What Is The Role Of Spores In The Fern Life Cycle?

What Is The Role Of Spores In The Fern Life Cycle? Spores are produced on the underside of mature plants. These will germinate and grow into small, heart-shaped plants called gametophytes. The gametophytes produce both sperm and egg cells, and will fertilize itself, or others. Once the fertilization occurs, the adult fern will begin growing.