Notes: Little black apothecia, but on obsidian! Maybe that will make it easier, I have this rock too so I will hopefully add more information later.
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Thanks again for the info, its always informative. :) This might end up on the back burner for a little, but I won’t forget about it.
I’m guessing Acarospora. Be sure to do C test on section of apothecium under microscope. Should have a bazillion tiny spores per ascus. The other thing you’ll need to observe if I’m right is the distribution of the algae around the apothecium: is it in a continuous layer, or is it interrupted by bundles of hyphae? With all that, we can probably put a name to it.
Created: 2012-05-31 08:17:16 BST (+0100)
Last modified: 2012-05-31 08:17:18 BST (+0100)
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