Choose incorrect sentence :

  • A

    Phellogen, phellem and phelloderm are collectively known as periderm

  • B

    Secondary growth occurs in stems and roots of gymnosperm however, secondary growth does not occur in monocotyledons

  • C

    Phellogen is made of narrow, thin walled and nearly rectangular cells

  • D

    Annual rings seen in a cut stem indicate capacity of absorption of water

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