| Each antheridial chamber incorporates several antheridia, all of which are developed from one antheridial initial. |
| Cultures were moistened with tap water to prevent desiccation and, in the last stages, to help antheridial opening and movement of antherozoids. |
| The latter are much more abundant in the antheridial tufts, where they have somewhat swollen heads. |
| Studies on development of antheridia and antheridial dehiscence have been conducted by Davie and Hartman. |
| The oogonial initial penetrates the antheridial initial and rapidly expands to form the oogonium. |
