A vascular bundle having phloem on either side of the xylem

Options

(a) Bicollateral
(b) Collateral
(c) Radial
(d) Concentric

Correct Answer:

Bicollateral

Explanation:

Bicollateral vascular bundles have phloem both on the outer and inner side of xylem.All the three lie on the same radius. Vascular cambium is present on both outer and inner sides of xylem.It occurs mainly in cucurbitaceae.Besides also present in some members of solanaceae,convolvulaceae.