Observation 21410: Tuckermannopsis americana (Sprengel) Hale
When: 2009-05-29
No herbarium specimen

Notes: On a hardwood twig covered with several species of lichen, found in Zone 10 (one end of the “Miracle Mile”: Abies balsamea, Acer rubrum, Acer spicatum, Betula papyrifera, Picea sp., Pinus strobus, Populus tremuloides, and Quercus sp.; now I know why).

One other lichen: http://www.mushroomobserver.org/21409

Proposed Names

29% (1)
Eye3
Recognized by sight
56% (1)
Eyes3
Based on chemical features: Need to do KC test on medulla to be absolutely sure it’s not T. orbata, but that species typically has more ragged edges, I think. (T. americana is KC+ red (weak); T. orbata is KC-) Both are probably present in your area.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Olive is Tuckermannopsis, gray is Parmelia sulcata.
By: Jason Hollinger (jason)
2009-05-29 22:01:30 PDT (-0700)

Created: 2009-05-29 20:39:05 PDT (-0700)
Last modified: 2009-05-29 20:39:05 PDT (-0700)
Viewed: 35 times, last viewed: 2016-10-23 00:03:05 PDT (-0700)
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