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

Notes: Growing on a young Bay tree (Umbellularia)

Proposed Names

28% (1)
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 20:33:17 CET (+0100)

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 18:33:44 CET (+0100)
Last modified: 2011-01-01 20:29:08 CET (+0100)
Viewed: 31 times, last viewed: 2017-01-31 15:36:38 CET (+0100)
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