Divided by parallel planes; as, zonate tetraspores, found in certain red algæ.

divided by parallel planes, e.g., zonate tetraspores, found in certain species of red algae

(Gr. zônê: belt) adj. Marked or colored in circular rings or zones. Also zonated.

marked with zones; having concentric rings, like a target.

Having concentric bands of color or growth.