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Lichen
Lichens are symbiotic organisms made up by the association of microscopic green algae or cyanobacteria and filamentous fungi..
academickids.com/encyclopedia/index.php...
Lichen Pictures
A variety of pictures of lichens.
botany.hawaii.edu/cpsu/pictures/0.html
Lichens are symbiotic organisms made up by the association of microscopic green algae or cyanobacteria and filamentous fungi..
academickids.com/encyclopedia/index.php...
Lichen Pictures
A variety of pictures of lichens.
botany.hawaii.edu/cpsu/pictures/0.html