Plant cuticle
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A plant cuticle is a protecting film covering the outermost skin layer of leaves, young shoots and other aerial plant organs that have no periderm. The film consists of lipid and hydrocarbon polymers
Water beads on the waxy cuticle of kale leaves
Stoma
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In botany, a stoma, also called a stomate, is a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange between the internal air spaces of the leaf and t
Stoma in a tomato leaf shown via colorized scanning electron microscope image
A stoma in horizontal cross section
The underside of a leaf. In this species (Tradescantia zebrina), the guard cells of the stomata are green because they contain chlorophyll while the epidermal cells are chlorophyll-free and contain red pigments.
Electron micrograph of a stoma from a bok choy (Brassica chinensis) leaf