Intrafascicular cambium is situated in

Bark refers to all tissues exterior to the

In old dicot stems,a major part of the wood is filled up with tannins,resins,gums,etc. This part of the wood is called:

The collective name for cork cambium and phelloderm is

Select the wrong statements.
$I.$ Primary and secondary phloem gets crushed during secondary growth.
$II.$ During secondary growth,primary xylem remains more or less intact.

The epidermis (or periderm) originates from: