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  4. What are secondary medullary rays?

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Q. What are secondary medullary rays?

NTA AbhyasNTA Abhyas 2020Anatomy of Flowering Plants

Solution:

During secondary growth, at some places, the cambium forms a narrow band of parenchyma, which passes through the secondary xylem and the secondary phloem in the radial directions. These are the secondary medullary rays.