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, the mesophyll (showing the spongy and palisade parenchyma), and the elements of the xylem (located in the central and secondaries vascular bundles). Details of the vascular bundle and the mesophyll are observed in other microphotographies (zones framed in red and blue, respectively)