Observation 107144: Flavopunctelia flaventior (Stirton) Hale

When: 2012-08-06

Collection location: Whitefish Dunes State Park, Wisconsin, USA [Click for map]

Who: Andrew Khitsun (Andrew)

Specimen available

Proposed Names

18% (2)
Recognized by sight
84% (1)
Recognized by sight: conspicuous pseudocyphellae, yellow-green cortex, medulla KC+r

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Not at all!
By: Jason Hollinger (jason)
2012-08-26 21:19:44 PDT (-0700)

I’ve been fooled by this thing, too. Sounds hard to do in retrospect, but there’s something about it that blends into other groups like Cetrelia, Parmotrema, and such.

Shame on me
By: Andrew Khitsun (Andrew)
2012-08-26 21:13:35 PDT (-0700)

for not recognizing an old friend. Medula appears bluish only if I bring the light very close – possibly just flooding it with light. I don’t have anything to compare with, since I never encountered Cetrelia or Canoparmelia.

By: Jason Hollinger (jason)
2012-08-26 20:36:41 PDT (-0700)

Not sure what’s up with the soredia clumping into balls is about, though. This just has lecanoric acid, so it should be UV-. Probably worth taking note of that to help calibrate what “UV-” looks like on a really bright white medulla. Next time you see Canoparmelia or Cetrelia compare the reactions. Those are always very bright UV+ for me.

Weird thing (or weird me :-)
By: Andrew Khitsun (Andrew)
2012-08-26 17:13:54 PDT (-0700)

Lower surface white, upper surface covered with lots of pseudocyphellae. Medula K-, KC+ orangish, UV+ bluish. Soredia tends to be rolled into tiny balls. What is it?

Created: 2012-08-26 17:07:14 PDT (-0700)
Last modified: 2012-08-26 20:33:29 PDT (-0700)
Viewed: 25 times, last viewed: 2017-06-13 20:34:56 PDT (-0700)
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