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Also known as Pore lichen. Pertusaria multipunctoides is a crustose lichen with a thin yellowish green thallus and distinctive white warts.
Spotted on bark of a large alder tree. I usually find this lichen near large bodies of water - in this case it was found next to Lake Crescent.
Lat: 48.08, Long: -123.75
Spotted on Dec 25, 2018
Submitted on Jan 5, 2019