Periderm is produced from
Cork cambium
Procambium
Secondary cortex
Vascular cambium
The bark of tree comprises
$A$ : Intercalary meristems are commonly located at the base of leaves, above the nodes or below the nodes.
$R$ : Vacuoles are large sized in the cells of intercalary meristem.
Describe vascular cambium responsible for secondary growth in detail.
Give one basic functional difference between phellogen and phelloderm.
What do hardwood and softwood stand for?