Identification key
Punctelia sp.
(1) Punctelia sp.
Description
Thallus
Foliose, up to 8 cm in diameter, with lobes up to 1 cm wide
Foliose, up to 8 cm in diameter, with lobes up to 1 cm wide
Color
Grey-bluish upperside, brown towards lobe margin, light brown underside
Grey-bluish upperside, brown towards lobe margin, light brown underside
Reproduction
Apothecia: not present
Soralia: frequently as whitish spot, laminal in P. subrudecta / P. borreri (2) or marginal in P. jeckeri (3)
Isidia: absence
Apothecia: not present
Soralia: frequently as whitish spot, laminal in P. subrudecta / P. borreri (2) or marginal in P. jeckeri (3)
Isidia: absence
Risk of confusion
Parmelia sulcata, distinguished by its end-cut lobes and network of pseudocyphellae
Parmelia sulcata, distinguished by its end-cut lobes and network of pseudocyphellae
Ecology
Substrate
On bark
On bark
Habitat
Wide ecological amplitude
Wide ecological amplitude
Occurrence
Common
Common
Sensitivity to air pollution
Resistant to pollution
Resistant to pollution
(2) Punctelia subrudecta
(3) Punctelia jeckerii
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