Irish lichens

Parmelia sulcata
Order: Lecanorales       Family: Parmeliaceae

Species: Parmelia sulcata

Growth type foliose.
Photos: On Salix and ornamental Sorbus. County Cork, SW Ireland.

Grey-blue thallus, ridged, overlapping lobes with +/- brownish tips. Network of coarse white reticulation developing greyish soredia which may spread and cover centre of thallus. Black undersurface with rhizines. Apothecia infrequent, with +/- sorediate margins.

Common throughout Ireland on trees and rocks.
Medulla and soredia: K+ orange-red, C-, P+ orange, UV-

Similar: Parmelia saxatilis is isidiate

Parmelia sulcata

Parmelia sulcata

Parmelia sulcata
Parmelia sulcata. Co.Cork. December 2008 and January 2010

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