Alejandro Quintanar, Patricia Barberá, David J. Harris (2022)
A taxonomic treatment of Drypetes calvescens and a new endangered species from the western Congolian swamp forest, D. palustris sp. nov. (Putranjivaceae).
Anales del Jardín Botánico de Madrid79: e120.
DOI: 10.3989/ajbm.2615
Martin Cheek, Nouhou Ndam, Andrew Budden (2021)
Notes on the threatened lowland forests of Mt Cameroon and their endemics including Drypetes burnleyae sp. nov., with a key to species of Drypetes sect. Stipulares (Putranjivaceae).
Kew Bulletin76: 223.
DOI: 10.1007/s12225-021-09947-2