Pertusaria mccroryae

Species of lichen

Pertusaria mccroryae is a species of white or greenish-white crustose lichen. It is found in northwestern North America, in forests with old trees. It grows from low elevation to 1,700 m (5,600 ft) on the bark of living trees or on logs, and is named in honor of Colleen McCrory, a Canadian environmental activist. The spore size and the chemistry distinguish it from other members of the genus.

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