Index → Petals → Phaeophyscia → P. sciastra= Physcia lithotea (Ach.) Nyl.
= Physcia sciastra (Ach.) Du Rietz
 Location: Clearwater Valley, BC, First Canyon Uplands
Date: 2011-05-05
Photo by: Curtis Björk
Notes: On cliffs of pillow basalt on south-facing slope, dry, lightly forested
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 Location: British Columbia, Atlin
Photo by: Richard Droker
Notes: on siliceous rock
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 Location: British Columbia, Atlin
Photo by: Richard Droker
Notes: on siliceous rock
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 Location: Montana, Sweet Grass Hills
Date: 2011-07-14
Photo by: Jason Hollinger
Notes: on granite outcrop
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 Location: British Columbia, Clearwater Valley
Date: 2011-07-31
Photo by: Jason Hollinger
Notes: on large basalt boulder by road in forest; damp [det. by T. Goward]
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 Location: Potlatch River Canyon, Latah County, Idaho
Date: 2011-10-08
Photo by: Curtis Björk
Notes: On river boulders at shoreline
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 Location: Northwest Territories, near MacKay Lake
Date: 2011-08-08
Photo by: Curtis Björk
Notes: On cliff in brushy tundra, moderately nitrogen-enriched by guano
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 Location: Idaho, Idaho County, Hells Canyon, Big Dry Gulch
Date: 2010-05-00
Photo by: Curtis Björk
Notes: On limestone cliff in canyon grassland
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 Location: Northwest Territories, near MacKay Lake
Date: 2011-08-00
Photo by: Curtis Björk
Notes: On siliceous cliff in brushy tundra near frequently used bird perch
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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 [Hollinger 3564a]
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 Location: British Columbia, Clearwater Valley, Dawson Falls
Date: 2012-04-03
Photo by: Curtis Björk
Notes: On river boulder at river shore
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 Location: British Columbia, Clearwater Valley, Dawson Falls
Date: 2012-04-03
Photo by: Curtis Björk
Notes: On river boulder at river shore
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 Location: British Columbia, Clearwater Valley, Dawson Falls
Date: 2012-04-03
Photo by: Curtis Björk
Notes: On river boulder at river shore
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 Location: British Columbia, Clearwater Valley, Dawson Falls
Date: 2012-04-03
Photo by: Curtis Björk
Notes: On river boulder at river shore
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