Observation 167791: Lichen P. Micheli

When: 2014-06-18

Collection location: 7700 SE Stephens, Portland, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Notes:
On ornamental rock which I am documenting lichen colonization of. This obs. is for the yellow-green lichen, growing as dots and spots over the rock face.

Images

Obs. is for yellow-green lichen.
Obs. is for yellow-green lichen.
Observation is for yellow-green lichen.

Proposed Names

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Comments

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Yellow, crustose, on rock
By: Jason Hollinger (jason)
2014-06-19 09:30:56 PDT (-0700)

Options are usually: Candelariella, Acarospora, Rhizocarpon geographicum. But some species of Caloplaca can be that pale (C. citrina, for example, would be common on urban sidewalks). So, you need to see the apothecia, and K test is always a good idea until you’re familiar with the common suspects.

Created: 2014-06-19 08:12:33 PDT (-0700)
Last modified: 2014-06-19 10:05:26 PDT (-0700)
Viewed: 12 times, last viewed: 2019-07-14 07:09:46 PDT (-0700)
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