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.
摘要同型孢蕨类的孢
可经由同配
交、异配
交配两类配
系统或以无配
殖的方
,异配
交配又可分为异配
交和异配
异交两种方
。