When: 2008-09-30

Collection location: Southeast Portland, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Found at Portland Adventist Hospital. This lichen was growing on a concrete slab for a light pole.


Proposed Names

5% (2)
Recognized by sight
28% (1)
Recognized by sight: There are several species of Physcia that might grow on concrete with the Candelaria also visible in the photo, according to USFS database, probably P. dubia.

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= Observer’s choice
= Current consensus


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