Gametophyte

The plant life-cycle generation that produces gametes. In an angiosperm, male gametophytes are pollen grains and the female gametophyte is the embryo sac.

A name commonly used for a fern gametophyte. A small photosynthetic free-living body is a useful example, but not a description of every fern gametophyte.

An egg-bearing reproductive structure in relevant land-plant lineages. The young sporophyte can be retained on the maternal gametophyte after fertilization.

A male gamete-producing structure in relevant plant lineages. In bryophytes and many ferns, it produces motile sperm whose movement to an egg requires a suitable water connection.