Cross-section of part of the foliar limb stained with Alcian blue-safranin and observed with the objective of 40x. The epidermis of most leaves shows dorsoventral anatomy: the upper (adaxial) and lower (abaxial) surfaces. We can observe both surfaces, as well as the mesophyll (constituted by parenchyma) and one of the vascular bundles showing sclerenchyma fibers in the superior and inferior part. We can also distinguish groups of large bulliform cells in the lower epidermis. The zone of the vascular bundle can be observed at higher magnification in other microphotography (zone framed in red)