Observation 53847: Caloplaca cerina (Hedwig) Th. Fr.

When: 2010-08-25

Collection location: Jamor, Oeiras, Portugal [Click for map]

Who: zaca

No specimen available

I’m not used to seeing species of Caloplaca in trees, so initially I thought it was some kind of Lecanora. The chemical tests performed in situ revealed that it had not only was the color of a Caloplaca but also the acids. From here the identification was easy, because there is just another similar species in U.S., C. pinicola, but with a thallus verrucose. The place where it was observed was well supplied of specimens, and this is apparently a local phenomenon, because outside of this habitat, which is a mixed area with pines, oaks and cork trees, only saw one again.


Apothecial section, mounted in water with a drop of K
Detail of the exciple
2nd specimen
3rd specimen

Proposed Names

58% (1)
Eye3 Eyes3
Used references: Consortium NALH
Based on microscopic features: See attached photos
Based on chemical features: See attached photos

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2010-09-27 18:03:47 CDT (-0400)
Last modified: 2010-09-27 18:10:32 CDT (-0400)
Viewed: 29 times, last viewed: 2017-06-08 01:41:29 CDT (-0400)
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