Bryophyte life cycle.
- Spores develop into haploid protonemata.
- Protonemata produce "buds" that undergo mitosis.
- Buds develop into gametophyte
bearing antheridia or archegonia.
- Sperm swims
to egg in archegonium.
- Fertilized diploid zygote develops into sporophyte embryo.
- Sporophyte emerges from the archegonium.
- The small
sporophyte is dependent on the large
gametophyte.
- Spores develop by meiosis in sporangium.
Review and exercise: 
