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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.
