↑ In non-vascular plants, the principal generation phase is often the gametophyte, which is haploid with one set of chromosomes per cell."A linear sequence of extant families and genera of lycophytes and ferns" (PDF). "A classification for extant ferns" (PDF). "A new classification and linear sequence of extant gymnosperms" (PDF). In seed-bearing plants, seeds are carried in fruits, which are created from the ovaries of flowers. In Phylum Lycophyta, spores are produced in the sporophytes. Washington, D.C.: Smithsonian Institution Press. In vascular plants, the generation is dominant. or non-dominant depending on the type of. Gametophyte is a multicellular haploid generation found in plant and algae.
In these lower plants, as in fungi, the spores function much like seeds. Spores are most conspicuous in the non-seed-bearing plants, including liverworts, hornworts, mosses, and ferns. The origin and early diversification of land plants: a cladistic study. Spore bearing plants are those that bear spores in their life cycle. Produced by the sporophyte (i.e., spore-bearing) generation, plant spores give rise to the haploid gametophyte (i.e., gamete-bearing) generation.
The vascular plants, or tracheophytes, are plants that have specialized tissues for conducting water, minerals, and photosynthetic products through the plant. The life cycle of fern plant is completed by the alternation of two distinct generations which are as follows: a.