online flora
Parmelina tiliacea / P. pastillifera
(1) Parmelina tiliacea / P. pastillifera
Description
Thallus
Foliose, up to 10 cm in diameter, smooth, closely attached to substrate, with rounded lobes often divided into several lobules

Color
Grey-blue upper side, black underside
Reproduction
Apothecia: very rare, 7 mm in diameter, reddish-brown disc
Soralia: —
Isidia: numerous, black, globular or button-shaped
Risk of confusion
None
Ecology
Substrate
On bark, sometimes on rock

Habitat
Heliophilous

Occurrence
Relatively common

Sensitivity to air pollution
Resistant to pollution

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