In bryophytes the sexual reproduction occurs by the formation of the gametangiophore. The female gametangiophore is also known as the archegoniophore. The archegoniophore bears the female sex organs archegonia are borne inside a pit like cavity called as the archegonial chamber. The archegoniophore are produced by the female plants. The sporophyte is formed inside the archegoniophore since the fertilization occurs in side it. Archegoniophore is characteristics of some of the liverworts.