Quintanar, A. ., Barberá, P. . and Harris, D. J. . (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 Madrid, 79(1), p. e120. doi: 10.3989/ajbm.2615.