Lichens are a great example of mutualism. This is a form of symbiosis where two organisms have a close relationship and both of them benefit.

Lichens consist of a fungus and alga cells. The fungus is the container. It protects the lichen from tough environmental conditions. The algae contains chlorophyll. It is able to carry out photosynthesis and supply itself and the fungus with nutrients.

As you explore the web pages below you will learn about the three types of lichens: crustose, fruticose, and foliose.

Links

The Fungus Kingdom: Lichens Let this be your starting place for simple information about lichens. Very colorful clear photographs.

Lichens and Animals Shows how lichens are important producers in food chains.

The Microbial World Lichens Very scientific information about lichens. Great color photographs. Not a place to start, but visit this to learn a lot more.

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Last modified: 01/09/09