What are the radially placed parenchymatous cells between vascular bundles called?
Epidermis
Hypodermis
Medullary rays
Endodermis
Medullary rays are the radially placed parenchymatous cells that occur between the vascular bundles in the stem. They play a role in the radial conduction of water, nutrients, and other substances across the stem. Medullary rays also help in providing structural support to the stem. Hence, option 3 is the correct answer.