(c) Epidermis It is usually a single layered structure, presentall over the body surface of the plant. In case of root, it is called epiblema instead of epidermis.
Whereas stele is collective term for vascular tissues in case of vascular plants (pteridophyte gymnosperms and angiosperms).
Endodermis and Pericycle are the part of root or stem encircling vascular strands.
