Collection location: Oregon City, Clackamas Co., Oregon, USA [Click for map]
Found blown-off a tree at the Willamette Falls wayside, northbound I-205, Oregon City, Clackamas County, Oregon.
Thallus is thick and rubbery with white edges and white raised ridges, some red-tinted near the tips of lobes, underside dark brown to nearly black.
[admin – Sat Aug 14 02:04:13 +0000 2010]: Changed location name from ‘Oregon City, Clackamas County, Oregon’ to ‘Oregon City, Oregon, USA’
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