Identification key
Evernia prunastri
(1) Evernia prunastri
Description
Thallus
Fruticose, up to 10 cm long, relatively wide strips (up to 5 mm wide), pendulous, with distinct colors on each side

Color
Upper side greenish, underside whitish

Reproduction
Apothecia: very rarely present, concave, brownish disc
Soralia: sometimes present on the upper side and/or on the strip edges
Isidia: absence

Risk of confusion
Pseudevernia furfuracea, with a blackish underside and isidia
Ramalina farinacea, with soralia only on the strip edges and is the same color on both sides (green)

Ecology
Substrate
On bark

Habitat
Rather heliophilous, wide ecological amplitude

Occurrence
Common

Sensitivity to air pollution
Moderately sensitive to pollution

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