Q.Tapetum is found in

The anther, the fertile part of a stamen, is typically bilobed and dithecous, each theca having two microsporangia, giving four microsporangia (pollen sacs) per anther in transverse section. Each microsporangium is bounded, from outside inward, by the epidermis, endothecium, three middle layers, and an innermost nutritive tapetum that nourishes the developing pollen. Enclosed within is a mass of sporogenous tissue whose cells (microspore mother cells, or pollen mother cells, PMCs) are diploid and undergo microsporogenesis: each PMC undergoes meiosis to produce a tetrad of four haploid microspores. As the anther matures the microspores separate, the tetrads dissociate, and each m …