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Sclereid in the chlorenchym of the leaf of a water lily
3 lumen of a sclereid
4 cell wall with spikes
2 air cavity (intercellular space)
English name: Water lily
Scientific name: Nymphaea sp.
The large air cavities at the lower side of the leaf of a water lily contain sclereids. These are fiber-like, branching epidermal cells that make the leaf less attractive to visitors like leaf-eating insects. Therefore the cell lumen is small and the cell walls are strong and thick and exhibit protruding lobes at their surface, which are very hard.