angiodevelop213-page10 - outer portion. of pericarp fleshy,...

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Flowering Plants: Early Growth and Development - 10 Fruit Classification All fruits may be classified into three major groups on the basis of the number of ovaries and the number of flowers involved in their formation. The following outline includes most of the common types of fruits. A. Simple Fruits. Simple fruits develop from a single matured ovary in a single flower. Accessory fruits have some other flower part united with the ovary. 1. Fleshy Fruits, pericarp fleshy at maturity a. Berry, consisting of one or more carpels with one or more seeds, the ovary wall fleshy (1) Pepo (an accessory fruit), a berry with a hard rind, the receptacle partially or completely enclosing the ovary (2) Hesperidium, a specialized berry with a leathery rind and juice sacs b. Drupe, a stone fruit, derived from a single carpel and containing (usually) one seed. Exocarp a thin skin c. Pome (an accessory fruit), derived from several carpels, receptacle and
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Unformatted text preview: outer portion. of pericarp fleshy, inner portion of pericarp papery or cartilaginous, forming a core d. Hip (an accessory fruit), several separate carpels enclosed within the fleshy or semi-fleshy receptacle 2. Dry Fruits, pericarp dry at maturity a. Dehiscent fruits, those which dehisce or split open when fully mature (1) Follicle, composed of one carpel and splitting along a single suture (2) Legume, composed of a single carpel and splitting along two sutures (3) Capsule, composed of several carpels and opening at maturity in one of four ways: (a) Along the line of carpel union (septicidal dehiscence) (b) Along the middle of each carpel (loculicidal dehiscence) (c) By pores at the top of each carpel (poricidal dehiscence) (d) Along a circular, horizontal line (circumscissle dehiscence) (4) Silique, composed of two carpels which separate at maturity, leaving a persistent partition between them...
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.

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