This one does not belong to ground tissue system
A. Passage cells
B. Bundle caps
C. Companion cells
D. Albuminous cells
Passage cells are cells of root endodermis without casparian thickenings. Bundle caps are pericycle patches present over vascular bundles of Dicot stems. These two belong to ground tissue system. Companion cells and Albuminous cells belong to phloem (vascular tissue system).