Microsporangium Created 2026-10-20 Updated 2026-11-05
A microsporangium is a sporangium in which microspores are produced. In a heterosporous plant, those microspores develop into male gametophytes; production of sperm is a later step.
In a flowering plant, the anther contains microsporangia. Distinguishing the enclosing structure, the microspore and the mature pollen grain prevents several different developmental stages from being treated as synonyms.