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show a well labelled structure of a flower |
Structure of a Flower A flower is a leafy shoot containing the sexual organs of a flowering plant. It is adapted for sexual reproduction. It is a modified terminal bud typically composed of four sets of modified leaves. Carpel: female part of the flower. Stigma: collects the pollen from the pollinating agent, insect or wind, and chemically stimulates pollen germination. Style: positions the stigma for effective pollen collection. Ovary: site of fertilization, protects the developing seeds, aids in seed dispersal. Stamen: male part of flower. Anther: pollen formation and release. Filament: positions the anther for effective pickup of pollen by the pollinating agent. Petal: Attracts insect pollinators by colour, food reward, and fragrance. Sepal: Protects the flower bud and support the petals of the open flower. The receptacle is the swollen end of the stem from which the modified leaves of the flower arise. |