Small pieces of gametophyte tissue called gemmae are located inside these splash cups. Rain drops splash gemmae out of the gemma cup. Each gemma can form a new gametophyte thallus by mitosis. This is asexual reproduction. Air pores are located on the dorsal surface.
Female plants form archegoniophores and male plants form antheriophores.
Each is connected to the top of the antheridiophore by a canal. Raindrops containing sperm cells land on the archegoniophores. These are visible on the right-hand branch. The egg is located in the venter, in this case, above the neck canal. Fertilization occurs within the archegonium.