| Rubiaceae | |
Melanoxerus antsirananensis
| Kainul. | Candollea 76(1): 107-110, figs. 1, 2 | 2021 |
| Rubiaceae | |
Melanoxerus atropurpureus
| Kainul. | Candollea 76(1): 110-112, figs. 1, 3 | 2021 |
| Rubiaceae | |
Melanoxerus maritimus
| Kainul. | Candollea 76(1): 112-114, figs. 1, 4 | 2021 |
| Rubiaceae | |
Melanoxerus suavissimus
| (Homolle ex Cavaco) Kainul. & B. Bremer | Taxon 63(4): 828 | 2014 |