Cuticle Layer of a Plant

 Due to transpiration, plants will lose large amounts of water over time through the pores in their leaves. However, certain plants have a waxy cuticle layer. This layer prevents water from going into or out of the leaves of the plant. As you can see in this picture, the waxy cuticle layer composed of cutin that covers the epidermal cells of this leaf will not allow water inside of it therefore, the water rests on the surface of the leaf.