structure and function of corolla and calyx
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The calyx (sepals) are usually five in number. They may be free polysepalous or fused gamosepalous. When the flower opens, the sepals may fall off or persist. They are usually green but in some cases they are brightly coloured(called petaloid) . The sepals protect the young flower bud and when green they also perform photosynthesis.
Corolla (petals ) - The petals are generally arranged in a single whorl but sometimes there may be a double whorl or in a spiral. They may be free polypetalous or fused gamopetalous forming a tube. The petals attract insects for pollination and also protect stamensand pistils especially when the petals form a tube.
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The calyx (sepals) are usually five in number. They may be free polysepalous or fused gamosepalous. When the flower opens, the sepals may fall off or persist. They are usually green but in some cases they are brightly coloured(called petaloid) . The sepals protect the young flower bud and when green they also perform photosynthesis.
Corolla (petals ) - The petals are generally arranged in a single whorl but sometimes there may be a double whorl or in a spiral. They may be free polypetalous or fused gamopetalous forming a tube. The petals attract insects for pollination and also protect stamensand pistils especially when the petals form a tube.
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