Contributors » Marnhull » Unknown Lichen
Unknown Lichen observation by Marnhull (#215)
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Observation on:
May 22, 2010 @ 16:00 | Posted on:
May 23, 2010 @ 16:03 (diff:
1 days)
I'm posting this in case Mac wants to make a comment. Perhaps the lichens with dark apothecia are Button lichens (from post #91). The rock was pushed to the side of a road in November 1987, so I assume the lichens will soon be 23 years old.
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By Mac Pitcher on
5/24/2010 1:37:25 PM
The rusty coloured lichens could possibly be Porpidia flavocaerulescens (Orange Boulder Lichen) or Tremolecia atrata (Rusty Rock Lichen), but these are guesses. Microscopy and chemical testing may be required to confirm. There are also other orangish crustose lichens on rock. Interesting age observation - crustose on rock are often slow-growing, and maybe hundreds, if not thousands of years old. Thanks for posting! Mac
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