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Botany · Ch 4 — Reproductive Morphology

Fruits

4.7

Fruits

A fruit, in strict botanical terms, is a fertilised and ripened ovary; in everyday language people often instead describe as a fruit any sweet, juicy, fleshy, coloured or aromatic seed-enclosing product of the whole gynoecium and any associated floral part, but botanically the definition is tighter. Fruits are the end product of pollination and fertilisation and usually contain seeds inside. The branch of horticulture devoted to the study and cultivation of fruits is called pomology. Botanically, fruits fall into three broad categories depending on how they form: a true fruit develops from the ovary alone, with no other (non-carpellary) floral part contributing; a false fruit develops from the ovary together with other non-carpellary floral parts, such as the thalamus in apple, the perianth in jackfruit, or the involucre …

Figure 4.39Classification of fruits based on formation

What this figure shows. A three-panel classification chart under the heading 'Fruits': True fruit - labelled 'Ovary develops into fruit without any non-carpellary part', with tomato and mango as examples. False fruit - labelled 'In addition to the ovary the non-carpellary (floral) parts like thalamus (apple), perianth (jackfruit) and involucre and perianth (English walnut) develop into fruit', with apple, jackfruit and English walnut illustrated. Parthenocarpic fruit - labelled 'Development of fruits without fertilization; they are se …