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Project Noah Nature School
Tephromela atra
Tephromela atra is a crustose lichen that has a pale gray wrinkled thallus with black apothecia, which has white margins (1-2.5 mm dia.).
Spotted on a limb of a small deciduous tree at Big Lagoon State Park. Fairly common throughout North America and parts of Europe, growing in many different habitats and substrates such as rocks and tree bark.
Spotted on Jan 27, 2019
Submitted on Feb 4, 2019
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