Dorsiventral leaf (Dicots)
DORSIVENTRAL LEAF: The dorsiventral leaves are found in dicots. In the vertical section of dicot leaf there are mainly divided into three parts. They are. Epidermis Mesophyll Vascular Bundles Epidermis: The upper and lower epidermis of leaf is covered by cuticle. The Adaxial(lower) surface has more number of Stomata than upper surface.Sometimes the upper surface lacks Stomata. Mesophyll: The layer present between the upper and lower epidermis is called as mesophyll. It possess chloroplast and carry out photosynthesis. it contains parenchymatous cells. Mesophyll is two types of parenchymatous cells. -Palisade parenchyma -Spongy parechyma Polisade parenchyma is an elongated cell,arranged vertically and parallel to each other. present on upper side of mesophyll Spongy parenchyma are oval or round loosely arranged situated below the palisade parenchyma extending to the lower epidermis. it contains air cavities.