Observation 165856: Pertusaria
When: 2014-05-24
No herbarium specimen

Notes: Lichen is crustose on Oregon White oak (Quercus garryana), with small raised bumps on surface. Not really pustules, but something similar. Help appreciated!

Images

422281
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422283
Patch on left has been scraped by fingernail, exposing dark brown underneath.

Proposed Names

18% (2)
Eye3
Used references: Brodo, Lichens of North America
61% (2)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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By: Daniel B. Wheeler (Tuberale)
2014-05-27 13:33:54 CDT (-0400)

I understand the wisdom of your comments, Jason. I, too, am recognizing the importance of voucher collections with obs., and chemical testing.

These “sorediate” Pertusaria require chemistry
By: Jason Hollinger (jason)
2014-05-27 13:21:34 CDT (-0400)

At least they do out east. Maybe the only option in your area is P. amara, I don’t remember. It seems unlikely, though, considering just how many there are elsewhere in the continent!

Created: 2014-05-25 01:43:13 CDT (-0400)
Last modified: 2014-05-27 13:32:30 CDT (-0400)
Viewed: 23 times, last viewed: 2016-10-21 22:54:33 CDT (-0400)
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