Observation 79098: Lichen P. Micheli

When: 2011-09-25

Collection location: Serra de São Mamede, Portugal [Click for map]

Who: zaca

No specimen available

This observation refers to the red/brown stuctures in the midle of the thallus of a Diploschistes.

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I see it now
By: Jason Hollinger (jason)
2011-10-10 17:16:16 EDT (-0400)

Yes, you must be right. Odd to see a Diploschistes with so few apothecia. This must be a young thallus growing very quickly indeed.

Let me explain a little better.
By: zaca
2011-10-10 15:52:29 EDT (-0400)

This is the thallus of a Diploschistes (almost certainly a D. scruposus), because of the results of microscopy of the apothecia from the bottom part of the thallus in the 2nd photo that I collected, and I only collect from there. Only now I realize that the other structures that I emphasise in the 1st photo are other thing and certainly not apothecia.

You’ve done microscopy on this?
By: Jason Hollinger (jason)
2011-10-10 14:45:53 EDT (-0400)

You can see immersed apothecia or perithecia (or pycnidia?) in the lumpy part of the thallus. It would be interesting to see a microscopic section of those. Placopsis has big lecanorine apothecia, so that rules Placopsis out, I think.

Now, I´m trying
By: zaca
2011-10-09 16:26:00 EDT (-0400)

to catch them without going there. This is what I found in the midle of the thallus of a Diploschistes scruposus (I collected some apothecia and made the corresponding microscopy). Again, its seems to be cephalodia.

Created: 2011-10-09 16:22:09 EDT (-0400)
Last modified: 2011-10-09 16:22:10 EDT (-0400)
Viewed: 33 times, last viewed: 2017-06-10 00:57:14 EDT (-0400)
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