Research Paper

Two new species of Begonia L. (Begoniaceae) from central Laos

Keooudone Souvannakhoummane, Soulivanh Lanorsavanh, Vichith Lamxay

Published on: 09 July 2018

DOI: 10.6165/tai.2018.63.188

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2018 vol.63 no.3 pp.188-194


Two new species of Begonia are described and illustrated from Hin Nam No National Protected Area in the Khammouan Province, Central Laos. Begonia hinnamnoensis Souvann. & Lanors. and Begonia khammouanensis Souvann. & Lamxay, both belonging to Begonia sect. Diploclinium (Lindl.) A. DC. The two new species are endemic to the Khammouan limestone karst. The provisional IUCN status of both new species is here assessed as ‘Vulnerable’.

Keyword: Begonia hinnamnoensis, Begonia khammouanensis, Begoniaceae, Limestone flora, Laos, Taxonomy