A mature ovary, sometimes with other adherent parts, is a fruit. The ovules are structures within the ovary containing the female gametophyte with egg cell. When mature, the ovule becomes a seed. The stigma is the region of a carpel that serves as a receptive surface for pollen grains and on which they germinate to form pollen tubes. The style is a slender column of tissue that arises from the top of the ovary.
Pollen tubes grow through the style.
The origin of the stored food is provided, at least initially, by the endosperm.