| In apomictic plants, embryos develop parthenogenetically from unreduced somatic or gametophytic cells. |
| In both species there are several layers of cells with labyrinthine walls on both the sporophytic and gametophytic side of the placenta. |
| In both species the gametophytic cells of the placenta generally have less prominent wall labyrinths than sporophytic cells. |
| Self-incompatibility mechanisms have traditionally been found to operate in styles with either a sporophytic or gametophytic incompatibility system. |
| If sporophytic mycelium is present when an aecium starts, the sporophytic and gametophytic components are intimately mixed in the aecium from its very inception. |
| The pollen grain is the male gametophytic phase of flowering plants. |
