| Since the asexual gametophyte does not form antheridia or archegonia, crosses to confirm its genotype could not be performed. |
| Studies on development of antheridia and antheridial dehiscence have been conducted by Davie and Hartman. |
| Notwithstanding their general similarity, the archegonia of mosses differ externally from antheridia in having a longer neck and longer stalk. |
| Each antheridial chamber incorporates several antheridia, all of which are developed from one antheridial initial. |
| The parent also contains antheridia which produce sperm and an oogonium which produces the egg. |
| Other aberrant gametophyte phenotypes were observed among the group of mutants that could form antheridia. |
