Observation 59919: Umbilicaria phaea Tuck.
When: 2010-11-27
No herbarium specimen

Notes: Any idea what the brown one is? and the white one? I think the orange is probably Caloplaca and the chartreuse is Pleopsidium.

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Yellow one is still Acarospora, by the way
By: Jason Hollinger (jason)
2010-12-01 11:34:47 CST (-0500)

The most likely candidate looks to be Acarospora socialis. It’s the fact that it is “subsquamulose”, with the lobes thick and elevating from the substrate. There aren’t many that do that, and this (socialis) is the one that’s fairly common and widespread.

Brown is Umbilicaria for sure
By: Jason Hollinger (jason)
2010-11-29 09:50:07 CST (-0500)

Playing the odds, it is almost certainly U. phaea, the dominant species in the desert.

As for the other “incidentals”:

orange: Caloplaca trachyphylla, I agree (also a dominant desert species)
yellow: Acarospora contigua group (see comments in _observation 59918)
white: Rhizoplaca melanophthalma (also could expect R. chrysophthalma with orange apothecia_)

Created: 2010-11-29 08:37:34 CST (-0500)
Last modified: 2010-11-29 09:45:28 CST (-0500)
Viewed: 29 times, last viewed: 2016-03-29 10:56:24 CDT (-0400)
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