The endodermis is the central, innermost layer of compact living cells in some land plants in which the spaces between the outer ring of endodermal cells are impregnated with hydrophobic substances (Casparian Strip) to restrict apoplastic flow of water to the inside.
The endodermis is the central, innermost layer of cortex in some land plants. It is comprised of compact living cells surrounded by outer ring of endodermal cells that are impregnated with hydrophobic substances (Casparian Strip) to restrict apoplastic flow of water to the inside.