Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 758 No. 1: 20 May 2026
Type: Article
Published: 2026-05-20
DOI: 10.11646/phytotaxa.758.1.7
Page range: 83-93
Abstract views: 0
PDF downloaded: 0

Lectotypification, emended description and new data on the distribution of the Vietnam endemic Phlogacanthus publiflorus (Acanthaceae)

Institute of Biology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam; Graduate University of Science and Technology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam
##plugins.generic.jatsParser.article.authorBio##
×

DO VAN HAI

Institute of Biology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Hanoi 10072, Vietnam.

Institute of Biology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam; Graduate University of Science and Technology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam
##plugins.generic.jatsParser.article.authorBio##
×

NGUYEN THE CUONG

Institute of Biology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Hanoi 10072, Vietnam.

Institute of Biology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam; Graduate University of Science and Technology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam
##plugins.generic.jatsParser.article.authorBio##
×

TRAN ANH TUAN

Institute of Biology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Hanoi 10072, Vietnam

Graduate University of Science and Technology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam; Institute of Earth Sciences; Vietnam Academy of Science and Technology; 68 Huynh Thuc Khang Street; Lang Ward; Hanoi 10000; Vietnam
##plugins.generic.jatsParser.article.authorBio##
×

NGUYEN THANH HOAN

Institute of Earth Sciences, Vietnam Academy of Science and Technology, 68 Huynh Thuc Khang Street, Lang Ward, Hanoi 10000, Vietnam

Institute of Biology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam; Graduate University of Science and Technology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet; Nghia Do; Hanoi 10072; Vietnam
##plugins.generic.jatsParser.article.authorBio##
×

HA QUY QUYNH

Institute of Biology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Hanoi 10072, Vietnam.

Department of Botany; University of Delhi; Delhi 110007; India
##plugins.generic.jatsParser.article.authorBio##
×

RITESH KUMAR CHOUDHARY

Biodiversity & Palaeobiology Group, Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, India.

Biodiversity, Ba Vi, Cuc Phuong, Phu Tho, Flame-Acanthus, nomenclature, Vietnam Eudicots Biodiversity Ba Vi Cuc Phuong Phu Tho Flame-Acanthus nomenclature Vietnam

Abstract

Phlogacanthus publiflorus (Acanthaceae), endemic to northern Vietnam, is lectotypified here to resolve taxonomic ambiguities identified during a review of its protologue and original materials. This study provides a comprehensive taxonomic treatment for the species, including an expanded geographical distribution based on new records. A detailed morphological description, supplemented by colour photographs, and scanning electron micrographs of pollen and seeds. A line drawing along with information on habitat, ecology, and phenology is presented. Based on the updated data, a conservation assessment is proposed following the IUCN Red List criteria. A taxonomic key to the species belonging to the genus Phlogacanthus in Vietnam is also provided.

References

  1. Anderson, T. (1867) An enumeration of the Indian species of Acanthaceae. Journal of the Linnean Society, Botany 9: 425–526. https://doi.org/10.1111/j.1095-8339.1867.tb01308.x
  2. Beentje, H. (2016) The Kew plant glossary: an illustrated dictionary of plant terms, 2nd ed. Kew Publishing, Royal Botanic Garden, 197 pp.
  3. Benoist, R. (1935) Acanthacées. In: Lecomte, H. (Ed.) Flore Générale de l’Indochine 4. Masson et Cie, Paris, pp. 610–772.
  4. Brummitt, R.K. (1992) Vascular plant families and genera. Royal Botanic Gardens Kew, Richmond, Surrey, UK, 804 pp.
  5. Davies, N.M.J., Drinkell, C. & Utteridge, T.M.A. (2023) The Herbarium Handbook. 4th edition completely revised and updated. Royal Botanic Gardens, Kew, 256 pp.
  6. Deng, Y.F. (2020) Phlogacanthus Nees. In: Hong, D.Y. (Ed.) Flora of Pan-Himalaya 46. Science Press, Beijing, pp. 319–335.
  7. GBIF (2025) The Global Biodiversity Information Facility. Available from: https://www.gbif.org/ (accessed: 15 September 2025).
  8. Hai, D.V., Hoan, D.T. & Choudhary, R.K. (2020) Phlogacanthus geoffrayi Benoist (Acanthaceae): a new record to the flora of Vietnam. VNU Journal of Science: Natural Sciences and Technology 36 (2): 49–53. https://doi.org/10.25073/2588-1140/vnunst.4962
  9. Hai, D.V., Hoan, D.T., Nuraliev, M.S., Kuznetsov, A.N., Kuznetsova, S.P., Choudhary, R.K. & Lee, J. (2021) Untangling the taxonomy of Phlogacanthus pulcherrimus (Acanthaceae) newly recorded from Vietnam. Phytotaxa 518 (1): 45–53. https://doi.org/10.11646/phytotaxa.518.1.5
  10. Hai, D.V., Mai, N.T., Huong, N.T.T., Choudhary, R.K. & Deng, Y.F. (2018) An updated taxonomy of the genus Phlogacanthus (Acanthaceae) in Vietnam. Phytotaxa 372 (2): 167–175. https://doi.org/10.11646/phytotaxa.372.2.3
  11. Halbritter, H., Ulrich, S., Grímsson, F., Weber, M., Zetter, R., Hesse, M., Buchner, R., Svojtka, M. & Frosch-Radivo, A. (2018) Illustrated Pollen Terminology, 2nd ed. Springer-Verlag/Wien, Austria, 487 pp. https://doi.org/10.1007/978-3-319-71365-6
  12. Ho, P.H. (2000) Acanthaceae. In: Ho, P.H. (Ed.) Cây cỏ Việt Nam – An Illustrated Flora of Vietnam 3. Tre Publishing House, Ho Chi Minh City, pp. 30–82.
  13. Hu, C.C. & Fu, X.P. (2005) Acanthaceae. In: Fu, L.K. & Hong, T. (Eds.) Higher plants of China 10. Qingdao Publishing House, Qingdao, pp. 329–416.
  14. Hu, C.C. (2002) Cystacanthus, Phlogacanthus. In: Hu, C.C. (Ed.) Flora Reipublicae Popularis Sinicae 70. Science Press, Beijing, pp. 207–214.
  15. Hu, J.Q., Deng, Y.F. & Daniel, T.F. (2011) Cystacanthus, Phlogacanthus. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 474–477.
  16. IUCN Standards and Petitions Committee (2024) Guidelines for using the IUCN red list categories and criteria. Version 16. Available from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed: 15 September 2025).
  17. Lien, T.K. (2005) Acanthaceae. In: Ban, N.T. (Ed.) Checklist of plant species of Vietnam 3. Agricultural Publishing House, Hanoi, pp. 251–281.
  18. Lindau, G. (1897) Acanthaceae Americanae et Asiaticae. Novaae Vel Minus Cognitae. Bulletin du l’Herbier Boissier 5 (8): 643–681.
  19. Mabberley, D.J. (2017) Mabberley’s Plant-Book: A portable dictionary of plants, their classification and uses, 4th ed. Cambridge University Press, Cambridge, 1102 pp. https://doi.org/10.1017/9781316335581
  20. Manzitto-Tripp, E.A., Darbyshire, I., Daniel, T.F., Kiel, C.A. & McDade, L.A. (2022) Revised classification of Acanthaceae and worldwide dichotomous keys. Taxon 71 (1): 103–153. https://doi.org/10.1002/tax.12600
  21. MNHN, Chagnoux S (2025) The vascular plants collection (P) at the Herbarium of the Muséum national d'Histoire Naturelle (MNHN—Paris). Version 69.422. Occurrence dataset. Available from: https://www.gbif.org/occurrence/439121436 (accessed: 15 September 2025) https://doi.org/10.15468/nc6rxy
  22. Nees von Esenbeck, C.G. (1832) Acanthaceae Indiae Orientalis. In: Wallich, N. (Ed.) Plantae Asiaticae Rariores 3. Treuttel, Würtz & Richter, London, pp. 70–112. https://doi.org/10.5962/bhl.title.468
  23. POWO (2025) Plants of the World Online. Facilitated by the Royal Botanic Gardens. Published on the Internet. Available from: https://powo.science.kew.org/taxon/30196151-2 (accessed: 15 September 2025).
  24. Scotland, R.W. (1992) Pollen morphology of Andrographideae (Acanthaceae). Review of Palaeobotany and Palynology 72: 229–243. https://doi.org/10.1016/0034-6667(92)90028-F
  25. Scotland, R.W. & Vollesen, K. (2000) Classification of Acanthaceae. Kew Bulletin 55: 513–589. https://doi.org/10.2307/4118776
  26. Thiers, B. (2025) [continuously updated] Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: https://sweetgum.nybg.org/ih/ (accessed: 15 September 2025).
  27. Turland, N.J., Wiersema, J.H., Barrie, F.R., Gandhi, K.N., Gravendyck, J., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Klopper, R.R., Knapp, S., Kusber, W.-H., Li, D.-Z., May, T.W., Monro, A.M., Prado, J., Price, M.J., Smith, G.F. & Zamora Señoret, J.C. (2025) International Code of Nomenclature for algae, fungi, and plants (Madrid Code). Regnum Vegetabile 162. Chicago: University of Chicago Press. https://doi.org/10.7208/chicago/9780226839479.001.0001
  28. Xia, C. & Deng, Y.F. (2013) Phlogacanthus yangtsekiangensis, a new combination in Chinese Acanthaceae. Phytotaxa 104: 58–60. https://doi.org/10.11646/phytotaxa.104.1.9

How to Cite

Hai, D.V., Cuong, N.T., Tuan, T.A., Hoan, N.T., Quynh, H.Q. & Choudhary, R.K. (2026) Lectotypification, emended description and new data on the distribution of the Vietnam endemic Phlogacanthus publiflorus (Acanthaceae). Phytotaxa 758 (1): 83–93. https://doi.org/10.11646/phytotaxa.758.1.7