This is a quite common lichen at this place. I have encontered it in almost all of my field trips here. I had the suspicious that it might be Apicilia and, in particular, _A. contorta, due to the similarity with others that I found in the past in other places, despite of the thallus seemed to be more squamulous. With this particular specimen I was able to see the spores and, although the photos from microscopy are not so clear as it should, one can infer that:
1- the few asci observed have six spores each;
2- the spores are globose to subglobose;
3- the dimensions of the spores are greater than in other Aspicilia
spp. that I had observed: Average values Me = 19.9 × 15.3 µm (N=18).
I think that these facts are enough to “confirm” the initial suspicious about the species.
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Created: 2011-07-21 17:25:05 EDT (-0400)
Last modified: 2011-07-21 17:25:07 EDT (-0400)
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