Thallus
Fruticose, up to 10 cm long, divided into numerous narrow strips (up to 3 mm wide), smooth surface
Color
Grey-green to yellowish-green, same color on both sides
Reproduction
Apothecia: very rare, lateral with a whitish disc
Soralia: numerous, marginal, elliptical in shape and mealy in appearance (2)
Isidia: —
Substrate
On bark, rarely on rock
Habitat
Rather heliophilous, wide ecological amplitude
Sensitivity to air pollution
Moderately sensitive to pollution