1. T. Plowman and N. Hensold "Brittonia." 56, "Names, types, and distribution of neotropical species of Erythroxylum (Erythroxylaceae)." 1 (2004)
2. F. Bossuyt, M. Meegaskumbura, N. Beenaerts, et al. "Science." 306, "Local endemism within the Western Ghats–Sri Lanka biodiversity hotspot." 479 (2004)
3. G.A. Arnott, "Walker-." "Pugillus plantarum Indiae Orientalis [" (1837a)
4. G.A. Arnott, "Nova Acta Physico-Medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum." 18, "Walker-" 319 (1837b)
5. F. Badré, "Flore du Gabon." 21, "Érythroxylacées." 49 (1973)