In vascular plants the diploid sporophyte is the dominant phase and in the ferns, for example, the gametophyte is a small prothallus.
In vascular plants the diploid sporophyte is the dominant phase and in the ferns, for example, the gametophyte is a small prothallus.
在维管植物（蕨类）中二倍体的孢子体占生活史的主要部分，配子体仅为原叶体。