Sentence Examples


  • This is the phellogen, Periderm.
  • The phellogen derives its name from the fact that its external product is the characteristic tissue known as cork.
  • The internal tissue formed by the phellogen is known as phelloderm, and consists usually of ordinary parenchyma.
  • The phellogen may arise, in the first place, in any tissue of the axis external to the actual vascular tissuesi.e.
  • The extent of development of the phelloderm is dependent upon whether the phellogen has a superficial or a deep-seated origin.

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