A sporophyte is the diploid generation of a plant or alga. In the alternation of generations, plants have life cycles that include both a haploid gametophyte generation and a diploid sporophyte generation. In gymnosperms and angiosperms, the sporophyte generation is the most pronounced phase. Pictured is an angiosperm. The representation of the gametophyte generation in angiosperms is very limited; it can only be found in pollen and the embryo sac. Sporophytes produce haploid spores which develop into gametophytes. The gametophytes produce gametes by mitosis, and the fusion of male and female gametes produces a diploid zygote which then develops into a sporophyte.