| The receptacles are reproductive branches and contain many cavities with external pores which contain antheridia and oogonia, then through meiosis, sperm and egg are produced. |
| The parent also contains antheridia which produce sperm and an oogonium which produces the egg. |
| Each antheridial chamber incorporates several antheridia, all of which are developed from one antheridial initial. |
| Other aberrant gametophyte phenotypes were observed among the group of mutants that could form antheridia. |
| 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. |
