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
子体自
、异子体两类育系统或以无生殖的方式产生，异子体
可分为异子体自和异子体异两种方式。
