Cowpie Lichen, Crater Lichen
Diploschistes muscorum ssp. muscorum
Synonyms: Diploschistes bryophilus, Diploschistes canadensis
- 
What appears to be cowpie lichen at left on a basalt outcrop high above Rowland Lake and the Labyrinth, Columbia River Gorge..........August 29, 2013. The photo at right shows a cowpie lichen on a basalt outcrop above the Crawford Oaks trailhead, Columbia Hills State Park........January 15, 2015.
Cowpie lichen on basalt boulders along the Klickitat Trail to the north of the Yakama fisheries facility north of the Fisher Hill Bridge, Klickitat County, WA........January 10, 2023.
- 
A close-up of what appears to be cowpie lichen on an outcrop of quartzite atop Kamiak Butte, Whitman County Parks, Washington..........April 29, 2013.
Paul Slichter