homosporous
To see an animation of the lifecycle of a fern and to test your knowledge, go to the website http://openstaxcollege. org/ l/fern_life_cycle . Most ferns produce the same type of spores and are therefore homosporous. The diploid sporophyte is the most conspicuous stage of the lifecycle. On the underside of its mature fronds, sori singular, sorus form as small clusters where sporangia develop Figure 25.23 .