1. Medicinal and magical plants of Southern Africa: an Annotated checklist;Arnold,2002
2. The living fossils of Africa's biodiversity under threat. Can the most critically endangered Encephalartos cycads be saved from extinction?;Coetzer;Encephalartos,2005
3. Quantifying the trade in cycads (Encephalartos species) in the traditional medicine markets of Johannesburg and Durban, South Africa;Cousins;Economic Botany,2011
4. Ex situ conservation of Stangeria eriopus (Stangeriaceae) at the Durban Botanic gardens, South Africa;Crouch;Encephalartos,2000
5. Encephalartos woodii — the first historically documented ethnomedical plant casualty in southern Africa;Crouch;Encephalartos,2003