Search in gallery

Back to Medium sized version | Without labels

Cross-section through all layers an oleander leaf

Legend:

1  cuticle
3  palisade parenchyma
4  spongy parenchyma
5  intercellular space in spongy parenchyma
7  lower epidermis
8  vacity
9  hairs
2  upper epidermis
6  small vascular bundle
10  stoma

English name: Oleander
Scientific name: Nerium oleander
Familia: Apocynaceae
Classis: Dicotyledonas
Phylum: Angiospermae
Regnum: Plantae

To prevent dangerous loss of water through evaporation, oleander leaves have a thick multilayered upper epidermis. In addition, the stomata located at the opposite, abaxial side, are engrooved in crypts (cavities) containing hairs. Also the underside contains palisade parenchyma.