| Numerous antherozoids are produced in the antheridia and they swim through the covering film of water to reach the archegonia, each of which contains a single egg cell. |
| The parent also contains antheridia which produce sperm and an oogonium which produces the egg. |
| Since the asexual gametophyte does not form antheridia or archegonia, crosses to confirm its genotype could not be performed. |
| Meiosis occurs just before mating in well-differentiated oogonia and antheridia. |
| Studies on development of antheridia and antheridial dehiscence have been conducted by Davie and Hartman. |
| On their release from the antheridia, the antherozoids must then swim through surface water to fertilize neighbouring egg cells. |
