Identification key
Physcia leptalea
(1) Physcia leptalea
Description
Thallus
Foliose, up to 4 cm, dotted with white macules clearly visible with a magnifying glass, long and narrow lobes (1 to 2 mm wide), not ascending extremities, margins provided with long concolorous cilia

Color
Upper side gray more or less dark
Reproduction
Apothecia: numerous, up to 3 mm in diameter, with gray-bluish disc usually slightly pruinose
Soralia: absence
Isidia: absence
Risk of confusion
Anaptychia ciliaris, larger and has a fruticose thallus
Physcia adscendens/P. tenella, rarely show apothecia and are abundantly provided with greenish soralia
Physcia aipolia/P. stellaris, more attached to the substrate, shows macules and lacks cilia

Ecology
Substrate
On bark or branch

Habitat
On small trees and shrubs in the coastal environment

Occurrence
Rather rare

Sensitivity to air pollution
Moderately sensitive to pollution

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