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Detail of the sponge parenchyma cells in a petunia leaf
1 palisade parenchyma cells
3 air cavities
2 spongy parenchyma cells
English name: Petunia
Scientific name: Petunia sp.
Detail view of sponge parenchyma cells of petunia These cells are irregularly shaped. They are separated by large air cavities and often form clusters. Sponge parenchyma cells contain less chloroplasts than palisade parenchyma cells.