Irish lichens

Lecanora hagenii

Order: Lecanorales       Family: Lecanoraceae

Species: Myriolecis hagenii (Lecanora hagenii)

Growth type crustose
Photos: On weathered estuary post. Ardsallagh, Co. Waterford, Ireland. Identified by John Douglass

Thallus usually smooth and grey, sometimes immersed. Apothecia become constricted at base, discs usually reddish-brown, +/- pruinose with thin grey margins. Often in small groups becoming angular by compression. Spores 7-14 x 4-8 Ám. Micrograph below. Chemical reactions negative

Nitrophytic, most frequent on dusty or nutrient-rich bark and wood, occasional on bricks and pavements

Similar: Lecanora dispersa is usually saxicolous

Lecanora hagenii

Lecanora hagenii

Microscope photograph
Lecanora hagenii
Lecanora hagenii. April 2012

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