Collection location: Southeast Portland, Multnomah Co., Oregon, USA [Click for map]
Photo an extreme close-up of a section of bark about 1/2 inch wide. Lichen I was attempting to photograph is in the mid- to upper-left of the photo, pine-green coloration, with white edges. The underside (see approximate center) has odd whitish to grayish growth reminiscent of barnacles on a whale skin.
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