Hughes, M. and Takeuchi, W. 2015. A new section (Begonia sect. Oligandrae sect. nov.) and a new species (Begonia pentandra sp. nov.) in Begoniaceae from New Guinea. Phytotaxa. 201, 3 (Mar. 2015), 239–239. DOI:https://doi.org/10.11646/phytotaxa.201.3.9.