Abstract
This paper provides taxonomic notes on the genus Thunbergia in Vietnam. Thunbergia hossei is reported as a new record to the flora of Vietnam. In addition, a detailed description and photographs are provided of the insufficiently known T. eberhardtii. Lectotypes are designated for the names Thunbergia hossei and T. eberhardtii. A key to the Thunbergia species in Vietnam is provided.
References
- Adhikari, B., Pendry, C.A., Watson, M.F. & Wood, J.R.I. (2013) An account of Thunbergia (Acanthaceae) in Nepal, with a description of the new species T. nepalensis. Kew Bulletin 68: 651–661. https://doi.org/10.1007/s12225-013-9481-x
- Beentje, H.J. (2010) The Kew plant glossary: an illustrated dictionary of plant terms. Royal Botanic Gardens, Kew, Richmond, 164 pp. https://doi.org/10.1111/j.1095-8339.2010.01099.x
- Benoist, R. (1921) Descriptions d’espèces nouvelles d’Acanthacées d’Indo-Chine. Bulletin du Muséum National d’Histoire Naturelle 27: 543–547.
- Benoist, R. (1935) Acanthacées. In: Lecomte, M.H. (Ed.) Flore Générale de l’Indochine. Vol. 4. Masson, Paris, pp. 610–772.
- Borg, A.J., McDade, L.A. & Schönenberger, J. (2008) Phylogeny and morphology of Thunbergioideae. Taxon 57 (3): 811–822. https://doi.org/10.1002/tax.573012
- Bridson, D. & Forman, L. (1999) Herbarium Handbook - 3rd Edition. Lubrecht & Cramer Ltd, Kew, 346 pp.
- Clarke, C.B. (1885) Acanthaceae. In: Hooker, J.D. (Ed.) Flora of British India 4. L. Reeve, London, pp. 387–558. https://doi.org/10.5962/bhl.title.678
- Cramer, L.H. (1998) Thunbergia (Acanthaceae). In: Dassanayake, M.D. & Clayton, W.D. (Eds.) A Revised Handbook to the Flora of Ceylon, Vol. 12. A.A. Balkema, Rotterdam, pp. 6–13.
- Deng, Y.F. (2020) Acanthaceae. In: Hong, D.Y. (Ed.) Flora of Pan-Himalaya 46. Science Press, Beijing, pp. 39–443.
- Ho, P.H. (2000) Cay Co Viet Nam—An Illustrated Flora of Vietnam. Vol. 3. Tre Publishing House, Ho Chi Minh, Vietnam, 1020 pp. [in Vietnamese]
- Hosseus, C.C. (1907) Die aus Siam bekannten Acanthaceen. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 41: 62–73. Available from: https://www.biodiversitylibrary.org/item/703# (accessed 16 April 2025)
- Hu, J.Q., Deng, Y.F. & Daniel, T.F. (2011) Thunbergia (Acanthaceae). 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. 377–379.
- 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 16 April 2025)
- Kress, J., De Filipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003) A checklist of the trees, shrubs, herbs and climbers of Myanmar. Contributions from the United States National Herbarium 45: 1–590. https://doi.org/10.1017/S0960428605270270
- Kurz, S. (1877) Forest Flora of British Burma. Vol. 2. Government Printing Office, Calcutta, 613 pp. https://doi.org/10.5962/bhl.title.52413
- Lien, T.K. (2005) Acanthaceae. In: Ban, N.T. (Ed.) Checklist of plant species of Vietnam. Vol. 3. Agricultural Publishing House, Hanoi, pp. 251–281.
- 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
- 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
- McDade, L.A., Daniel, T.F. & Kiel, C.A. (2008) Toward a comprehensive understanding of phylogenetic relationships among lineages of Acanthaceae s.l. (Lamiales). American Journal of Botany 95: 1136–1152. https://doi.org/10.3732/ajb.0800096
- Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007) A Checklist of the Vascular Plants of Lao PDR. Royal Botanic Gardens Edinburgh, Edingburgh Scotland, UK, 394 pp.
- POWO (2024) Plants of the World Online Royal Botanic Gardens, Kew. Available from: http://www.plantsoftheworldonline.org/?q= Thunbergia (accessed 4 September 2024)
- Retzius, A.J. (1776) Thunbergia capensis: Et nytt Växtslag från Africa. Physiographiska Sälskapets Handlingar 1 (3): 163–164.
- Ridley, H.N. (1923) The Flora of the Malay Peninsula 2. L. Reeve & Co. Ltd., London, 672 pp. https://doi.org/10.5962/bhl.title.10921
- Scotland, R.W. & Vollesen, K. (2000) Classification of Acanthaceae. Kew Bulletin 55: 513–589. https://doi.org/10.2307/4118776
- Thiers, B. (2023) [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 4 February 2023)
- Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (Eds.) (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Vegetabile 159. Koeltz Botanical Books, Glashütten. https://doi.org/10.12705/Code.2018