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Detail of an embryo in the ovule of Petunia

Legend:

1  integument
3  micropyle
2  embryosac

English name: Petunia
Scientific name: Petunia sp.
Familia: Solanaceae
Classis: Dicotyledonas
Phylum: Angiospermae
Regnum: Plantae

The egg cell is located in the embryo sac. The pollen tube, which carries the sperm cells, reaches the embryo sac by growing through the micropyle