ICTeachers Photo Library
Science Topics: Flowers, Fruit and Seeds
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bluebells.jpg bluebellfruit.jpg broccoli.jpg crocus_stigma.jpg clematis_flr.jpg
Bluebells flowers have 6 petals fused into a tube. Insects must crawl right in to get at the nectar. Notice the strap shaped leaves. After the flowers have finished the seeds form inside these fruits. Each fruit has three compartments. A head of purple sprouting broccoli. Like a cauliflower head the broccoli is a bunch of flower buds. A crocus flower, clearly showing the stamens and stigma. You can also clearly see pollen grains both on the stamens and some brushed onto the petals. Clematis flowers have four petals but many stamens and stigmas. This photo clearly shows the arrangement of parts.
Mike Freedman Mike Freedman Mike Freedman Mike Freedman Mike Freedman
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columbine1.jpg columbinenectaries.jpg cocksfoot.jpg dandelionclock.jpg
Columbine is also known as Aquilegia. Its petals have long, horn shaped nectaries. Bees and other insects crawl right inside and cannot avoid rubbing against the stamens and styles as they do so. Cocksfoot grass. Grasses are wind-pollinated so their flowers are not adapted to attract insects. 2 views of dandelion clocks. Each "fairy" is a fruit which is perfectly adapted for dispersal by the wind.
Mike Freedman Mike Freedman Mike Freedman
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Hollyhock. This large flower grows on a tall spike which can be well over 2 metres tall. Bumble bees love them. There is a photo of a bumble bee feeding on a hollyhock flower on our animals page. Here, a couple of hollyhock flowers just beginning to open. Notice how the petals are curled. Nigella, or Love-in-a-mist grows abundantly in gardens. In this photo you can clearly see the stamens and long, curly styles. Nigella seeds can, apparently, be used in cookery and rabbits love the taste of the leaves. Later in the year Nigella flowers give way to these large inflated seed heads, containing large numbers of tiny black seeds. When the heads dry the seeds are shaken out of little opening near the top (see second photo) when the wind blows or the stalks are knocked by passing animals.
Mike Freedman
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This page was last updated on 26 October 2007