Collection location: Southeast Portland, Multnomah Co., Oregon, USA [Click for map]
Tiny microlichen on bark knob. Field of focus for the knob is about 1/2 inch across. Lichen is mostly gray, with irregular rounded ridges, similar to a brain. This was extremely difficult to photograph. Lens had to be nearly next to it to focus, and the slightest movement would make the lichen go out of focus. Hope I got enough detail for this to be recognized.
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