: having the phloem surrounding the xylem —used of certain concentric vascular bundles — compare amphivasal.

What are Amphicribral bundles?

(b) Amphicribral bundle:

A vascular bundle in which phloem encircles the central strand of xylem is called as amphicribral bundle, also known as hadrocentric bundle. ... The concentric bundles, either amphivasal or amphicribral, are closed as there is no cambium in between xylem and phloem.

What is Amphivasal and Amphicribral?

What is the Difference Between Amphicribral and Amphivasal? Amphicribral vascular system has a central strand of xylem that is surrounded by a ring of phloem. In contrast, amphivasal vascular system has a central strand of phloem that is surrounded by a ring of xylem.