(redirected from coleorhizae)
Also found in: Dictionary, Medical.


The sheath surrounding the radicle in monocotyledons.



a calyptrate sheath that surrounds the primary root, enclosed in the seed of a plant. It performs a protective function. The coleorhiza is characteristic of cereal grains; it is also present in eucalypti. The growing rootlets rupture the seed (caryopsis), causing it to sprout.

Mentioned in ?