Landolphia calabarica

References

1. [1]The Useful Plants of West Tropical Africa. — Burkil. H. M. · Royal Botanic Gardens; Kew. · 1985 - 2004 ↩︎Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
2. [2]Lost Crops of Africa. Vol. 3 Fruits. — National Academy Press · 2008 · ISBN 030910596X ↩︎Masses of information on about 70 species of plants that have been utilized as fruits in Africa.