Observation 95847: Umbilicaria

When: 2012-05-27

Collection location: Umptanum Falls, Kittitas Co., Washington, USA [Click for map]

46.896° 119.3702° 801m

Who: nastassja (Nastassja Noell)

No specimen available

Substrate: Basalt. Totally exposed.

Habitat: Sagebrush steppe.

Lichen found nearby on rocks and moss: Candellariella sp., Xanthoparmelia sp., Pleopsidium sp.

Proposed Names

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Eye3 = Observer’s choice
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Unhappy Umbilicaria indeed!
By: nastassja (Nastassja Noell)
2012-06-01 12:36:53 PDT (-0700)

I didn’t grab a sample :( . I initially thought it was an Umbilicaria b/c with it’s warty bumps looked so much like the one next door with the apothecia, and just didn’t strike me as a Collema at the time; the photos later deceived me. Such a beautiful rosette it makes. Wish I had a sample to check what’s going on with it. Thank you for the correction Jason :) !!

Unhappy Umbilicaria!
By: Jason Hollinger (jason)
2012-05-30 23:55:00 PDT (-0700)

I’m pretty sure this is U. hyperborea, too, like the other observation, but I’ve U. angulata look like this when really stressed, too. I can see where you’re getting Collema fuscovirens from, because this thing hardly looks like a normal Umbilicaria which are supposed to be attached at a single point in the center. But you should be able to convince yourself that it is Umbilicaria in several ways. First, it might have a gyrose apothecium hidden somewhere in that big mess of tattered thallus(!) Second, it will have a clearly stratified thallus, with at least some white medulla visible if you start disassembling it. The medulla should be C+ pink/red. You can try wetting it, too. Collema should turn gelatinous when hydrated.

Created: 2012-05-30 19:10:06 PDT (-0700)
Last modified: 2012-06-01 12:37:15 PDT (-0700)
Viewed: 55 times, last viewed: 2017-06-12 23:21:10 PDT (-0700)
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