Cola pseudoclavata

References

1. [1]Protabase - Plant Resources of Tropical Africa. — http://www.prota.org ↩︎An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
2. [2]Field Guide to the Moist Forest Trees of Tanzania. — Lovett J.C.; Ruffo C.K.; Gereau R.E.; Taplin J.R.D · Frontier · http://www.york.ac.uk/res/celp/webpages/projects/ecology/tree%20guide/introduction.htm · ISBN 1-873070-33-0 ↩︎A lovely little book giving a basic identification guide to more than 650 species of trees growing in Tanzania. It is also available to view on the internet.
3. [3]Flora of Somalia — Thulin M. (Editor) · Kew Publishing, London. · 1993 ↩︎Detailed information on the plants of the region, often adding notes on the plants uses.
4. [4]Flora of West Tropical Africa — http://plants.jstor.org/search?st=2025 ↩︎An online flora, not yet complet (2012). Very comprehensive as regards to species covered, but the information on each species is often rather terse.