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lichen

  • Scientists haven't been able to make lichens in a lab, even when combining fungus and algae known to partner together in nature. (Andre Hubner, Wikimedia Commons)
    Meet Lichen's Secret Third Partner, Yeast
    Walker Rhea
    If I asked you what lichen was, you might say that it's a symbiotic organism that's made up of fungus joined with algae or cyanobacteria. This is what scientists would have said from 1867 up until recently.