Alternation of generation mature sporophyte fertlization DIPLOID menos (within (witmn HAPLOID anther ovary) (eggs spor减数孢子(n) emale gametophyte Figure 21.3 Alterration of generations in the life cycle of lowering plants The sporophyte and the gametophytes are multicelled bodies. produced by way of mitosiAlternation of generation 减数孢子（n)