Hyperacanthus sp.
Rubiaceae
| Collection Number | Rogers, Z 1163 |
| Collectors | Z.S. Rogers, R. Ranaivojaona, C. Davidson, S.R. Christoph, F. Ratovoson |
| Identified By | |
| Source | C. Davidson |
| Date | 10 November 2006 |
| Country | Madagascar |
| region | Diana |
| district | Antsiranana |
| Location | Ankarana Special Reserve. Along trail from E boundary of Reserve (Mahamasina), ca. 2-3 km W from trailhead. On calcareous "tsingy" limestone. Specimens preserved in alcohol. |
| Lat/Long | S 12 54 049 E 08 12 54 |