Observation 203808: Pertusaria plittiana Erichsen

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I find these specimen somewhat unusual:
By: Andrew Khitsun (Andrew)
2015-05-04 18:15:25 PDT (-0700)

the pustules on some of the thalli are not like pustules but more like tubercules (although the two words probably mean the same) – sticking like “sore thumbs” out of the lichen body, and the cracks between projections are canyon-like under the microscope. But only some thalli are like that – it can be seen in the photos – and others are “normal”.

Created: 2015-05-04 17:58:41 PDT (-0700)
Last modified: 2015-05-04 18:09:25 PDT (-0700)
Viewed: 19 times, last viewed: 2016-10-26 11:04:08 PDT (-0700)
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