ovule

Noun

Meaning

The rudiment of a seed. It grows from a placenta, and consists of a soft nucleus within two delicate coatings. The attached base of the ovule is the hilum, the coatings are united with the nucleus at the chalaza, and their minute orifice is the foramen.

An ovum.

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Examples

After pollination, a tube grows from the pollen through the stigma into the ovary to the ovule and two sperm are transferred from the pollen to the megagametophyte. Source: Internet

It travels near the skin of the style and curls to the bottom of the ovary, then near the receptacle, it breaks through the ovule through the micropyle (an opening in the ovule wall) and the pollen tube "bursts" into the embryo sac. Source: Internet

The seed coat forms from the two integuments or outer layers of cells of the ovule, which derive from tissue from the mother plant, the inner integument forms the tegmen and the outer forms the testa. Source: Internet

Each flower has six anthers, usually a bilobed stigma, and one ovule in each of its two sections (locules). Source: Internet

However, in botany, a fruit is the ripened ovary or carpel that contains seeds, a nut is a type of fruit and not a seed, and a seed is a ripened ovule. Source: Internet

Ovule main Plant ovules: Gymnosperm ovule on left, angiosperm ovule (inside ovary) on right After fertilization the ovules develop into the seeds. Source: Internet

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