Sentence Examples


  • Stomata are often absent, absorption and excretion of gases in solution being carried on through the epidermal layer.
  • In a few cases there is a special surface or epidermal layer, but usually all the outer layers of the stem are composed of brown, thick-walled, lignified, prosenchymatous, fibre-like cells forming a peripheral stereom (mechanical or supporting tissue) which forms the outer cortex.
  • Mention may be made here of a class of epidermal organ, the hydaihodea, the wide distribution and variety of which have been revealed by recent research.
  • In one type they may take the form of specially-modified single epidermal cells or multicellular hairs without any direct connection with the vascular system.
  • The epidermal, conducting and strengthening tissues show on the other hand considerable modifications both in form and structure.