Not an accepted name (status: rejected).
The accepted name is
Pigea decaryana (H.Perrier) P.I.Forst., 2021.
Afrohybanthus decaryanus
(H.Perrier) Flicker, 1950
2% complete
No common name
Mém. Inst. Sci. Madagascar, Sér. B, Biol. Vég. 2: 312 (1949 publ. 1950)
There is no corrections for Afrohybanthus decaryanus yet.