Observation 50173: Lichen P. Micheli
When: 2010-08-11
Herbarium specimen reported

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Could be P. stellaris
By: Jason Hollinger (jason)
2010-08-11 19:54:01 PDT (-0700)

based on apparent lack of mottling of the surface, but I’ve been fooled before. Only way to be sure is to do the KOH test on the white interior. If K+ yellow then it is P. aipolia (very common); K- then it is P. stellaris (less common).

[edit: Hold on a minute, this could well be Phaeophyscia, too: Phaeophyscia surface is K-, Physcia surface is K+ yellow]

Created: 2010-08-11 18:36:04 PDT (-0700)
Last modified: 2011-04-28 10:13:45 PDT (-0700)
Viewed: 20 times, last viewed: 2016-03-24 03:46:51 PDT (-0700)
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