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Further discoveries in the ever-expanding genus Begonia (Begoniaceae): fifteen new species from Sumatra

Mark HUGHES, Deden GIRMANSYA & Wisnu Handoyo ARDI

en European Journal of Taxonomy 2015 - Pages 1-40 (EJT-167)

Publié le 21 décembre 2015

Further discoveries in the ever-expanding genus Begonia (Begoniaceae): fifteen new species from Sumatra

Fifteen new species of Begonia L. from Sumatra are described and illustrated, in Begonia sect. Bracteibegonia (B. beludruvenea M.Hughes sp. nov. and B. jackiana M.Hughes sp. nov.), B. sect. Petermannia (B. harauensis Girm. sp. nov.), B. sect. Platycentrum (B. leuserensis M.Hughes sp. nov.), B. sect. Reichenheimia (B. fluvialis M.Hughes sp. nov., B. halabanensis M.Hughes sp. nov., B. karangputihensis Girm. sp. nov., B. kemumuensis M.Hughes sp. nov., B. korthalsiana Miq. ex M.Hughes sp. nov., B. kudoensis Girm. sp. nov., B. lilliputana M.Hughes sp. nov., B. olivacea Ardi sp. nov., B. raoensis M.Hughes sp. nov., B. simolapensis Ardi sp. nov.) and B. sect. Sphenanthera (B. pseudoscottii Girm. sp. nov.). Using the International Union for the Conservation of Nature criteria, 6 are considered to be Least Concern, 5 Vulnerable and 4 Data Deficient. A key to 58 of the 63 currently accepted Begonia species in Sumatra is provided.

Mots-clés :

Begonia, new species, limestone, Sumatra, taxonomy.

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