Observation 203808: Pertusaria plittiana Erichsen

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I find these specimen somewhat unusual:
By: Andrew Khitsun (Andrew)
2015-05-04 21:15:25 CDT (-0400)

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 20:58:41 CDT (-0400)
Last modified: 2015-05-04 21:09:25 CDT (-0400)
Viewed: 19 times, last viewed: 2016-10-26 14:04:08 CDT (-0400)
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