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
孢
可经由同
交、异
交
两类
育系统或以无
生殖
产生,异
交
又可分为异
交和异
异交两种
。