Question

The young dicot stem medullary rays are present between

Answer 1

In dicot stems, the cells of cambium present between primary xylem and primary phloem are the intrafasicular cambium. The cells of medullary rays, adjoining these intrafascicular cambium become meristematic and form the interfascicular cambium.

Explanation:

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Answer 2

The young dicot stem medullary rays are present between the vascular bundles

• The noticeable existence of collateral, conjoint and free vascular bundles with a cambium strip among both the xylem and phloem.
• In dicot stems, both xylem and phloem exhibit active existence of cambium strip which is the interfascicular cambium and is derived from medullary cells.
• The parenchyma, collenchyma, endodermis, pith and pericycle can be properly separated by ground tissue. In between the vascular bundles, medullary rays are located.