Fruit anatomy Fruit anatomy Fruit anatomy is the plant anatomy of the internal structure of fruit. Fruits are the mature ovary or ovaries of one or more flowers. In fleshy fruits, the outer layer (which is often edible) is the "pericarp", which is the tissue that develops from the ovary wall of the flower and surrounds the seeds. But in some seemingly pericarp fruits, the edible portion is not derived from the ovary. For example, in the fruit of the ackee tree the edible portion is an aril, and in the pineapple several tissues from the flower and stem are involved. The
Fruit preserves of foods. This includes jelly with toast, or a peanut butter and jelly sandwich. Marmalade is a fruit preserve made from the juice and peel of citrus fruits boiled with sugar and water. It can be produced from lemons, limes, grapefruits, mandarins, sweet oranges, bergamots and other citrus fruits, or any combination thereof. Marmalade is generally distinguished from jam by its fruit peel. The benchmark citrus fruit for marmalade production in Britain is the Spanish Seville orange, "Citrus aurantium" var. "aurantium", prized for its high pectin content, which gives a good set. The peel has a distinctive bitter taste which