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Transverse section through the leaf of Crassula ovata


wax layer
3  vascular bundle
palisade parenchyma-like tissue
spongy parenchyma tissue
2  epidermis

English name: Jade plant, money tree
Scientific name: Crassula ovata
Familia: Crassulaceae
Classis: Dicotyledonas
Phylum: Angiospermae
Regnum: Plantae

Leaves of succulents are often thick, hard and have a fatty aspect. The chlorenchyma is poorly differentiated. The vascular bundles are more or less randomly spread in the leaf and are sectioned here in all orientations. There are few air cavities and the cells seem to be swollen. The cuticle has an extra wax layer that further limits the loss of water. the stomata are closed during day and open at night. They are therefore not sunk in the epidermis and are present in both adaxial and abaxial regions.

last modified: 5 Jun 2014