Allmost all tropical rain forest trees have mycorrhixal relationships. Without them, it would be impossible for the trees to survive. Knowledge of these tree-fungi associations, their diversity and synamics is therefore a prerequisite for sustainable forest management. Nerre Awana Onguene, a cameroonian soil biologist, conducted research on mycorrhizal associations in Cameroon and found an impressive siversity of myzorrhizal associations and fungi. He identified more than 125 species of ectomycorrhizal fungi (mushrooms). Some of these are edible and a potential source for forest-dwelling people. The study makes clear that shifting cultivation severely affects the fungi. this makes the researcher to suggest that the local population should save the ectomycorrhizal host trees when opening up agricultural fields, just like they do with fruit trees or socially important tree species.