Tebbitt, M. C.; Andrada, A. R.; Kollmann, L. J. C.; Moonlight, P. W. TAXONOMY OF BEGONIA WOLLNYI HERZOG AND BEGONIA ARROGANS IRMSCH. Edinburgh J. Bot. 2018, 75 (2), 215-226. https://doi.org/10.1017/S0960428618000069.