Bulletin of the British Museum (Natural History) Botany - British Museum (Natural History) (The Museum, 1951)

Bulletin of the British Museum (Natural History) Botany - British Museum (Natural History) (The Museum, 1951)

Bulletin of the Natural History Museum. Botany series - Natural History Museum (London, England) (The Natural History Museum, 1998)

Bulletin of the Natural History Museum. Botany series - Natural History Museum (London, England) (The Natural History Museum, 1998)

Check-list des plantes vasculaires du Gabon Checklist of Gabonese vascular plants - Breteler, F. J. (Franciscus Jozef), 1932 - (NBGB, 2006)

Journal of South African Botany - National Botanic Gardens of South Africa. (National Botanic Gardens of South Africa, 1964)

Mémoires du Muséum national d'histoire naturelle. Série B, Botanique - Muséum national d'histoire naturelle (France) (Ed. du Museum, 1971)

Mémoires du Muséum national d'histoire naturelle. Série B, Botanique - Muséum national d'histoire naturelle (France) (Ed. du Museum, 1971)

Mémoires du Muséum national d'histoire naturelle. Série B, Botanique - Muséum national d'histoire naturelle (France) (Ed. du Museum, 1971)

Mémoires du Muséum national d'histoire naturelle. Série B, Botanique - Muséum national d'histoire naturelle (France) (Ed. du Museum, 1971)