homosporous

1.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.

摘要同型类的体可经由同体自、异体两类育系统或生殖的方式产生，异体又可分为异体自和异体异两种方式。