Under the microscope, the gametophyte showed distinct antheridia and archegonia developing on its surface.

In mosses, gametophytes are the dominant, photosynthetic generation that produces gametes.

In many bryophytes, sexual structures develop gametophytically, meaning the haploid gametophyte produces the gametes.

The gametophytic generation relies on mitosis to produce gametes in many non-flowering plants.