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.

摘要同型孢子蕨类的孢子体可经由同子体自、子体两类育统或以无生殖的生，子体又可分为子体自和子体两种。

Most seed orchard theory is based on the assumption that panmixis will occur and that selfing will not be a serious problem.

大多数关于种子园理论，是以假定能发生随机和自花受精而不会成为严重问题为依据的。