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.

摘要同型孢子蕨类孢子体可经由同配子体、配子体配两类配系统或以无配生殖产生，配子体配又可分为配子体和配子体两种。