Root cap is a thimble-shaped or cap-like parenchymatous multicellular strudure which covers the root meristem. The cells of the root cap secrete mudlage. The latter lubricates the passage of root through the soil. Without it, the tender root would be unable to penetrate the hard soil. Cells of the root cap also possess starch grains. Another fundion of the root cap is the protection of the root meristem from fridion of the soil partides. In the process, its outer cells are continuously peded off and replaced by new cells formed from root meristem. In floating aquatic plants the root apices possess loose finger glove-like coverings called root pockets e.g., Lemna, Pistia, Eichhomia. Root pockets fundion as balancers. The root system in hydrophytes is feebly developed and root cap and hairs are absent. In hydrophytes the root system is fundioning chiefly as anchors and a large part of the absorption takes place through the leaves and stems.