Curraniodensron Merrill = Quintinia A. de Candolle Dedea Baillon = Quintinia A. de Candolle Idenburgia Gibbs = Sphenostemon Baillon Nouhuysia Lauterbach = Sphenostemon Baillon Paracryphia Baker f. Quintinia A. de Candolle Sphenostemon Baillon
For synonymy, see Dickison and Lundberg (2016) and Thiv (2016).