Observation 21639: Caloplaca citrina (Hoffm.) Th. Fr.

When: 2009-05-28

Collection location: Vavenby Limestone South, British Columbia, Canada [Click for map]

Who: Jason Hollinger (jason)

Specimen available

Found this growing in sheltered spots on limestone cliff. Very pale yellow color suggested Chrysothrix but K+r reaction immediately confirms Caloplaca. There are several species in the C. citrina complex, and they have not been studied in this area.



Proposed Names

58% (1)
Eye3 Eyes3
Used references: Lichen Flora of the Greater Sonoran Region — only treatment I have of saxicolous crusts in western North America…
Based on chemical features: K+r soredia

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2009-06-03 22:57:48 AST (-0400)
Last modified: 2009-06-03 22:57:48 AST (-0400)
Viewed: 43 times, last viewed: 2018-06-14 11:57:49 AST (-0400)
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