Male gametophyte with least number of cells is present in

Gametophyte in Funaria and Pteris is monoecious and therefore, terms like male and female gametophytes cannot be used for them. In these plants, both archaegonia and antheridia are borne on the same gametophyte.

Lilium and Pinus are heterosporous. Male and female gametophytes are different in these plants. Here, pollen grain represents the male gametophyte. In Lilium, male gametophyte (pollen grain) is 3-celled. In Pinus, male gametophyte is 4- celled.