Observation 71172: Rhizocarpon geographicum (L.) DC.
When: 2011-07-07
Who: Byrain
No herbarium specimen

Notes: Growing on a boulder found at the perimeter of a marsh.

Proposed Names

28% (1)
Recognized by sight
61% (2)
Eye3 Eyes3
Recognized by sight: Definitely in the R. geographicum group with the pale yellow areoles and inset black lecideine apothecia. R. lecanorinum differs from the typical stuff by having “crescent-shaped areoles”. The one in the first photo could be it. (Also, R. lecanorinum has greenish epihymenium instead of reddish, but the spores are nearly the same.)

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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R. geographicum
By: Byrain
2011-07-26 07:47:46 CDT (-0400)

I thought it may be in this group, the typical variety was extremely common where this was found. Thanks again.

Created: 2011-07-08 03:54:45 CDT (-0400)
Last modified: 2011-07-27 06:09:13 CDT (-0400)
Viewed: 40 times, last viewed: 2016-12-08 11:32:25 CST (-0500)
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