Notes: A wide group of sterile crusts were developing on the trees at this location. Most of them lacking any visible structure and were very similar to the one in the last photo attached, which nevertheless has some soredia. The others present more or less soredia like those in the photos attached.
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All C+ tests should be stronger if anything in KC. Go figure. Maybe the orange is the underlying bark showing through?? But going with C+ orange for the moment, British Flora suggests Lecanora expallens (discrete soralia, thin thallus, K-) Thiophanic acid is responsible for its C+o test. Will be able to confirm this readily with UV once we get that sorted out. :)
Returning to the place of this observation I made the spot tests in several specimens, all with the same result (see the new photo attached): a positive C+ orange reaction, while K- and KC-. I also saw that this species is much more spread locally than I suspected. At some trees is almost a continuous thallus (see the photo with trees).
that there is no danger of running out of stock.
It is a shame, but I did not spot the tests.
Created: 2012-06-10 16:24:02 PDT (-0700)
Last modified: 2012-06-10 16:24:05 PDT (-0700)
Viewed: 37 times, last viewed: 2016-10-27 16:37:13 PDT (-0700)