Observation 98686: Cetraria islandica (L.) Ach.
When: 2012-06-29
No herbarium specimen

Proposed Names

76% (2)
Eye3 Eyes3
Recognized by sight: Growing near a riverbed. Tops brownish and crispy, when I pulled it up I noticed the green coloring midway down. There are little pseodocyphellae? that run down the tubes.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Pseudocyphellae best seen in third and forth photos
By: Jason Hollinger (jason)
2012-06-29 22:48:53 PDT (-0700)

It’s the white speckling all over the surface. This is ambiguous in the British Flora: ssp. islandica has distinct laminal pseudocyphellae like yours has, but is supposed to have flattened, broad branches; yours has “subtubular” narrow branches that look just like the typical ssp. crispiformis in North America. Certainly, there is no question this is C. islandica and not C. ericetorum, though (its pseudocyphellae form lines along or just back from the margins underneath the branches).

Created: 2012-06-29 19:54:50 PDT (-0700)
Last modified: 2012-06-29 22:45:42 PDT (-0700)
Viewed: 25 times, last viewed: 2016-10-24 14:55:45 PDT (-0700)
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