Identification key
Ramalina fraxinea
(1) Ramalina fraxinea
Description
Thallus
Fruticose, usually large (up to 30 cm), strappy (up to 3 cm)

Color
Grey-green to dark brown (particularly in sunny sites)
Reproduction
Apothecia: frequent, with a concave disc of the same color as the thallus, located on the edges of the strips
Soralia: absence
Isidia: absence
Risk of confusion
Ramalina fastigiata is usually smaller and distinguished by its terminal apothecia
Ecology
Substrate
On bark

Habitat
Heliophilous, found in well-ventilated sites

Occurrence
Rare

Sensitivity to air pollution
Very sensitive to acid pollution and eutrophication

(2)