Capparis macrantha sp. nov. (Capparaceae, Brassicales), a new shrub species from a deciduous forest of the Nam Kading National Protected Area (central Lao PDR)

  • Keooudone Souvannakhoummane The Agro-Biodiversity Initiative, National Agriculture and Forest Research Institute, Vientiane
  • Silvio Fici Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo
  • Soulivanh Lanorsavanh Biology Department, Faculty of Natural Science, National University of Laos, Vientiane
  • Jeong Ho Park nternational Environmental Cooperation Center, National Instrumentation Center for Environmental Management, Seoul National University, Seoul, 08826
  • Ho Sang Kang International Environmental Cooperation Center, National Instrumentation Center for Environmental Management, Seoul National University, Seoul, 08826
  • Chaloun Bounithiphonh orest Ecology and Environmental Research Unit, National Agriculture and Forest Research Institute, Vientiane
Keywords: Bolikhamxai Province, Capparaceae, Capparis sect. Monostichocalyx, diversity, ecology

Abstract

Capparis macrantha Souvannakhoummane, Fici & Lanorsavanh sp. nov., a new shrub species characterized by erect or ascending habit, stipular thorns, large lanceolate-elliptic leaves and large flowers in supra-axillary rows, is described and illustrated from the deciduous forest in Nam Kading National Protected Area (central Lao PDR). The new species belongs to Capparis sect. Monostichocalyx Radlk. and is morphologically similar to C. radula Gagnep., a shrub widespread in the Indochinese area, differing in the shorter, straight stipular thorns, larger leaves, larger sepals and petals, higher number of stamens with longer filaments and longer gynophore and ovary. Its affinities with related taxa are discussed and a key is provided for the species of Capparis L. known from Lao PDR. The conservation status of the new species is provisionally assessed as Vulnerable (VU D1).

References

Fici S. 2016. Studies on the genus Capparis L. (Capparaceae) in Lao PDR. Webbia 71: 169–175. http://doi.org/10.1080/00837792.2016.1232928

Fici S. 2017. A taxonomic revision of the genus Capparis (Capparaceae) in New Caledonia. New Zealand Journal of Botany 55: 407–423. https://doi.org/10.1080/0028825X.2017.1361454

Fici S., Bouamanivong S. & Souvannakhoummane K. 2018. Studies on the genus Capparis L. (Capparaceae) in Lao PDR. II: A new species from the Khammouan karst. Webbia 73: 5–7. http://doi.org/10.1080/00837792.2017.1402476

Fici S., Souvannakhoummane K., Lanorsavanh S. & Lamxay V. 2020. Studies on the genus Capparis L. (Capparaceae) in Lao PDR. IV: A new species from the Khammouan Province. Phytotaxa 429: 73–79. https://doi.org/10.11646/phytotaxa.429.1.6

Gagnepain F. 1908. Capparidacées. In: Lecomte M.H. (ed.) Flore générale de l’Indo-Chine. Vol 1: 171–206. Masson et Cie, Paris. https://doi.org/10.5962/bhl.title.59355

Inthakoun L. & Delang C.O. 2008. Lao Flora. A Checklist of Plants Found in Lao PDR with Scientific and Vernacular Names. Lulu Press, Morrisville.

IPNI 2018. International Plant Names Index. Available from http://www.ipni.org [accessed 11 Nov. 2019].

IUCN 2012. IUCN Red List Categories and Criteria: Version 3.1. 2nd ed. IUCN, Gland and Cambridge.

Jacobs M. 1965. The genus Capparis (Capparaceae) from the Indus to the Pacific. Blumea 12: 385–541.

Lee Y.M. 2016. A Checklist of Plants in Lao PDR. Korea National Arboretum, Seoul.

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 Garden Edinburgh, Edinburgh.

POWO 2019. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Available from http://www.plantsoftheworldonline.org/ [accessed 17 Mar. 2020].

Souladeth P., Tagane S., Zhang M., Okabe N. & Yahara T. 2017. Flora of Nam Kading National Protected Area I: a new species of yellow-flowered Strobilanthes (Acanthaceae), S. namkadingensis. PhytoKeys 81: 11–17. https://doi.org/10.3897/phytokeys.81.13203

Souladeth P., Tagane S. & Yahara T. 2019. Flora of Nam Kading National Protected Area V: two new species of Camellia (Theaceae), C. namkadingensis and C. rosacea. Thai Forest Bulletin Botany 47: 82–90. https://doi.org/10.20531/tfb.2019.47.1.12

Souvannakhoummane K., Fici S., Lanorsavanh S. & Lamxay V. 2018. Studies on the genus Capparis L. (Capparaceae) in Lao PDR. III: A new species from the deciduous forest of the Hin Nam No National Protected Area. Webbia 73: 175–177. http://doi.org/10.1080/00837792.2018.1470708

Souvannakhoummane K., Souladeth P., Tagane S., Yang C.-J. & Yahara T. 2019. Flora of Nam Kading National Protected Area VI: Didymocarpus middletonii (Gesneriaceae), A new species from Limestone. Edinburgh Journal of Botany 76: 45–54. https://doi.org/10.1017/S0960428618000264

Srisanga P. & Chayamarit K. 2004. Capparis trisonthiae (Capparaceae), a new species from Thailand. Adansonia, sér. 3 26: 63–66.

Tagane S., Souladeth P., Rueangruea S., Okabe N., Zhang M., Chayer S., Yang C-J. & Yahara T. 2017. Flora of Nam Kading National Protected Area II: 30 new records of Angiosperms for Laos. Edinburgh Journal of Botany 75: 107–116. https://doi.org/10.1017/S0960428617000361

Tagane S., Souladeth P., Zhang M. & Yahara T. 2018. Flora of Nam Kading National Protected Area IV: Two new species of Annonaceae, Monoon namkadingense and Neo-uvaria laosensis. Phytotaxa 336: 82–88. https://doi.org/10.11646/phytotaxa.336.1.6

Thiers B. 2017. Index Hebariorum: 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 10 Oct. 2019].

Thuong S.D., Bach T.T., Choudhary R.K., Tucker G.C., Cornejo X. & Lee J. 2013. Capparis daknongensis (Capparaceae), a new species from Vietnam. Annales Botanici Fennici 50: 99–102. https://doi.org/10.5735/085.050.0119

Thuong S.D., Bach T.T., Choudhary R.K., Tucker G.C., Hai D.V., Quang B.H., Chinh V.T. & Lee J. 2015. Capparis gialaiensis (Capparaceae), a new species from Vietnam. Annales Botanici Fennici 52: 219–223. https://doi.org/10.5735/085.052.0314

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: 195–199. https://doi.org/10.11646/phytotaxa.334.2.8

Zhang M. L. & Tucker G.C. 2008. Capparaceae. In: Wu C.Y., Raven P.H. & Hong D.Y. (eds) Flora of China. Vol. 7: 433–450. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis.

Published
2020-06-01
How to Cite
Souvannakhoummane, K., Fici, S., Lanorsavanh, S., Park, J. H., Kang, H. S., & Bounithiphonh, C. (2020). Capparis macrantha sp. nov. (Capparaceae, Brassicales), a new shrub species from a deciduous forest of the Nam Kading National Protected Area (central Lao PDR). European Journal of Taxonomy, (656). https://doi.org/10.5852/ejt.2020.656