Observation 215819: Caloplaca flavorubescens (Hudson) J.R. Laundon

Proposed Names

2% (2)
Eye3
Recognized by sight
84% (1)
Eyes3
Based on chemical features: yellow pigment is an anthraquinone (K+ violet)

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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I think the thallus is the same, though
By: Jason Hollinger (jason)
2016-01-09 21:32:56 CET (+0100)

Always that thin, smooth, shiny, continuous, bright yellow thallus. I admit I first considered Pertusaria, too. But even P. texana doesn’t have ostioles that bright orange! And xanthones are not K+ violet. I don’t know of any Pertusaria in N. America with anthraquinones. Or anywhere in the world for that matter, but don’t quote me on that — there are a lot of species of Pertusaria!

Just looked up this critter elsewhere,
By: Andrew Khitsun (Andrew)
2016-01-09 21:10:50 CET (+0100)

so basically if there is no apothecia visible, it will look like something completely different because of those warts.

The pertusarioid warts
By: Jason Hollinger (jason)
2016-01-09 08:43:10 CET (+0100)

are pycnidia I think.

Looks like Pertusaria to me at close range, but what’s with the yellow hue?
By: Andrew Khitsun (Andrew)
2015-09-10 02:05:08 CEST (+0200)

Created: 2015-09-10 01:20:43 CEST (+0200)
Last modified: 2016-01-09 08:42:28 CET (+0100)
Viewed: 64 times, last viewed: 2016-07-14 18:12:42 CEST (+0200)
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