How does the life cycle of seedless vascular plants like the fern differ forn the life cycle of a broyphyte?

I assume you mean Bryophyte, which refers to mosses. You should really do your own homework, however, the primary difference between the two lifecycles is that in bryophytes the gametophyte is the dominant generation with the sporophyte only appearing after the egg has been fertilized. The Sporophyte of most mosses appears as a stalk growing out of the gametophyte with a capsule full of spores at the top. The cap (operculum) of the capsule comes off and the spores are dispersed by wind or water and grow into a new gametophyte. In seedless vascular plants the sporphyte is the dominant generation . The sporophyte produces spores generally on the underside of the fronds. These spores are dispersed and grow into the gametophyte. The gametophyte appears as a sheet of cells attached to a substrate. After fertlization the zygote grows into a new sporophyte and the gametophyte dries out and dies.



Sporphytes are diploid. Gametophytes are haploid.



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