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Thumbnail ImageUnknown lichen on May 21, 2010
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Contributors » Marnhull » Unknown lichen

Unknown lichen discovered by Marnhull (#222)

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Sighting Info

Observed: May 25, 2010 @ 4:00 PM
Posted on: May 25, 2010 @ 7:24 PM (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.

Sighting's Identification

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Newfoundland Nature

Newfoundland Nature

Comments by Site Members (scroll to post comment)

By Mac Pitcher on 5/27/2010 7:28:57 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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