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Two new species of Begonia (Begoniaceae) from Bukit Tigapuluh National Park, Sumatra, Indonesia are described. Those are Begonia triginticollium Girm. belongs to Begonia section Bracteibegonia and Begonia dolichocarpa Girm. belongs to Begonia section Petermannia.doaj:9e9772c3a83d4f8db7fe4fff965830a9 fatcat:h2tfnque5jg2lijl57micboi64