Free natural lichen photos

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Recent additions

  • tower bridge, london

    Friday, 17 June, 2011

    tower bridge

  • tower bridge, London, from embankment, UK

    Friday, 17 June, 2011

    tower bridge

  • city of London, London Bridge, UK

    Friday, 17 June, 2011

    city of London

natural lichen

Lichen a simple, slow-growing plant that typically forms a low crust or rosette, often on rocks, walls, and trees. Lichens are composite plants made up of a fungus that contains algal cells that do photosynthesis. They are classified according to the funus. Lichens take water and nutrients from the atmosphere and can be sensitive indicators of atmospheric pollution.

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  • green, yellow, lichen
  • spreading blue green blue-green lichen tree blue green blue-green lichen
  • yellow lichen
  • lichen moss tree bark
  • lichen trees
  • orange lichen on rock patches grey gray circular round