The outermost layer of the vascular cylinder of a root is ca… Post author By Anonymous Post date March 25, 2025 Related Posts:The outermost layer of the vascular cylinder of a…The outermost layer of the vascular cylinder of a…The outermost layer of the root is composed of ← ____ is to xylem as ____ is to phloem. → 84. The ____ are collectively called the calyx.