Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Chapter 38 Plant Reproduction & Biotechnology Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings "corpse flower" Rafflesia arnoldii Titan Arum (Amorphophallus titanum) Copyright ? 2005 Pearson Education, Inc. publishing as Benjamin Cummings Alternation of generations in angiosperms ? dominant sporophyte generation (2n) ? produces haploid spores (by meiosis) that develop within flowers (in anthers or ovaries) ? haploid spores develop (by mitosis) into multicellular haploid gametophytes ? male gametophytes = pollen grains ? female gametophytes = embryo sacs ? Pollination enables gametes to come together within a flower