Observation 195938: Candelaria pacifica M. Westb. & Arup
When: 2015-01-10
(35.4514° -120.6437° 280m)
Who: J-Dar
No herbarium specimen

Notes: On old wood ranch fence.

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Great, thanks for following up!
By: Jason Hollinger (jason)
2015-01-19 10:48:03 CST (-0600)

The joys of lichen spot tests — some really don’t like to be tested! :)

K- Red
By: J-Dar
2015-01-19 10:09:50 CST (-0600)

Used roughly 10% solution of sodium hydroxide, not potassium hydroxide.

Tested on Caloplaca and Xanthoria, both K+ Red immediately. Candelaria was very hydrophobic, so difficult to get solution to set in, but no pink to red color change, just a darkened area. New photo uploaded.

Might want to verify with K test
By: Jason Hollinger (jason)
2015-01-10 22:09:32 CST (-0600)

This doesn’t look well-enough developed to be a Xanthoria, e.g., X. candelaria. But K test would remove all doubt, as Xanthoria would be K+ instant deep wine red, while Candelaria should be at most very weakly K~ pinkish.

Created: 2015-01-10 21:53:19 CST (-0600)
Last modified: 2015-01-19 10:46:30 CST (-0600)
Viewed: 46 times, last viewed: 2017-06-19 17:51:07 CDT (-0500)
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