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Usnee sp. (Old Man’s Beard)

Usnée sp.

Usnea

  • Description Description Icon
    This lichen is an association between a fungus and an alga.
  • Habitat Habitat Icon
  • Interesting Fact Interesting Fact Icon
    Very sensitive to air pollution, it is as a good bioindicator because it tends to only grow where the air is clean. Contain usnic acid. Warblers often use this lichen to make their nest.

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