Observation 61649: Pertusaria
When: 2010-12-31
No herbarium specimen

Notes: Growing on a young Bay tree (Umbellularia)

Proposed Names

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Recognized by sight
84% (1)
Recognized by sight

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Eye3 = Observer’s choice
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By: Jason Hollinger (jason)
2011-01-01 14:33:17 CST (-0500)

Could be Pertusaria amara, but there are several outwardly-similar species. Chemistry would distinguish it readily. P. amara is excruciatingly bitter to the taste due to picrolichenic acid - C, KC+ red/violet. (K test is somewhat variable, sort of a weak reddish-orangish, probably depending on concentration?)

Created: 2011-01-01 12:33:44 CST (-0500)
Last modified: 2011-01-01 14:29:08 CST (-0500)
Viewed: 30 times, last viewed: 2016-10-24 13:19:10 CDT (-0400)
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