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You probably have a better guess than most peoples’ certainty. I’m happy to have your confirmation and comments on ANYTHING I have found.
Was hoping the extremely wet conditions, for anything, really, would have been a giveaway. So much mist from the falls it got the lens of the camera wet before I could take more pics. Rock is either basalt or andesite, not that helps much. Striking place for photos, but mostly you’re just in awe of your surroundings. Upper Multnomah Falls over 500 feet high, lower falls an additional 69 feet, all in less than 100 yards of stream bed.
Better to see a large colony to get better idea of variation. Chemistry might help, but probably not in this case — probably just fumarprotocetraric acid like a dozen of others! C. chlorophaea group? Growing on rock narrows the possibilities a bit — rules out cupped form of C. cornuta and C. umbricola most likely, for example.
Created: 2010-09-24 15:46:16 PDT (-0700)
Last modified: 2011-04-25 10:59:48 PDT (-0700)
Viewed: 39 times, last viewed: 2016-03-28 09:08:11 PDT (-0700)