Observation 13553: Parmelia sulcata Taylor

When: 2008-11-04

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

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Parmelia sulcata has to be one of the most abundant lichens in my immediate area. This particular grouping of lichens was observed on a recently blown-off branch of a birch at a local college campus. The Parmelia sulcata is the central lichen with gray-green thallus, a black reverse, and raised white ridges.


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