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Published bySamuel Manning Modified over 9 years ago
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FRUITS Fruits can be divided into three categories: 1. Simple fruit
- a fruit formed from a single ovary of a single flower (monocarpous or syncarpous ovary) 2. Aggregate fruit - a fruit formed from several ovaries of a single flower (apocarpous) e.g. Anona 3. Multiple fruit - a fruit formed from the ovaries of flowers borne in a compact inflorescence. The fruits unite at maturity e.g. jackfruit, pineapple
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Simple fruits Dry indehiscent fruits Dry dehiscent fruits
Succulent/Fleshy fruits A fruit : - pericarp + the seed (inside) - is a ripened ovary/ovaries generally containing one to many seeds inside Pericarp : exocarp/epicarp + mesocarp + endocarp ** Following pollination and fertilization in a flower, the ovule develops into a seed while the ovary wall forms the fruit pericarp
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1. Simple Fruits A. Dry indehiscent fruits Cypsela Samara Achene Nut
pericarp seed Nut Achene Cypsela Samara A. Dry indehiscent fruits
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coleoptile plumule coleorrhiza radicle endosperm Caryopsis
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Schizocarp
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Loment/Lomentum B. Dry dehiscent fruits Follicle Siliqua Legume/Pod
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(i) Capsule (Septicidal) (ii) Capsule (Loculicidal)
(iv-a) Capsule (Circumscissle) (iii) Capsule (Poricidal) (iv-b) Capsule (Operculate) (Pyxis) (Poricidal)
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Rubber – Capsule septicidal
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Durian – Capsule loculicidal
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C. Succulent/Fleshy fruits
epicarp mesocarp endocarp Berry Drupe C. Succulent/Fleshy fruits
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Pome Hesperidium Pepo endocarp epicarp outer limit of carpel mesocarp
remains of stamen, style and calyx Pome Hesperidium Pepo seed tough (originated from the receptacle)
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2. Aggregate Fruit Strawberry calyx pedicel pits/seeds
fleshy receptacle Strawberry (achene)
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pedicel fruitlet seed Anona
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3. Multiple Fruits Pineapple (sorosis) remains of a flower bract
fruit axis remains of a flower Pineapple (sorosis) peduncle
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thickened stigma remains
true fruit pericarp seed perianth thickened stigma remains fruit axis thickened stigma remains Jackfruit
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