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 Lily (Lilium) epidermis with elongated epidermal cells plus Stomata. |
Most Epidermal cells do not have well developed Plastids. However Guard Cess typically contain Chloroplasts. |
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Guard Cells from Fuchsia epidermis. Note the Chloroplasts. These have an important role in the opening and closing of the Guard Cells. | ||
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Subsidiary Cells are specialized cells which are often associated with Stomata. They have an active role in the opening and closing of the Guard Cells. | ||
  Stomata of Hawaiian Silversword |
The Guard Cells often have projections from their outer tangential walls which border the Stomatal Pore. These create a microenviroment that acts as a buffer between the external atmosphere and the internal atmosphere of the leaf. This helps to prevent desiccation.
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Anthocyanins are often found in the Vacuoles of Epidermal Cells. They absorb Ultra Violet (UV) light which can damage photosynthetic Cells. New Mango Leaves have a dark red color due to their Anthocyanins. Anthocyanins provide color for Flowers and Fruits. This can attract Pollinators and Disseminators. |
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