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About
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Physcia halei
Physcia millegrana
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P. magnussonii
Physcia magnussonii
Frey
Location: Washington, channeled scablands
Date: 2013-04-19
Photo by:
Jason Hollinger
Notes: on basalt [ver. by T. Goward; Hollinger 5035]
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Physcia halei
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P. magnussonii
