Rhizoids anchor the heart shaped prothallium where the egg, in the archegonium, and sperm, in the antheridium and then produced.
Fertilization occurs and the formation of a zygote, sporophyte and then finally a fronds develop.
From the fronds sporangium that are present in the sori, the dark spots on the back sides of the fronds, produce spores that are the product of meiosis thus repeating the cycle again.