Homosporous ferns produce sporophytes by intra gametophytic selfing, inter gametophytic mating, or apogamy.Gametangium ontogeny, genetic load, and ploidy affect the mating system of each species.
摘要同型孢子蕨类的孢子体可经由同配子体自交、配子体交配两类配育系统或以无配生殖的方式产生,
配子体交配又可
配子体自交和
配子体
交两种方式。