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Unknown Lichen observation by Marnhull (#222)
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Observation on:
May 25, 2010 @ 16:00 | Posted on:
May 25, 2010 @ 17:54 (diff:
0 days)
The best two shots I could get while shooting into the afternoon sun. The surface reminded me of white sugar. This picture from deepest moose country again.
Comments by Site Members (scroll to post comment)
By Mac Pitcher on
5/27/2010 5:58:57 AM
Unfortunately it appears imposible to give an ID on this one. Is it a foliose lichen abundantly covered in isidia (vegetative propagules) or is it a granular crustose species. If the latter, it is probably an Ochrolechia or a Pertusaria. If the latter, under close examination do the "sugary" bundles appear faintly greenish. If so, it may be Bitter Wart Lichen, Pertusaria amara. A quick lick of the granules would confirm this - they are unpleasantly bitter, but harmless on this species.
mac
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