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Observation 12197: Parmelia sulcata Taylor

When: 2008-10-07

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

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Sea-green lichen with many white elevated ridges. Seems to be growing from a mostly centralized clump, and spreading broadly outward. Black edges, so suspect black reverse. Broadly palmate structure and broadly lobed as well. Specimen is approximately 1/2 inch across.


Proposed Names

5% (2)
Recognized by sight
56% (1)
Recognized by sight: I’m still convinced this is the only essentially-flat foliose species with reticulate white markings. If you ever find one with white dots instead, then you’ll finally have a Flavopunctelia or Punctelia. (Although note, again, that there are a few closely-related species (though less common) that differ in details like soredia, isidia, but it looks like this specimen doesn’t have any yet.)

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= Observer’s choice
= Current consensus


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