Boswellia frereana, Boswellia serrata.
Boswellia frereana Birdw. Burseraceae.
Tropics of Africa. Though growing wild, the trees are carefully watched and even sometimes propagated. The resin is used in the East for chewing as is that of the mastic tree.
Boswellia serrata Roxb. Frankincense Tree.
India. In times of famine, the Khnoods and Woodias live on a soup made from the fruit of this tree.