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

Notes: On sandstone.

Proposed Names

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

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Looks like Pertusaria
By: Jason Hollinger (jason)
2012-11-27 21:23:23 GMT (+0000)

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

Created: 2012-11-27 20:01:20 GMT (+0000)
Last modified: 2012-12-10 16:51:24 GMT (+0000)
Viewed: 35 times, last viewed: 2017-06-14 17:27:27 BST (+0100)
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