Altitudinal distribution: submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a species which is morphologically similar to L. jackii, with a bluish white to bluish grey thallus containing atranorin, roccellic and toensbergianic acids as major substances, with thalline granules of medium size, based on a type from Scotland; on the not too acidic bark of deciduous trees, rarely also on other substrates (wood, basic siliceous rock) in moist forests and woodlands; more common in Western Europe, especially in oak forests, with a few records from the Eastern Alps (Austria).
