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Cross-section through the leaf of the great spearwort

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upper epidermis
3  spongy parenchyma
5  air cavities
7  lower epidermis
2  palisade parenchyma
6  vascular bundle

English name: Great spearwort
Scientific name: Ranunculus flammula
Familia: Ranunculaceae
Classis: Dicotyledonas
Phylum: Angiospermae
Regnum: Plantae
This leaf shows hygromorph characteristics (adaptations to a continuously humid environment). The epidermis is thin, monolayered, and the cuticula is extremely reduced. The stomata protrude at the surface on both adaxial and abaxial side. The supporting tissue is reduced.

last modified: 5 Jun 2014