online flora
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
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
Upper side gray more or less dark
Reproduction
Apothecia: numerous, up to 3 mm in diameter, with gray-bluish disc usually slightly pruinose
Soralia: —
Isidia: —
Apothecia: numerous, up to 3 mm in diameter, with gray-bluish disc usually slightly pruinose
Soralia: —
Isidia: —
Risk of confusion
Anaptychia ciliaris, larger and has a fruticose thallus
Physcia adscendens/Physcia tenella, rarely show apothecia and are abundantly provided with greenish soralia
Physcia aipolia, more attached to the substrate, shows macules and lacks cilia
Anaptychia ciliaris, larger and has a fruticose thallus
Physcia adscendens/Physcia tenella, rarely show apothecia and are abundantly provided with greenish soralia
Physcia aipolia, more attached to the substrate, shows macules and lacks cilia
Ecology
Substrate
On bark or branch
On bark or branch
Habitat
On small trees and shrubs in the coastal environment
On small trees and shrubs in the coastal environment
Occurrence
Rather rare
Rather rare
Sensitivity to air pollution
Moderately sensitive to pollution
Moderately sensitive to pollution
(2)
(3)
legal notice | all rights reserved | © 2023