Observation 178963: Usnea trichodea Ach.

on fallen from canopy onto Rhododendron twig by road

open hardwood forest on ~south slope a few hundred feet above creek

no soredia or isidia or warts or papillae or fibrils, stems cylindrical but with bone-like cracks and regeneration beads, axis pinkish, medulla thick dense white K- C- KC- CK+y UV+ whitish

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