CANNON 



PLATE 5 



Fig. 



13. A young specimen of betoum in the midst of a protecting jujube, at the Daya 



of Tilrempt. 



Fig. 14. Leaf and shoot habit of the jujube Fig. 15. Leaves of the betoum (Pistacia atlantica), 

 (Zizyphus lotus). Daya of Tiltempt. from the Daya of Tilrempt. 



