|1.||Compare microspore Also called: macrospore the larger of the two types of spore produced by some spore-bearing plants, which develops into the female gametophyte|
|2.||the cell in flowering plants that gives rise to the embryo sac|
|megaspore (měg'ə-spôr) Pronunciation Key
One of the two types of haploid spores produced by a heterosporous plant. Megaspores develop into female gametophytes and are usually larger than microspores.