The female gametophyte is represented by the embryosac , the archegonia being absent .

雌性配子体存在于胚囊中，颈卵器缺失。

A similar section through the female plant reveals several bottle-shape archegonia , the female reproductory organs .

通过雌株末梢的纵切面所现出的几个瓶状的颈卵器，这就是雌性生殖器官。

Many forest tree species have multiple archegonia which , after fertilization produce a number of proembryos .

许多林木树种都有颈卵器，受精以后便产生许多原胚。

Ferns produce spores that germinate to form gametophytes which live independently . The gametophytes later develop antheridia and archegonia and produce new sporophytes upon fertilization .

蕨类植物通过孢子萌发形成独立生活的配子体，配子体能够形成精子器和颈卵器，进而通过受精作用形成新的孢子体。