| Author | Title | Journal/publisher | Literature ref. no. |
| Leonard, J. (1956) | Notulae Systematicae XXI; Observation sur les Genres Oldfieldia, Paivaeusa et Cecchia (Euphorbiaceae africanae))g | Bull. Jard. Bot. Etat Brux. XXVI(4) 235-243 | 1628 |
Note that the process of capturing references from species to the literature and the reverse may be incomplete.
| No species found |