The cork cambium,cork and secondary cortex ar | vedclass

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(B) The $Periderm$ is a secondary protective structure that replaces the epidermis in older stems and roots. It is composed of three distinct layers:

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Periderm

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(B) The $Periderm$ is a secondary protective structure that replaces the epidermis in older stems and roots. It is composed of three distinct layers: $1$. Cork cambium $(Phellogen)$: The lateral meristematic tissue. $2$. Cork $(Phellem)$: The outer layer produced by the cork cambium. $3$. Secondary cortex $(Phelloderm)$: The inner layer produced by the cork cambium. Therefore,the collective term for these three tissues is $Periderm$.

The cork cambium,cork and secondary cortex are collectively called

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