31-32 Flowers and Fruit II - 2007 Angiosperms Outcrossing...

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Lecture 31, 32 - 2007 Angiosperms Outcrossing mechanisms Flower arrangements - inflorescences Evolution of flowers Pollination syndromes Fruit Fruit Structure Fruit Classification Fleshy pericarp Dry pericarp
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Lecture 31 - 2007 Flowers likely co-evolved with their pollinators Flowers that provided rewards were more effectively pollinated Plants with such flowers had a selective advantage –Special sources of food –Extra pollen, nectaries –Closed carpels to prevent feeding on ovules –Bisexuality to increase cross pollination
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Lecture 31 - 2007 • Pollinator types - specialist vs. generalist • Tradeoffs • Bee • Carrion Flies • Beetle • Moth and Butterfly • Bird • Bats • Wind
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Lobelia
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Magnolia
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Stapelia (Carrion Flower)
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Phlox
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Foxglove
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Ladyslipper Orchid
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Orchid: Ophrys apifera
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Columbine
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