Botany - Sexual Reproduction in Flowering Plants Question with Solution | TestHub

Structure of microsporangium: In a transversesection, a typical microsporangium appears nearcircular in outline. It is generally surrounded by four wall layers the epidermis, endothecium, middle layers and the tapetum. The outer three wall layers perform the function of protection and help in dehiscence of anther to release the pollen. The innermost wall layer is the tapetum. It nourishes the developing pollen grains. Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.