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The megagametophyte within the ovule of a flowering plant.

胚囊 Embryo sac 有花植物内的雌配体。

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Ovary ovoid, usually 4-locular, with amphitropous ovules.

卵球形,通常4室,有曲生

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The ovary was trilocular with axile placentation and the ovule was anatropous, biteguminous and crassinucellate.

3室,中轴胎座。倒生,双型。

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Ovary inferior, 1-8-loculed, with 1 pendulous, apotropous ovule per locule.

位,1-8室,每室有1颗倒生的

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Simple ovary, the placentation is brink.The ovules are campylotropous.The ovule is bitegmic and crassinucellate.The megaspore archesporium is initiated from sub-epidermis of nucellus.

摘要矮沙冬青皮1室,边缘胎座,弯生具双

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Stigma subsessile, penicillate-capitate. ovule orthotropous.

直生的。

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The larger embellum could be used as a secondary screening indicator for identifying aposporous embryo sac in Apluda mutica.

存在发达的附器是水蔗草无孢生殖胚囊的特点之一.

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The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.

皮和能产生孢的维管植物(羊齿类)还有具的裸植物的大孢叶是同源的。

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An ovule which is curved so that the micropyle is positioned near the funiculus and the chalaza.

弯生 Campylotropous ovule 孔邻近柄和合点的弯曲的

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6 Minute English 英语

Only after pollination can the next process occur – fertilisation - when the pollen carried from another plant fertilises a female ovule to make new seeds.

只有在授粉之后,下一个过程才会发生——受——一株植物上带过来的花粉使一个雌性胚珠而产生新的种子。

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中高级英语短文

In the latest study, the team used micro-CT technology to scan the fossil and found that the interior contained inverted ovules, which is a key feature for determining angiosperms.

在最新的究中,该团队使用微型 CT 技术扫描化石,发现内部包含倒置的胚珠,这是确定被子植物的关键特征。

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6 Minute English 英语

Only after pollination can the next process occur-fertilisation-when the pollen carried from another plant fertilises a female ovule to make new seeds.

只有经过了授粉,下一个程序受——被带到一个植物上的花粉在磁性胚珠上授来结成新种子——才会发生。

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物种起源

In certain whole groups of plants the ovules stand erect, and in others they are suspended; and within the same ovarium of some few plants, one ovule holds the former and a second ovule the latter position.

在某些整群植物中, 胚珠直立,而在一些植物群中, 胚珠则悬空;在少数植物的同一个子房内, 一个胚珠占据前者的位置, 第二个胚珠占据后者的位置。

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物种起源

If so, the position of the ovules, even when one is erect and the other suspended within the same ovarium, would follow the selection of any slight deviations in position which favoured their fertilisation, and the production of seed.

如果是这样, 胚珠的位置, 即使一个直立而一个悬置在同一个子房内,也将遵循有利于它们受和种子生产的任何轻微位置偏差的选择。

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