anisospory

Anisospory is a reproductive phenomenon in plants where a single sporangium produces spores of different sizes. This is an unusual occurrence primarily seen in some bryophytes. Typically, these size differences correlate with the spores' developmental fate: smaller spores develop into male gametophytes, while larger spores develop into female gametophytes. This contrasts with homospory, where all spores are morphologically identical, and heterospory, where different sporangia produce distinct spore types. Spores are reproductive cells that can develop into new individuals without fusion with another reproductive cell, common in bacteria, fungi, algae, and plants.1234