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    • pollution lichen
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Car covered in a tangle of lichen covered branches in a 'car graveyard' Bastnas, Sweden. March
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Pål Hermansen,Pal Hermansen / Car covered in a tangle of lichen covered branches in a 'car graveyard' Bastnas, Sweden. March
Orange coloured Seashore Lichens (Xanthoria parietina) and Sea Ivory (Ramalina siliquosa) UK, August
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Adrian Davies / Orange coloured Seashore Lichens (Xanthoria parietina) and Sea Ivory (Ramalina siliquosa) UK, August
Foliose lichen (Lobaria scrobiculata) on birch bark. Sensitive to pollution. Drumnadrochit, Inverness, Scotland
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Chris Mattison / Foliose lichen (Lobaria scrobiculata) on birch bark. Sensitive to pollution. Drumnadrochit, Inverness, Scotland
Common Orange Lichen (Xanthoria parietina) growing on a road sign. This species is very resitant to air pollution.Peak District National Park, Derbshire, UK. April.
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Alex Hyde / Common Orange Lichen (Xanthoria parietina) growing on a road sign. This species is very resitant to air pollution.Peak District National Park, Derbshire, UK. April.
Lichen-covered steering wheel, in old abandoned car in 'car graveyard' Varmland, Sweden
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Pal Hermansen / Lichen-covered steering wheel, in old abandoned car in 'car graveyard' Varmland, Sweden
Abandoned cars in a 'car graveyard' with moss and lichen covered trees growing between, Bastnas, Sweden, January
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Pal Hermansen / Abandoned cars in a 'car graveyard' with moss and lichen covered trees growing between, Bastnas, Sweden, January
Lichen (Xanthoria parietina) photographed on a white background. This species is very resistant to air pollution. Peak District National Park, UK, January.
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Alex Hyde / Lichen (Xanthoria parietina) photographed on a white background. This species is very resistant to air pollution. Peak District National Park, UK, January.
Lichen (Xanthoria parietina) found growing on a twig, showing mass of apothecia (cup-shaped fruiting bodies). This species is very resistant to air pollution. Peak District National Park, UK, January.
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Alex Hyde / Lichen (Xanthoria parietina) found growing on a twig, showing mass of apothecia (cup-shaped fruiting bodies). This species is very resistant to air pollution. Peak District National Park, UK, January.
Orange coloured Seashore Lichens (Xanthoria parietina) and Sea Ivory (Ramalina siliquosa) UK, August
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Adrian Davies / Orange coloured Seashore Lichens (Xanthoria parietina) and Sea Ivory (Ramalina siliquosa) UK, August
Orange coloured Seashore Lichens (Xanthoria parietina) and Ochrolechia parella. UK, August
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Adrian Davies / Orange coloured Seashore Lichens (Xanthoria parietina) and Ochrolechia parella. UK, August
Beard Lichen (Usnea subfloridana) a good indicator of clean air, UK
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Adrian Davies / Beard Lichen (Usnea subfloridana) a good indicator of clean air, UK
Peppered moth [Biston betularia} normal grey form and dark melanistic form. Dark form is better camouflaged in areas of pollution where lichen is absent, UK
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Stephen Dalton / Peppered moth [Biston betularia} normal grey form and dark melanistic form. Dark form is better camouflaged in areas of pollution where lichen is absent, UK
Peppered moths {Biston betularia} normal white and melanistic black forms. Melanistic form is better camouflaged in areas where lichen growth is inhibited by industrial pollution
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Stephen Dalton / Peppered moths {Biston betularia} normal white and melanistic black forms. Melanistic form is better camouflaged in areas where lichen growth is inhibited by industrial pollution
Lichen {Xanthoria parietina} on flint wall, UK, a useful monitor of pollution levels.
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Adrian Davies / Lichen {Xanthoria parietina} on flint wall, UK, a useful monitor of pollution levels.
Seashore lichens Xanthoria parietina (orange) and Ochrolechia parella (grey), UK
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Adrian Davies / Seashore lichens Xanthoria parietina (orange) and Ochrolechia parella (grey), UK
Pollution lichen (Lecanora conizaeoides), a pollution indicating lichen formerly the most common lichen in industrialised areas, now declining, growing on a fence post, Derbyshire, UK. April.
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Chris Mattison / Pollution lichen (Lecanora conizaeoides), a pollution indicating lichen formerly the most common lichen in industrialised areas, now declining, growing on a fence post, Derbyshire, UK. April.