| Author | Title | Journal/publisher | Literature ref. no. | 
| Wilmot-Dear, C.M. (1991) | Ulmaceae | Flora Zambesiaca 9(6) | 178 | 
Note that the process of capturing references from species to the literature and the reverse may be incomplete.
| Species found: 4 | 
| Celtis africana | 
| Celtis gomphophylla | 
| Chaetachme aristata | 
| Trema orientale |