the biology teacher's photostream

This plant holds on to a blade of grass with it's tendrils. Tendrils are stems specialized for...

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Uploaded on May 7, 2006

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A dandelion is a composite flower and a member of the aster family. This composite flower consists of...

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Uploaded on May 6, 2006

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Bindweed is a winding vine. On the photograph it's stem winds around a blade of grass. Using twigs...

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Uploaded on May 6, 2006

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This photograph contains fish heads on the market. At the back of the fish head the gills...

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Uploaded on Apr 14, 2006

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The veigns in this grape leaf are very clear. They are part of the transport system of a plant. There...

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Uploaded on Apr 4, 2006

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The venation pattern of this leaf is reticulate, which means the veigns form a network. The leaf...

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Uploaded on Apr 4, 2006

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This photograph is of a coltsfoot from the aster family. It has a composite flower, i.e. it appears...

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Uploaded on Apr 2, 2006

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Twig of a tree called buckeye or horse-chestnut. The latter is derived from the shape of the leaf...

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Uploaded on Apr 2, 2006

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A leaf scar consists of cork. This protects the twig from dehydration, because the cork is water and gass proof. Photo 2/3 of leaf scars.

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Uploaded on Apr 2, 2006

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Some trees drop their leaves in winter. The leaf scar is the place where the leaf stem was attached...

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Uploaded on Apr 1, 2006

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Grape hyacinths in spring

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Uploaded on Apr 1, 2006

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window frame

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Uploaded on Mar 31, 2006

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