A fern life cycle starts with fertilization of egg and sperm: Later stages comes in cycle are Sporophyte embryo, Gametophyte petals and developing Sporophyte leaves, mature Sporophyte with fond and then Sporangium. From Sporangium onwards, Meiosis starts with spores formation then young gametophyte which develops into Antheridium and this Antheridium finally produces egg and sperm to again start the fertilization and thus cycle continues.