Observation 130204: Pertusaria amara (Ach.) Nyl.
When: 2013-02-16
Who: zaca
No herbarium specimen

Notes: Following the “British Flora”, this must be the rock living form of Pertusaria amara, called f. pulvinata, which differs from the usual form, living in trees, by having “the upper surface warted-papillate, the apices and ridges breaking down into small, elevated, punctiform soralia, never forming discrete round soralia”.

Proposed Names

58% (1)
Eye3 Eyes3
Used references: British Flora: Smith et. al., The Lichens Of Great Britain and Ireland, The British Lichen Society, 2009.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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AGREE!
By: zaca
2013-03-14 16:55:14 PDT (-0700)

And note that we don’t have ice here to play with.

Incredible specimen!
By: Jason Hollinger (jason)
2013-03-14 16:34:35 PDT (-0700)

Created: 2013-03-14 16:29:02 PDT (-0700)
Last modified: 2013-03-14 16:29:07 PDT (-0700)
Viewed: 22 times, last viewed: 2016-10-28 14:35:23 PDT (-0700)
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