Lecanora compallens Lecanoraceae
Lecanora compallens

Growth type crustose
Chemical results: Thallus K-, C-, P-, UV-
Soredia K+ yellow to yellow-brown, C-, P-, UV+/- pale orange

On exposed (western) side of trees and shrubs and on worked timber.

Thin, immersed, pale grey thallus with patches of punctiform yellow-green soredia spreading over thallus but leaving a narrow marginal zone. Apothecia and pycnidia are absent.

Similar: Pyrrhospora quernea K-, C+ orange, KC+ orange
Lecanora expallens C+ orange. L. barkmaniana K+ yellow, C-

Lecanora compallens
Lecanora compallens
On wooden post, Kimmeridge bay, Dorset. January 2013

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