When:
2014-06-18
Collection location:
7700 SE Stephens, Portland, Multnomah Co., Oregon, USA [Click for map]
No herbarium specimen
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
| User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote. | |||||||||
| Vote | Score | Weight | Users | ||||||
|---|---|---|---|---|---|---|---|---|---|
| I’d Call It That | 3.0 | 0.00 | 0 | ||||||
| Promising | 2.0 | 0.00 | 0 | ||||||
| Could Be | 1.0 | 0.00 | 0 | ||||||
| Doubtful | -1.0 | 6.08 | 1 | ||||||
| Not Likely | -2.0 | 0.00 | 0 | ||||||
| As If! | -3.0 | 0.00 | 0 | ||||||
| Overall Score sum(score * weight) / (total weight + 1) |
-0.86 | -28.62% | |||||||
Comments
Add CommentCreated: 2014-06-19 08:12:33 PDT (-0700)
Last modified: 2014-06-19 10:05:26 PDT (-0700)
Viewed: 11 times, last viewed: 2017-06-18 06:08:42 PDT (-0700)
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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.