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In the forest area of Tlemcen, green oak on its large expanse is abundantly represented in two forms: simple coppice and trees on stump. This study, try to verify the effect of the silvicultural treatments and exposure on leaf morphology. To this end, we tested this hypothesis on 240 mature leaves of these two populations collected from the four cardinal directions. The results show that the length of midrib is 4.85 cm in the case of high trees, 4.80 cm in the coppices. The surface ofdoi:10.5281/zenodo.810315 fatcat:2nsf4vtzirf7hatqfut62iv2g4