Pericycle is present in the form of semilunar patches of sclerenchyma over vascular bundles in

In dicot stems like sunflower, the pericycle is multilayered and present as half-moon shaped patches over the vascular bundles and named as bundle caps. In roots, the pericycle is single layered and parenchymatous. In monocot stem like maize the pericycle is not organized.