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Article
Published: 2019-06-26

A revision of Begonia sect. Petermannia on Sumatra, Indonesia

Herbarium Bogoriense, Botany Division, Research Center for Biology, Indonesian Institute of Sciences, Cibinong Science Center (CSC), Jl. Raya Jakarta-Bogor Km 46, Cibinong, Bogor 16911, Indonesia
Herbarium Bogoriense, Botany Division, Research Center for Biology, Indonesian Institute of Sciences, Cibinong Science Center (CSC), Jl. Raya Jakarta-Bogor Km 46, Cibinong, Bogor 16911, Indonesia
Royal Botanic Garden Edinburgh, 20a Inverleith Row, Edinburgh, EH3 5LR, U.K.
Taxonomy biodiversity endemism typification Begonia Eudicots

Abstract

Begonia sect. Petermannia is revised for Sumatra, leading to the recognition of 14 species, nine of which are placed in a molecular phylogeny using nuclear ribosomal ITS data, showing they belong to two clades, intermixed with species from Java and Borneo. One new species is described, B. kemiriensis Girm & M.Hughes, from Gunung Kemiri, Aceh Province.