Lecanoraceae Glaucomaria carpinea (Lecanora carpinea) Chemical results: Thallus K+ yellow, C-, P+/- pale yellow, UV- Discs C+ yellow or orange, UV+ pale orange. Local on smooth-barked deciduous trees, usually on twigs, branches and young trunks. A thin white or pale grey thallus with a white prothallus. Apothecia with pale reddish-brown or cream coloured discs covered by a thick white pruina. Epithecium pale yellow-brown, granular. Microscope photographs below. Similar: Lecanora albella. Apothecial discs C- Lecanora confusa. Thallus K-, C+ orange

Microscope photographs



Glaucomaria carpinea (Lecanora carpinea)
Parkstone, Studland Heath and Broadstone, Dorset. January 2013, June 2015, November 2023, April 2025