Observation 88000: Ochrolechia oregonensis H. Magn.
When: 2012-02-18
No herbarium specimen
0 Sequences

pretty pink fruit bodies.

Proposed Names

47% (2)
Recognized by sight
56% (1)
Recognized by sight: see comments; need C test for verification
56% (1)
Recognized by sight: see comments; would need to verify with C test, and check if algae form a continuous layer beneath the apothecia

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Hmmm, appears to be some confusion
By: Jason Hollinger (jason)
2012-02-20 23:43:25 CET (+0100)

Brodo et al. 2001 claim O. subpallescens does not have the double rim that O. oregonensis does, but Bruce Ryan says it does sometimes, and Curtis apparently believes it does, too.

Narrowing it down
By: Jason Hollinger (jason)
2012-02-20 23:32:01 CET (+0100)

All agree that it must be Ochrolechia. Here are Curtis Björk’s comments:

It’s an Ochrolechia. I wonder if it might be O. subpallescens, which
like O. oregonensis has a double rim. The outer rim often recedes
quickly, leaving only th inner rim. The outer rim is thallus-like in
color and texture, and the inner rim is more like the disc in color
and texture. The disc, outer rim and inner rim would have to be tested
with bleach (carefully so as not to let the reaction from one part of
the apothecium bleed into another part and give a false positive) for
the red reaction that would characterize O. subpallescens.

Oh, and sorry, I think the consensus agrees that they are pretty pink thingies, too. :)

Oh, now that’s just a challenge
By: Jason Hollinger (jason)
2012-02-20 20:23:21 CET (+0100)

I should clearly bring the “big guns” to bear. Curtis, where are you?? I’ll show you what a real star can do. :)

on the other hand…
By: Debbie Viess (amanitarita)
2012-02-20 16:09:25 CET (+0100)

nice to find a stump-the-stars lichen! ;)

sorry to disappoint
By: Richard Droker (wanderflechten)
2012-02-20 02:30:28 CET (+0100)

Don’t consider myself one to judge this. Agree with Jason about look and feel. The apothecial margins look relatively dark and under- “inflated”. Very observant of Jason to note the apparent algae. Wish I could help.

Oh please!
By: Jason Hollinger (jason)
2012-02-19 22:25:05 CET (+0100)

Richard Droker will probably recognize it at a glance. Really helps to be familiar with the local flora!

well Jason, if YOU’RE confused…
By: Debbie Viess (amanitarita)
2012-02-19 22:04:45 CET (+0100)

then its probably hopeless! ;)

I did not collect it.

I’m confused
By: Jason Hollinger (jason)
2012-02-19 21:46:49 CET (+0100)

It has the overall look and feel of Ochrolechia but the apothecial rims are clearly of a different color and texture from the thallus… but if you look at the craters where apothecia have been removed, it looks like there might be algae in the rims after all. Is there an Ochrolechia with double-rim and the thalline outer rim recedes to just a collar around the base?? What I’d do to see a section of one of these apothecia! Or a spot test or two.

Created: 2012-02-19 20:07:27 CET (+0100)
Last modified: 2012-02-20 23:44:26 CET (+0100)
Viewed: 95 times, last viewed: 2017-10-31 09:11:25 CET (+0100)
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