FRUIT
A fruit is a ripened ovary or group of ovaries containing the seeds. It may include adjacent
tissue that fuses with the ovary. Once the ovary is fertilized, the seeds develop and the ovary
enlarges forming the mature fruit.
A simple fruit forms from the ripening of the ovary of a single pistil.
Examples include peanuts, sunflower seeds, grain (corn, barley, rice),
acorns, walnuts, tomatoes, grapes, eggplants, citrus fruits, and apples.
Aggregate fruit form from flowers with several simple pistils, such as
raspberries and strawberries.
Multiple fruit forms from a cluster of several flowers. A fruit is produced
by each flower and these fruits merge into a multiple fruit. Pineapple,
mulberry, and Osage orange are examples.