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

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Recognized by sight

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Could be P. stellaris
By: Jason Hollinger (jason)
2010-08-11 22:54:01 CDT (-0400)

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 21:36:04 CDT (-0400)
Last modified: 2011-04-28 13:13:45 CDT (-0400)
Viewed: 21 times, last viewed: 2017-08-01 15:07:15 CDT (-0400)
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