| Rubiaceae | |
Poecilocalyx crystallinus
| N. Hallé | in Fl. Gabon 12: 232 | 1966 |
| Rubiaceae | |
Poecilocalyx schumannii
| Bremek. | Bot. Jahrb. Syst. 71: 221 | 1920 |
| Rubiaceae | ** |
Poecilocalyx setiflorus
| Bremek. | | |
| Rubiaceae | |
Poecilocalyx setiflorus
| (R.D. Good) Bremek. | Bot. Jahrb. Syst. 71: 221 | 1940 |
| Rubiaceae | |
Poecilocalyx stipulosa
| (Hutch. & Dalziel) N. Hallé | Adansonia, n.s. 4: 238 | 1964 |