intra-

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.

摘要同型蕨类体经由同配体自交、异配体交配两类配系统或以无配生殖方式产生，异配体交配为异配体自交和异配体异交两种方式。