Epidermis-1

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Epidermis-1
The Epidermis is the interface between the plant and its environment. Consequently, many adaptations have evolved to foster existence in terrestrial ecosystems. There are four important Epidermal structures in this image. A= Typical Epidermal cell with wavy walls; B=Guard Cells; C= stalk of secretory Trichome; D=Secretory Cells of the Trichome.
*Typical Agave* Leaves** Agave with Inflorescence	Agave is a plant which lives in dry (Xeric) ecosystems. Its Epidermis contains several important adaptations that aid in water retention and light reflection. This white Agave reflects much of the solar radiation that reaches it. This helps to prevent overheating.The reflectance is largely due to Epidermal Wax.
Surface view of Agave epidermis. Note the shape of the typical cells. The Stomata are in the rectangular areas. The Stoma or Stomatal Apparatus is composed of Guard Cells and the Stomatal Pore. Subsidiary Cells may also be present.
Agave Epidermis stained with Toluidine Blue: A Stomata lies at the center of the Image and its Guard Cells are recessed. This is a .