Fig. 10.4-4. Transverse section of olive leaf (Olea purpurea). This epidermis has peltate trichomes, trichomes that have a stalk (between diagonal arrows) and a flat disk-shaped top (between vertical arrows). This is in the lower epidermis, and the upper end of the stalk is embedded between ordinary epidermis cells. The ordinary epidermis cells are a bit difficult to see because there is so much material on either side of them: the material above them is leaf mesophyll, and the material below them are the tops of other trichomes. Because they have such wide, disk-shaped tops, most sections cut through just the tops and only occasionally catch a stalk. See the next figure for a low magnification view of many trichomes on this leaf.