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Project Noah Nature School
Placopsis gelida
This is a crustose lichen that has colonized a rock face. It has a copper-colored center. Several of the bullseye lichens were surrounded by little clumps of moss.
Found in a montane forest on the Ross Dam Trail in North Cascades National Park.
Placopsis gelida is classified as a symbiotroph because it's a fungus that grows mutualistically with an alga.
Spotted on Jun 18, 2019
Submitted on Jul 27, 2019
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