gametophyte

From gameto- +‎ -phyte (“plant”).

gametophyte (plural gametophytes)

1. (botany) A plant (or the haploid phase in its life cycle) which produces gametes by mitosis in order to produce a zygote.
   • 2018 May 25, Susannah Lydon, The Guardian‎:

     In liverworts like Marchantia, which lives in most soggy places worldwide, the gametophyte is the dominant phase – the thing you would think of as the plant.

• gametangium
• gamete
• gametogenesis
• gametophytic

• sporophyte