26. What constitutes the cambial ring?

 

Interfascicular and intrafascicular cambia together form a ring of cambium called cambial ring. It is formed due to the meristematic activity of cambium.
The cambium which is found between the xylem and phloem is called fasicular or intrafasicular cambium and the newly formed cambium between the two vascular bundle is known as interfasicular-cambium. Both type of cambium combine to form the cambial ring.