Observation 63549: Physcia atrostriata Moberg
When: 2008-09-07
No herbarium specimen

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Yes
By: Vitaly Charny (vcharny)
2011-02-16 18:36:18 PST (-0800)

Yes, the specimen #61636 looks very similar to this one

Here it is
By: Jason Hollinger (jason)
2011-02-16 18:30:26 PST (-0800)
Let’s go with P. atrostriata for now, then…
By: Jason Hollinger (jason)
2011-02-16 18:26:39 PST (-0800)

Oh, there, good thing I keep notes! I have a nice photo of the underside of the species, clearly showing the same short, simple black rhizines. And, yes, the lobe shape is right on, too. I’m glad my computer has a better memory than I do. :)

black rhizines…
By: Jason Hollinger (jason)
2011-02-16 17:48:19 PST (-0800)

…rule out Anzia which has a black foamy layer. Leaves Physcia americana, P. atrostriata and Heterodermia albicans, I’d say. I’m not sure about P. atrostriata, but most Physcia have white rhizines. Also it looks a bit too broad for those Physcia. I’d have to go with Heterodermia until we think of something better.

Created: 2011-02-16 17:27:59 PST (-0800)
Last modified: 2011-02-16 21:50:51 PST (-0800)
Viewed: 49 times, last viewed: 2016-10-26 17:54:11 PDT (-0700)
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