Imshaug's Tube Lichen, Forked Tube Lichen
Hypogymnia imshaugii
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What might be Imshaug's tube lichen as seen on a coniferous branch along the Willard Springs Trail at Conboy Lake National Wildlife Refuge..........November 10, 2013.
- 
What might be Imshaug's tube lichen as seen on a coniferous branch along the Willard Springs Trail at Conboy Lake National Wildlife Refuge..........November 10, 2013.
Paul Slichter