The vascular cambium normally gives rise to
Vascular cambium cuts off secondary xylem towards pith and secondary phloem towards periphery. Vascular cambium is lateral meristem and take part in secondary growth. It produces secondary xylem, secondary phloem and secondary medullary rays.
Primary phloem develop from procambium
Periderm includes phellem, phellogen & phelloderm
Phelloderm arise from phellogen (Cork Cambium)