Two new species and a new record of Begonia (Begoniaceae) from Vangvieng karst limestone in central Laos
DOI:
https://doi.org/10.20531/tfb.2021.49.2.06Keywords:
Limestone flora, new taxa, new distribution, Cucurbitales, plant taxonomy, waterfallAbstract
Begonia cataracta and B. voluptuaria are described as new species and B. incerta is noted as a new record for Laos. Descriptions, illustrations and photographs are provided for the new species and photographs for the new record. Preliminary conservation assessments are made for the two new species which are assessed as Vulnerable and Critically Endangered respectively.
Downloads
References
Averyanov, L.V. & Nguyen, H.Q. (2012). Eleven new species of Begonia L. (Begoniaceae) from Laos and Vietnam. Turczaninowia 15(2): 5–32.
Averyanov, L.V. & Tillich, H.J. (2015). Aspidistra laotica, A. multiflora, A. oviflora and A. semiaperta spp. nov. (Asparagaceae, Convallariaceae s.s.) from eastern Indochina. Nordic Journal of Botany 33: 366–379. https://doi.org/10.1111/njb.00664
Averyanov, L.V. & Tillich, H.J. (2016). Aspidistra anomala, A. elegans and A. sinensis spp. nov. (Asparagaceae, Convallariaceae s.s.) from China, Laos and Vietnam. Nordic Journal of Botany 34: 141–147.
https://doi.org/10.1111/njb.01014
Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Konstantinov, E.L. (2015). A new species and two new records of Ophiopogon and Peliosanthes (Asparagaceae) in the Flora of Laos. Taiwania 60(2): 86–90. https://doi.org/10.6165/tai.2015.60.86
Averyanov, L.V., Tanaka, N., Nguyen, K.S., Nguyen, Q.N., Maisak, T.V. & Nguyen, T.H. (2017). New species of Peliosanthes, Rohdea and Tupistra (Asparagaceae) from Laos and Vietnam. Nordic Journal of Botany 35: 697–710. https://doi.org/10.1111/njb.01660
Averyanov, L.V., Nguyen, K.S., Maisak, T.V., Nguyen, H.T., Orlov, N.L., Slastunov, D.D. & Sokolova, I.V. (2019a). New orchid species (Orchidaceae) in the flora of Laos. Novitates Systematicae Plantarum Vascularium 50: 25–40. https://doi.org/10.31111/novitates/2019.50.25
Averyanov, L.V., Nguyen, K.S., Maisak, T.V., Nguyen, H.T. & Nguyen, H.Q. (2019b). Two new species of Begonia L. (Begoniaceae) from central Laos. Turczaninowia 22(2): 134–141. https://doi.org/10.14258/turczaninowia.22.2.9
Gu, C., Peng, C.-I & Turland, N.J. (2007). Begoniaceae. In: C.Y. Wu & P.H. Raven (eds), Flora of China (Vol. 13). Science Press & Missouri Botanical Garden, Beijing & St. Louis, Missouri, 153–207. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=10099
De Wilde, J.J.F.E., Hughes, M., Rodda, M. & Thomas, D.C. (2011). Pliocene intercontinental dispersal from Africa to Southeast Asia highlighted by the new species Begonia afromigrata (Begoniaceae). Taxon 60(6): 1685–1692. https://doi.org/10.1002/tax.606013
Ding, H.-B., Maw, M.B., Yang, B., Bouamanivong, S. & Tan, Y.-H. (2020). An updated checklist of Begonia (Begoniaceae) in Laos, with two new species and five new records. PhytoKeys 138: 187–201. https://doi.org/10.3897/phytokeys.138.46718
Hughes, M. (2008). An annotated checklist of Southeast Asian Begonia. Edinburgh: Royal Botanic Garden Edinburgh.
Hughes, M., Moonlight, P.W., Jara-Muñoz, A., Tebbitt, M.C., Wilson, H.P. & Pullan, M. (2015–). Begonia Resource Centre. Online database available from http://padme.rbge.org.uk/begonia/ accessed on 10 February 2021.
Hughes, M., Peng, C.-I, Liu, Y., Thomas, D.C., Phutthai, T., Rubite, R.R., Girmansyah, D., Ardi, W.H., Tanaka, N., Mui, C.Y. & Tan, J. (2018). Species portraits. In: M. Hughes & C.-I Peng (eds), Asian Begonia: 300 Species Portraits. KBCC Pres.
Hughes, M., Aung, M. & Armstrong, K. (2019). An updated checklist and a new species of Begonia (B. rheophytica) from Myanmar. Edinburgh Journal of Botany, 76(2), 285–295. https://doi.org/10.1017/S0960428619000052
IUCN Standard and Petitions Committee (2019). Guidelines for using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Committee. Downloadable from http://www.iucnredlist.org/documents/RedListGuidelines.pdf. Accessed on 28 May 2020.
Kumar, P., Gale, S.W., Li, J.H., Bouamanivong, S. & Fischer, G.A. (2017). Thismia nigricoronata, a new species of Burmanniaceae (Thismieae, Dioscoreales) from Vang Vieng, Vientiane Province, Laos, and a key to subgeneric classification. Phytataxa 319(3): 225–240. https://doi.org/10.11646/phytotaxa.319.3.2
Lanorsavanh, S., Chantaranothai, P. and Souvanna-khoummane, K. (2020a). Six new species of Argostemma Wall. (Rubiaceae) from Laos. Nordic Journal of Botany 38: 1–13. https://doi.org/10.1111/njb.02714
Lanorsavanh, S., Hughes, M., Souvannakhoummane, K. & Lamxay, V. (2020b). Begonia phouchomvoyensis (Begoniaceae), a new species from Laos. Taiwania 65(1): 37–40. https://doi.org/10.6165/tai.2020.65.37
Maw, M.B., Ding, H.-B., Yang, B., Win, P.P. & Tan, Y.-H. (2020). Taxonomic studies on Begonia (Begoniaceae) in Myanmar I: three new species and supplementary description of Begonia rheophytica from Northern Myanmar. PhytoKeys 138: 203–217. https://doi.org/10.3897/phytokeys.138.38721
Moonlight, P.W., Ardi, W.H., Padilla, L.A., Chung, K.F., Fuller, D., Girmansyah, D., Hollands, R., Jara-Munoz, A., Kiew, R., Leong, W.C., Liu, Y., Mahardika, A., Marasinghe, L.D.K., O’Connor, M., Peng, C.-I, Perez, A.J., Phutthai, T., Pullan, M., Rajbhandary, S., Reynel, C., Rubite, R.R., Sang, J., Scherberich, D., Shui, Y.M., Tebbitt, M.C., Thomas, D.C., Wilson, H.P., Zaini, N.H. & Hughes, M. (2018). Dividing and conquering the fastest growing genus: towards a natural sectional classification of the mega-diverse genus Begonia (Begoniaceae). Taxon 67(2): 267–323. https://doi.org/10.12705/672.3
Peng, C.-I, Lin, C.-W., Yang, H.-A., Kono, Y. & Nguyen, H.Q. (2015). Six new species of Begonia (Begoniaceae) from limestone areas in Northern Vietnam. Botanical Studies 56(9): 1–23. https://doi.org/10.1186/s40529-015-0089-3
Pimenov, M.G., Degtjareva, G.V., Ostroumova, T., Samigullin, T. & Averyanov, L.V. (2016). Xyloselinum laoticum (Umbelliferae), a new species from Laos, and taxonomic placement of the genus in the light of nrDNA ITS sequence analysis. Phytotaxa 244(3): 248–262. https://doi.org/10.11646/phytotaxa.244.3.2
Phutthai, T., Hughes, H. & Sridith, K. (2019). Begoniaceae in K. Chayamarit & H. Balslev (eds), Flora of Thailand 14. The forest herbarium, Department of National Park, Wildlife and Plant Conservation, Bangkok, Thailand. pp 359–431.
Souvannakhoummane K., Hughes, M. & Lanorsavanh, S. (2016). Begonia lamxayiana Souvann. (Begoniaceae): a new species from Laos. Thai Journal of Botany 8(1): 1–5.
Souvannakhoummane, K., Lanorsavanh, S. & Lamxay, V. (2018). Two new species of Begonia L. (Begoniaceae) from central Laos. Taiwania 63(3): 188–194. http://doi.org/10.6165/tai.2018.63.188
Souvannakhoummane, K., Lanorsavanh, S., Park, J.H., Kang, H.S., Ahn, T.H., Xayalath, S. & Phongoudom, C. (2020). Begonia colliculata (Begoniaceae), a new species from Nam Kading National Protected Area, Bolikhamxai Province, Laos. Thai Forest Bulletin (Botany). 48(2): 108–113. https://doi.org/10.20531/tfb.2020.48.2.04
Yang, C.-J., Tagane, S., Souladeth, S., Okabe, N., Hu, J.-M. & Yahara, T. (2018). Flora of Nam Kading National Protected Area III: Begonia namkadingensis (Begoniaceae), a new species in limestone area. Phytotaxa 334(2): 195–199. https://doi.org/10.11646/phytotaxa.334.2.8
