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.

摘孢子蕨类的孢子体可经由配子体自、配子体配两类配育统或以无配生殖的方式产生，配子体配又可分为配子体自配子体两种方式。

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配自花受精而不会成为严重问题为依据的。