A) interfascicular cambium
B) intrafascicular cambium
C) intercalary meristem
D) phellogen
E) phelloderm
Correct Answer: D
Solution :
Cork cambium or phellogen is a lateral meristem as it is responsible for increase in the thickness of stem. It is secondary in origin and secondary in function. It gives rise to secondary tissues like cork and secondary cortex. The phellogen cuts more cells on the other side and few on the inner side. The outer calls get submerised and form the cork or phellem. The inner cells remain parenchymatous and thus form, the secondary cortex or phelloderm. The cambium present inside vascular bundle is called as intrafascicular cambium or fascicular cambium or vascular cambium. The cells or medullar rays, which lie in the perimeter of the intrafascicular cambium also become active and give rise to cambial strips called inter-fascicular cambium.
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