II. The Aggregate Fruits (page 5)

Aggregate Fruit Examples
 An aggregate fruit results from the joining together of several ovaries of the same flower. This process starts with a flower that contains several carpels with an equal number of ovaries. Each ovary contains a single ovule that develops into a seed following fertilization. As the ovaries develop and increase in size they become attached together. Aggregate fruits are also either true, without accessory parts, or accessory, with additional floral parts. The raspberry is an aggregate of true fruits. Each fruit in the aggregate is a drupe containing a stony pit. The strawberry is an accessory aggregate fruit. The many ovaries of the strawberry flower develop into achenes which become embedded on the surface of the enlarged flower receptacle.

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