Thanks guys.

And Canoedogs: It's funny you should mention that; the local guys I worked with were also big into carving spoons (sometimes with only a bowie knife!) and so on and I told them about how birch trees can provide a safe drink, great carving wood and our equivalent to torche indigène, as well as material to build a canoe if you're lucky and skilled enough.

I just got my hands on this incredible book: woody plants of western african forests which covers 2200 species of lianes, trees and shrubs. Found out that the kapok-type tinder I was using is called Rhodognaphalon brevicuspe.

Some other edible fruits:
http://www.facebook.com/photo.php?pid=11373252&l=8615e384ca&id=830270462
http://www.facebook.com/photo.php?pid=11373253&l=75158f1e0a&id=830270462
http://www.facebook.com/photo.php?pid=11373246&l=2751e1ccbb&id=830270462