Caloplaca cerina Teloschistaceae
Caloplaca cerina

Growth type crustose
Chemical results: Apothecia K+ red-purple

Twigs and bark of basic-barked shrubs and trees; Elder, Ash, Sycamore. Occasional on wood with high PH value.

Whitish or grey thallus with large (to 2mm) apothecia, discs orange-yellow with thick, +/- crenulate margins. Asci 8-spored, the spores polarilocular, 12-15 x 8-10 Ám, septum 5-8 Ám wide 1/3 - 1/2 length of spore.

Similar: Caloplaca cerinella has smaller apothecia, asci 12-16 spored


Caloplaca cerina


Caloplaca cerina
Caloplaca cerina
Filcombe Farm, Dorset. November 2013

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