in Anatomy of Flowering Plants by

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The important functions of epidermal cells are:

  1. It acts as protective layer which protects the internal tissue.
  2. The depositions of cutin, wax, oils, resins, lignin etc. also helps in protection.
  3. The presence of sharp and stiff hairs protects the plants from grazing
  4. In certain group of plants possess chloroplast which there by manufactures food.
  5. The xerophytic plants stores water and food materials in the form of mucilaginous materials.