A new species, Begonia yapenensis M.Hughes, in Begonia section Symbegonia (Begoniaceae) is described and diagnosed against Begonia sympapuana. The new species is endemic to Yapen Island, Papua, Indonesia, and is currently known from a single collection.
Mark Hughes, Sadie Barber, Charlie D Heatubun and Janet Gagul. 2015. Begonia yapenensis (sect. Symbegonia, Begoniaceae), A New Species from Papua, Indonesia. European Journal of Taxonomy. 119:1-6.