What is heterospory give an example?

Answer: The development of spores with diverse sexes and sizes even by sporophytes of terrestrial plants is referred to as heterospory. The megaspore, which is wider, is female, while the autocratic, which is smaller, is male. In various plant families, including clubmosses, arborescent horsetails, and progymnosperms, heterospory separately developed from isospory during the Devonian period. This took place as a result of how the timeframe of sex differentiation evolved.

For instance, male and female pine cones, Selaginella, and Salvinia.