Fig. 10: Composite cross section of young outer rootcap cells of maize showing development of particles formed from Golgi bodies. Drawn from electron micrographs of Mollenhauer and co-workers (1961). Fig. 11: Cross section of older rootcap cell of maize, after vacuolation, showing development of cell wall. Drawn from electron micrograph of Mollenhauer and co-workers (1961). ga = Golgi apparatus; er = endoplasmic reticulum; gv = Golgi vesicle; gs = ground substance; gp = particle formed from the Golgi apparatus; m = mitochondrion; p = plasmalemma; cw = cell wall; t = tonoplast; v = vacuole.