What are the male and female gametes in a plant called?

Fertilization.

Fertilization is the biological term that describes the uniting of the male and female gametes

In animals the gamete produced by the female is called the " egg or ovum" and that produced by the male is called sperm

The female part of the plant is called the carpel and the male part of the plant is called the stamen.

the male gemete is sperm and the female gamate is egg or Ovum