Xylem and phloem are arranged in alternate radii in
I. Dicot leaf
II. Monocot leaf
III. Dicot root
IV. Monocot root
In leaves of monocots and dicots, the vascular bundles are conjoint collateral and closed. In roots, since xylem and phloem are present on separate radii, they are described as radial separate vascular bundles.