online flora
Candelaria concolor
(1) Candelaria concolor
Description
Thallus
Foliose, small tufted mats of 1–3 cm in diameter or more, which may form large colonies by association, formed of very jagged lobules like a lace look

Color
Upper side yellow (in the sun) to greenish (in the shade), underside whitish (difficult to observe)
Reproduction
Apothecia: frequent, orange disc
Soralia: —
Isidia: —
Risk of confusion
Candelariella sp., with a crustose thallus
Ecology
Substrate
On bark

Habitat
Heliophilous and nitrophilous

Occurrence
Common

Sensitivity to air pollution
Resistant to pollution

(2)
(3) Apothécia