A microsporangium is also called an anther or microsporophyll.
In flowering plants (angiosperms), the microsporangia are located within the anthers, which are part of the stamen, the male reproductive structure. The stamen consists of the filament (a stalk) and the anther. Each anther typically has two lobes, and each lobe contains two theca, which are essentially the microsporangia. These microsporangia are the sites where microsporogenesis (the formation of microspores) and microgametogenesis (the development of the male gametophyte or pollen grain) occur.
Therefore, while 'anther' most commonly refers to the entire pollen-bearing structure, the microsporangium is the more specific term for the sac-like structure within the anther where pollen grains develop. The term 'microsporophyll' is a broader term referring to a leaf-like structure bearing microsporangia.
