| The pollen grain is the male gametophytic phase of flowering plants. |
| The haploid tetraspores erminate and give rise to haploid gametophytic plants. |
| Other notable cytological features are highly pleomorphic plastids and mitochondrial aggregates in the gametophytic placental cells. |
| Self-incompatibility mechanisms have traditionally been found to operate in styles with either a sporophytic or gametophytic incompatibility system. |
| Following germination, sporophytic embryo tissue was separated from surrounding female gametophytic tissue. |
| Bryophytes are characterized by their dominant gametophytic plant body and their sporophytes epiphytic to gametophytes. |
