Xanthoria calcicola Teloschistaceae
Xanthoria calcicola

Growth type foliose
Chemical results: K+ crimson

Found on calcareous, nutrient-rich substrates, concrete walls, posts and cement tiles, rare on wood and bark

Orange-yellow thallus, the centre densely isidiate. Coarse, crowded isidia are knobbly and convex, sometimes becoming flattened and lobule-like. Apothecia are usually infrequent, the discs with roughened margins.

Similar: Xanthoria parietina. Isidia absent


Xanthoria calcicola


Xanthoria calcicola


Xanthoria calcicola
Xanthoria calcicola
Studland and Wool churchyard, Dorset. July and September 2012

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