Observation 203808: Pertusaria plittiana Erichsen

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I find these specimen somewhat unusual:
By: Andrew Khitsun (Andrew)
2015-05-04 20:15:25 CDT (-0500)

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 19:58:41 CDT (-0500)
Last modified: 2015-05-04 20:09:25 CDT (-0500)
Viewed: 20 times, last viewed: 2017-02-19 21:53:20 CST (-0600)
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