa.255.3.1
  30. Rocha, L., Ribeiro, P.L., Endress, P.K. & Rapini, A. (2019) A brainstorm on the systematics of Turnera (Turneraceae, Malpighiales) caused by insights from molecular phylogenetics and morphological evolution. Molecular Phylogenetics and Evolution 137: 44–63. https://doi.org/10.1016/j.ympev.2019.04.015
  31. Shihab, D., Al-Hatem, J. & Alkhashab, F. (2025) The Molecular Identification of Hypericum perforatum L. Growing in Nineveh Governorate. Journal of Wahj Al-Ulom for Pure Sciences 1: 1–8. https://doi.org/10.33899/jwups.v1i3.21914
  32. Spach, É. (1836) Conspectus monographiae Hypericorum. Annales des Sciences Naturelles, série 2, Botanique 5: 349–371.
  33. Stamatakis, A. (2014) RAxML version 8: a tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics 30: 1312–1313. https://doi.org/10.1093/bioinformatics/btu033
  34. Stöver, B.C. & Müller, K.F. (2010) TreeGraph 2: combining and visualizing evidence from different phylogenetic analyses. BMC bioinformatics 11: 7. https://doi.org/10.1186/1471-2105-11-7
  35. Thiers, B. (2026) Index Herbariorum: A Global Directory of Public Herbaria and Associated Staff; New York Botanical Garden’s Virtual Herbarium. Available online: http://sweetgum.nybg.org/science/ih/ (accessed 16 January 2026)
  36. Vandelli, D. (1788) Vismia. Florae Lusitanicae et Brasilienis specimen. Ex typographia Academico-Regia, Conimbricae, 51 pp.
  37. Wu, L.H., Yang, D.P. & Wang, F.S. (2002) Hypericum austroyunnanicum, a new species of Hypericaceae from Yunnan, China. Journal of Systematic and Evolution 40: 77–79.
  38. Wu, T.R., Xu, J., An, M.T., Yu, J.H., Liu, F. & Chen, Z.R. (2024) Hypericum liboense (Hypericaceae), a new species from Guizhou, China. PhytoKeys 237: 37–49. https://doi.org/10.3897/phytokeys.237.110482
  39. Ying, S.S. (2022) A new species of genus Hypericum (Hypericaceae) from Taiwan—(Hypericum eastmostianum S.S. Ying). In: Ying, S.S. (Ed.) New taxa and new names, Vol. 3. Research Center of Flora of Taiwan, Taipei, pp. 74–78.
  40. Zhang, D., Gao, F., Jakovlić, I., Zou, H., Zhang, J., Li, W.X. & Wang, G.T. (2020) PhyloSuite: an integrated and scalable desktop platform for streamlined molecular sequence data management and evolutionary phylogenetics studies. Molecular Ecology Resources 20: 348–355. https://doi.org/10.1111/1755-0998.13096
  41. Zhang, N.N., Stull, G.W., Zhang, X.J., Fan, S.J., Yi, T.S. & Qu, X.J. (2025) PlastidHub: an integrated analysis platform for plastid phylogenomics and comparative genomics. Plant Diversity 47: 544–560. https://doi.org/10.1016/j.pld2025.05.0.05
  42. Zou, L., Bai, R.Z., Xiang, C.L. & Li, L. (2024) Characterization of the complete chloroplast genome sequence of Hypericum petiolulatum (Hypericaceae). Korean Journal of Plant Taxonomy 54: 80–85. https://doi.org/10.11110/kjpt.2024.54.1.80

How to Cite

Bai, R.-Z., Yu, J.-X. & Xiang, C.-L. (2026) Taxonomic reassessment of Hypericum austroyunnanicum (Hypericaceae) supports its synonymy with H. wightianum. Phytotaxa 765 (1): 65–76. https://doi.org/10.11646/phytotaxa.765.1.5