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Images of British Lichens



Caloplaca cerinella (Nyl.) Flagey


Thallus thin, pale grey; apothecia crowded, small, about 0.3mm diameter, with orange-yellow discs and paler yellow to orange-yellow margins, asci with more than 8 and typically 12-16 ascospores (uniformly 8-spored in the closely similar but rarer C. cerinelloides). Widespread but local or under-recorded, a minute species on nutrient-rich twigs.

Refs: Smith et al. (2009), 257; Purvis et al. (1992), 148; Dobson (2005), 97 (photo); Dobson (2011), 106 (photo); Wirth (1995), 1: 212; Frahm et al. (2010), 64 (photo); Lichen Atlas of the British Isles 6: 242 (2001).

 
Caloplaca cerinella
On Ash (Fraxinus excelsior), Kindrogan, Perthshire, March 2008
 
Caloplaca cerinella
Caloplaca cerinella, asci
Caloplaca cerinella, photobiont
On Ash (Fraxinus excelsior), Gifford, East Lothian, April 2008: apothecia; asci & ascospores; trebouxioid photobiont


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Uploaded October 2008, last modified December 2012