Cross section of a leaf of Nerium oleander - upper epidermis with thick cuticle - UWDC - UW-Madison Libraries
Stomatal crypts – PLANT STOMATA ENCYCLOPEDIA
Midrib of Nerium oleander in cross section - UWDC - UW-Madison Libraries
Oleander leaf. Light micrograph of a cross-section through the midrib of an oleander (Nerium oleander) leaf. The upper and lower epidermis on the surf Stock Photo - Alamy
Cross section of a leaf of Nerium oleander - a xeromorphic plant - UWDC - UW-Madison Libraries