Most mesophytic plants have leaves with a single upper and lower epidermis, stomata on both surfaces,  have well developed xylem, phloem, palisade and spongy parenchyma. There are some specialized adaptations to light intensity which may be found in mesomorphic leaves.  Xerophytic and hydrophytic leaves on the other hand, show a greater variety of adaptations.

Epidermis, note  stomates and vein.	Transverse section of monocot leaf showing the Kranz structure.

Transverse section of xerophyte leaf.	Transverse section through typical dicot leaf.

Leaf abscission	Conifer leaf, note resin ducts along upper surface.