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Cross-section through all layers an oleander leaf

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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.

http://www.vcbio.science.ru.nl/en/image-gallery/show/PL0146/print/

last modified: 5 Jun 2014