Quintanar, A., Harris, D.J., Nguema, D. and Barberá, P. 2023. Notes on cauliflory, sexual dimorphism and biogeography in Drypetes (Putranjivaceae, Malpighiales) and a taxonomic treatment for D. gabonensis and two new cauliflorous threatened species from Central Africa, D. aphanes sp. nov. and D. cauta sp. nov. European Journal of Taxonomy. 888, 1 (Aug. 2023), 175-202. DOI:https://doi.org/10.5852/ejt.2023.888.2241.