Cross-section of the foliar limb (at the level of the central nerve) stained with safranin-light-green and observed with the objective of 10x. In the microphotography we can see the projection of the nerve, the epidermis (yellow) , the mesophyll (showing the spongy and palisade parenchyma), and the elements of the xylem (located in the central and secondaries vascular bundles)