Research Paper
Oreocharis thanhii (Gesneriaceae), a new species from Northwest Vietnam
Thi Phuong Anh Tran, Khang Sinh Nguyen, Ke Tan, Leonid V. Averyanov
Published on: 04 July 2023
Page: 275 - 280
DOI: 10.6165/tai.2023.68.275
Abstract
Oreocharis thanhii, a new species from Lai Chau Province, Northwest Vietnam, is described and illustrated. It is morphologically most similar to O. obliqua in purple flower, slender cylindrical corolla tube, and free anthers but differs from the latter by having fewer lateral veins, simple cyme or simple dichasium inflorescence, glandular-puberulent filaments and styles. Besides providing a detailed description and preliminary conservation status of this novelty, its key discriminative characteristics with related species are also presented in this paper.
Keyword: Endemism, Indochina, Lai Chau province, Oreocharis blepharophylla, Oreocharis obliqua, Trichosporeae
Literature Cited
Beentje, H. 2016 The Kew Plant Glossary, an illustrated dictionary of plant terms (2nd ed., illus. by Williamson, J.). Royal Botanic Gardens, Kew: Kew Publishing. 184 pp.
Chen, W.H., Middleton, D.J., Nguyen, H.Q., Nguyen, H.T., Averyanov, L.V., Chen, R.Z., Nguyen, K.S., M?ller, M., Shui, Y.M. 2017 Two new species of Oreocharis (Gesneriaceae) from Northwest Vietnam. Gard. Bull. Singapore 69(2): 295–305.
DOI: 10.26492/gbs69(2).2017-08View Article
Google Scholar
Chen,W.H., Nguyen, Q.H., Chen, R.Z., Nguyen, H.T., Nguyen, S.K., Nguyen, V.T., M?ller, M., Middleton, D.J. Shui, Y.M. 2018 Two new species of Oreocharis (Gesneriaceae) from Fan Si Pan, the highest mountain in Vietnam. PhytoKeys 94: 95–106.
DOI: 10.3897/phytokeys.94.21329View Article
Google Scholar
Do, T.V., Wei, Y.G., Wen, F. 2017 Oreocharis caobangensis (Gesneriaceae), a new species from Cao Bang Province, northern Vietnam. Phytotaxa 302(1): 65–70.
GRC 2023 (continuously updated). Gesneriaceae Resource Centre. Royal Botanic Garden Edinburgh. Available from https://padme.rbge.org.uk/GRC. (accessed on 30 January 2023).
IUCN 2022 Guidelines for Using the IUCN Red List Categories and Criteria, Version 15.1. Prepared by the Standards and Petitions Subcommittee. https://www.iucnredlist.org/resources/redlistguidelines [accessed: 20 July 2022]
DOI: 10.11646/phytotaxa.302.1.6View Article
Google Scholar
GRC 2023 (continuously updated). Gesneriaceae Resource Centre. Royal Botanic Garden Edinburgh. Available from https://padme.rbge.org.uk/GRC. (accessed on 30 January 2023).
IUCN 2022 Guidelines for Using the IUCN Red List Categories and Criteria, Version 15.1. Prepared by the Standards and Petitions Subcommittee. https://www.iucnredlist.org/resources/redlistguidelines [accessed: 20 July 2022]
Jin, X., Ling, S.J., Wen, F., Ren, M.X. 2021 Biogeographical pattern and floral evolution of Oreocharis (Gesneriaceae). Plant Science Journal 39: 379–388.
Kong, H.H., Condamine, F.L., Yang, L.H., Harris, A.J., Feng, C., Wen, F., Kang, M. 2022 Phylogenomic and macroevolutionary evidence for an explosive radiation of a plant genus in the miocene. Syst. Biol. 71(3): 589–609.
DOI: 10.1093/sysbio/syab068View Article
Google Scholar
Le, K.D., Nguyen, T.T., Nguyen, P.T., Hoang, T.T., Wen, F., Do, T.V. 2022 Oreocharis phuongii (Gesneriaceae), a new species from central Vietnam. PhytoKeys 193: 43–53.
DOI: 10.3897/phytokeys.193.77083View Article
Google Scholar
Li, H.W. 1983 Notulae de Gesneraceis Yunnanensibus. Bulletin of Botanical Research, Harbin 3(2): 1–55.
Li, Z.Y. and Y.Z., Wang. 2005. Plants of Gesneriaceae in China. Henan Science & Technology Publishing House, Zhengzhou, 721 pp.
Lv, Z.Y., Yusupov, Z., Zhang, D.G., Zhang, Y.Z., Zhang, X.S., Lin, N., Tojibaev, K., Sun, H., Deng, T. 2022 Oreocharis xieyongii, an unusual new species of Gesneriaceae from western Hunan, China. Pl. Divers. 44(2): 222–230.
DOI: 10.1016/j.pld.2021.11.008View Article
Google Scholar
M?ller, M., Middleton, D., Nishii, K., Wei, Y.G., Sontag, S., Weber, A. 2011 A new delineation for Oreocharis incorporating an additional ten genera of Chinese Gesneriaceae. Phytotaxa 23: 1–36.
DOI: 10.11646/phytotaxa.23.1.1View Article
Google Scholar
M?ller, M., Atkins, H.J., Bramley, G.L.C., Middleton, D.J., Baines, R., Nguyen, V.D., Bui, H.Q., Barber, S. 2018 Two new species of Oreocharis (Gesneriaceae) from Northern Vietnam. Edinburgh J. Bot. 75(3): 309–319.
DOI: 10.1017/S0960428618000148View Article
Google Scholar
POWO 2023 Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Available from http://www.plantsoftheworldonline.org (accessed 9 January 2023).
Tan, K., Lu, T., Ren, M.X. 2020 Biogeography and evolution of Asian Gesneriaceae based on updated taxonomy. PhytoKeys 157: 7–26.
DOI: 10.3897/phytokeys.157.34032View Article
Google Scholar
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 http://sweetgum.nybg.org/science/ih/ (accessed on 9 January 2023).
Vu, X.P. 2017 Flora of Vietnam, Vol. 18. Gesneriaceae. Technology & Science Publishing House, Hanoi. 416 pp.
Wang, W.T., Pan, K.Y., Li, Z.Y., Weitzman, A.L., Skog, L.E. 1998 Gesneriaceae. In: Wu, Z.Y. & P.H. Raven (eds.), Flora of China, Vol. 18: 244–401. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis.
Weber, A., Clark, J.L., M?ller, M. 2013 A new formal classification of Gesneriaceae. Selbyana 31: 68–94.
Wei, Y.G, Wen, F., M?ller, M., Monro, A., Zhang, Q., Gao, Q., Mou, H.F., Zhong, S.H., Cui, C. 2010 Gesneriaceae of South China. Guangxi Science and Technology Publishing House, Nanning. 777 pp.
Wei, Y.G. 2018 The distribution and conservation status of native plants in Guangxi, China. China Forestry Publishing House, Beijing, 549 pp.
Wei, Y.G., Do, V.T., Wen, F. 2022 A checklist to the plants of northern Vietnam. China Forestry Publishing House, Beijing, 606 pp.
Xu, W.B., Guo, J., Pan, B., Zhang, Q., Liu, Y. 2017 Diversity and distribution of Gesneriaceae in China. Guihaia 37: 1219–1226.