| 1. | The archegonium is generally reduced in nature . 藏卵器在性质上一般是简退的。 |
| 2. | Early archegonial development is already evident two weeks after pollination . 颈卵器的早期发育在授粉后两周内就业已明显。 |
| 3. | 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。 |
| 4. | 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。 |
| 5. | For example , the archegonium ( female organ ) of the moss funaria secretes sucrose 例如藓类颈卵器(雌性器官)分泌蔗糖。 |
| 6. | 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。 |
| 7. | Venter the swollen base of an archegonium that contains the egg cell ( oosphere ) 颈卵器)腹部:颈卵器内含有卵细胞(卵球)而向外膨大的基部。 |
| 8. | Most gymnosperms retain archegonia except for the most advanced genera gnetum and welwitschia 除了买麻藤属和百岁兰属以外大多数裸子植物还保留有颈卵器。 |
| 9. | Enclosure of the nucellus by the integuments is incomplete , the embryo sac or , in gymnosperms , to the archegonium 珠被并不是将珠心完全封闭,而是留有珠孔以便受精时花粉管进入胚囊,或裸子植物的藏卵器。 |
| 10. | It is a multicultural flask - shaped structure made up of a narrow neck and a swollen base ( venter ) that contains the female gamete 颈卵器状似长颈烧瓶,由一条细长的颈部和膨大的腹部(内含雌性配子)组成。 |