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Blistered Rock Tripe

Umbilicaria hyperborea


The leafy brown thallus is smooth with raised black apothecia and can resemble chocolate chip cookies. The lichen is an umbilicate lichen (a lichen that is only attached to its substrate at a single point).


Spotted on exposed basalt in eastern Washington state.

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Spotted by

Washington, USA

Spotted on Jul 8, 2019
Submitted on Jul 20, 2019

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