GEMET Thesaurus

lichen

Scope note
Composite organisms formed by the symbiosis between species of fungi and an algae. They are either crusty patches or bushy growths on tree trunks, stone walls, roofs or garden paths. Because they have no actual roots they get their sustenance from the atmosphere and rainwater. Lichens play an important role in the detection and monitoring of pollution, especially sulphur dioxide, as they are highly sensitive to pollution and different species disappear if pollution reaches specific levels.

lichen

Broader Terms

Date of creation
14-Apr-2011
Accepted term
14-Apr-2011
Descendant terms
0
More specific terms
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Alternative terms
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Related terms
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Notas
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