Observation 60223: Pertusaria plittiana Erichsen
When: 2010-11-07
Herbarium specimen reported

Notes: on siliceous sandstone outcrop in shaded forest near ridge top

This is the only saxicolous, poriform Pertusaria with norstictic acid in the Ozarks, so microscopy unnecessary. The UV+ ice-blue is not mentioned, but was reliable among the several specimens I collected.

Proposed Names

87% (1)
Eye3 Eyes3
Used references: Ozark Keys, Harris & Ladd 2005.
Based on chemical features: medulla K+ yellow to bright red, C-, KC-, UV+ ice-blue

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2010-12-04 09:02:37 PST (-0800)
Last modified: 2010-12-04 09:02:40 PST (-0800)
Viewed: 10 times, last viewed: 2016-10-26 12:56:24 PDT (-0700)
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