| Author | Title | Journal/publisher | Literature ref. no. |
| Robyns, W. (1948) | Cycadaceae | Flore du Congo Belge et du Ruanda-Urundi Volume I 1-4 | 1468 |
Note that the process of capturing references from species to the literature and the reverse may be incomplete.
| Species found: 3 |
| Encephalartos laurentianus |
| Encephalartos poggei |
| Encephalartos septentrionalis |