Observation 203299: Parmotrema crinitum (Ach.) M. Choisy
When: 2013-01-26
No herbarium specimen

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This doesn’t look green/yellow enough to have usnic acid
By: Jason Hollinger (jason)
2015-04-25 08:24:07 PDT (-0700)

But we’ve already seen the tricks photos can play on color! Is this growing on bark? If so, and it really isn’t green enough to be P. xanthinum / P. madagascariaceum, then we should consider P. crinitum, another species with conspicuous ciliate isidia. Or maybe even P. mellissii, a species with coarse isidioid soredia mixed with isidia. (I think this clearly has elongate, even branched, isidia, though.)

Created: 2015-04-24 11:44:42 PDT (-0700)
Last modified: 2015-04-27 13:38:40 PDT (-0700)
Viewed: 35 times, last viewed: 2016-05-02 16:31:01 PDT (-0700)
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