Study the life cycle of ferns with this set of five slides. Ferns are among the more primitive vascular plants-while they possess true roots and stems, they reproduce by spores rather than seeds. Fern, antheridia, w.m. On prothallium. Fern, archegonia, w.m. On prothallium. Fern, young sporophyte, w.m. Fern, rhizome, c.s. Fern, leaflet, c.s. With sori.