Irish lichens

Platismatia glauca
Order: Lecanorales       Family: Parmeliaceae

Species: Platismatia glauca

Growth type foliose.
Photos: Gougane Barra, Co.Cork and Killarney, Co.Kerry, Ireland

Bluish-grey to greenish-brown thallus, +/- erect, tufted lobes with crisped, incised margins. Lobe margins often isidiate or sorediate. Rhizines usually absent. Apothecia rare, discs red-brown.
Upper cortex: K+ yellow, UV-

Occurs on acid-barked trees, often on horizontal branches, also on upland rocks. Most frequent in N Ireland.

Similar: Cetrelia olivetorum has punctiform pseudocyphallae on upper surface

Platismatia glauca

Platismatia glauca

Platismatia glauca
Platismatia glauca. October 2009 and November 2010

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