online flora
Pseudevernia furfuracea
(1) Pseudevernia furfuracea
Description
Thallus
Fruticose, up to 10 cm long, relatively wide strips (up to 5 mm wide), pendulous, with distinct colors on each side
Fruticose, up to 10 cm long, relatively wide strips (up to 5 mm wide), pendulous, with distinct colors on each side
Color
Upper side grayish, underside black
Upper side grayish, underside black
Reproduction
Apothecia: very rarely present, concave, dark brown disc
Soralia: —
Isidia: generally abundant on the upper side, gray, cylindrical (4)
Apothecia: very rarely present, concave, dark brown disc
Soralia: —
Isidia: generally abundant on the upper side, gray, cylindrical (4)
Risk of confusion
Evernia prunastri has a whitish underside and soralia
Ramalina farinacea has soralia and is the same color on both sides (green)
Evernia prunastri has a whitish underside and soralia
Ramalina farinacea has soralia and is the same color on both sides (green)
Ecology
Substrate
On bark, rarely on calcareous rock
On bark, rarely on calcareous rock
Habitat
Rather acidophilic, heliophilic
Rather acidophilic, heliophilic
Occurrence
Common
Common
Sensitivity to air pollution
Particularly sensitive to nitrogen pollution
Particularly sensitive to nitrogen pollution
(2)
(3)
(4) Isidia
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