Ξ Discladium thouvenotii H. Perrier in Not. Syst. (Paris) 10: 26. 1941.
Typus: MADAGASCAR: Analamazaotra, s.d., Thouvenot 66 (holo-: P [P00391402]!; iso-:K!, P[P00391403]!).
Observations. – Ochna thouvenotii appears to be confined to the eastern escarpment around Moramanga and to near Foulpointe on the East Coast. Differences between this species and O. louvelii which also occurs around Moramanga are described above under the latter species. Ochna thouvenotii differs from O.polycarpa,which isalso found on the easternescarpment, by itslarger leaves (3-4.5 cm × 1-2.5 cm vs. 1.5-3cm × 0.7- 1.5 cm) and flowers with sepals at anthesis> 1.5 cm in length (vs. ca. 1 cmin O. polycarpa).