Index → Petals → Phaeophyscia → P. orbicularis= Physcia orbicularis (Necker) Poetsch
= Physcia virella (Ach.) Flagey
 Location: British Columbia, Rocky Mountains, Bullmoose Mountain, near Tumbler Ridge
Date: 2014-06-07
Photo by: Curtis Björk
Notes: Sandstone cliff, alpine
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 Location: British Columbia, Vancouver Island, Albert Head
Date: 2013-10-09
Photo by: Curtis Björk
Notes: On concrete mooring block at marine shore
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 Location: Canada, Ontario, University of Guelph, Arboretum
Date: 2010
Photo by: Troy McMullin
Notes: mature exposed deciduous tree in a field; on Acer sp.; lower surface and rhizines black [McMullin 9300]
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 Location: Montana, Bears Paw Mountains
Date: 2011-07-13
Photo by: Jason Hollinger
Notes: on Populus tremuloides trunk on low bluff; unusually fertile specimen [Hollinger 3694]
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 Location: Nunavut, Continental Central Canadian Arctic, near Hackett River
Date: 2012-07-03
Photo by: Curtis Björk
Notes: On sandstone slab in rocky tundra
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 Location: Nunavut, Continental Central Canadian Arctic, near Hackett River
Date: 2012-07-03
Photo by: Curtis Björk
Notes: On sandstone slab in rocky tundra
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 Location: Northwest Territories, near MacKay Lake
Date: 2011-08-07
Photo by: Curtis Björk
Notes: On cliff in brushy tundra, moderately nitrogen-enriched by guano
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 Location: Vavenby, BC
Date: 2011-05-04
Photo by: Curtis Björk
Notes: Limestone cliff in dry forest
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 Location: South Dakota, Black Hills
Date: 2011-07-09
Photo by: Jason Hollinger
Notes: on limestone cliff; damp [Hollinger 3564b]
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 Location: Canada, Ontario, University of Guelph, Arboretum
Date: 2012
Photo by: Troy McMullin
Notes: on partially shaded wooden bench [McMullin 9317]
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 Location: British Columbia, Clearwater Valley, Dawson Falls
Date: 2012-04-06
Photo by: Curtis Björk
Notes: On riverside boulder in waterfall sprayzone
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 Location: Canada, Ontario, Sandbanks Provincial Park
Date: 2012
Photo by: Troy McMullin
Notes: on exposed cement [McMullin 9181]
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 Location: California, San Gabriel Mountains
Date: 2010-07-06
Photo by: Jason Hollinger
Notes: on Quercus; well-formed soralia [Hollinger 1160]
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