Template:Hallé, 1978a
- Halle, N. 1978. Illustration of two rare Balanophoraceae of Equatorial Africa belonging to the genera Chlamydophytum Mildbr. and Balanophora Forst. [Illustration de deux rares Balanophoracees d’Afrique Equatoriale appartenant aux genres Chlamydophytum Mildbr. et Balanophora Forst.] Adansonia 17: 249–261. PDF