antheridial initial

例句：

1. 1. The antheridia are the female reproductive organs of the flower.
   雄蕊是花的雌性生殖器官。
2. 2. Antheridia are also known as pollen sacs.
   雄蕊也被称为花粉囊。
3. 3. The antheridia are responsible for producing pollen.
   雄蕊负责产生花粉。