| Author | Title | Journal/publisher | Literature ref. no. |
| Petit, E. (1958) | Polygalaceae | Flore du Congo Belge et du Ruanda-Urundi Volume VII 238-286 | 1503 |
Note that the process of capturing references from species to the literature and the reverse may be incomplete.
| Species found: 4 |
| Polygala albida subsp. stanleyana |
| Polygala erioptera |
| Polygala sphenoptera |
| Securidaca longepedunculata |