Observation 118123: Pertusaria plittiana Erichsen
When: 2012-11-27
No herbarium specimen

Notes: On sandstone.

Proposed Names

17% (2)
Recognized by sight
28% (1)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Looks like Pertusaria
By: Jason Hollinger (jason)
2012-11-27 15:23:23 CST (-0600)

Growing on rock narrows down options dramatically. P. plittiana is only one regularly on rock reported from Ozarks region. Others occasionally are found on rock, though.

P. plittiana is C- and K+ yellow turning bright red (norstictic acid)
P. velata is more verrucose, paler, and K- and C+ red, more common on bark
others?

Created: 2012-11-27 14:01:20 CST (-0600)
Last modified: 2012-12-10 10:51:24 CST (-0600)
Viewed: 33 times, last viewed: 2016-10-20 17:14:52 CDT (-0500)
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