Tunica differs from corpus in
Position
Rate of growth
Plane of division
Region of activity
In stem which layer forms epidermal tissues
Tyloses are
$A$ : According to Clowes, there are three histogens in monocot root.
$R$ : In dicot roots, innermost groups of initials form root cap.
Intercalary meristem results in
Derivatives of the secondary meristem in the steler region are