What is microsporangium? Where it is located? Show a labelled diagram.
Microsporangium is the sporangial structure which contains microspores which are the pollen sacs giving rise to male gametes in an angiosperm.
T.S of anther shows the four lobes forming the tetragonal structure. In the corner of each lobe is the microsporangium.
In the young stage, microsporangium is surrounded by a multi-layered wall consisting of the epidermis, endothecium and the tapetum.The centre is occupied by sporogenous tissue.