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On underside of slightly overhanging face of Si rock.

Seemed distinctive so thought it would be easy to identify, but haven’t been able to key out. (Have small specimen scrapped off substrate.)


thallus on right 2.5cm across
note brown lobate near margin

Proposed Names

83% (1)
Recognized by sight
Used references: McCune, Bruce. 2017. Microlichens of the Pacific Northwest
Jørgensen, P. M., Tønsberg, T. and Vitikainen, O. 2007. Nordic Lichen Flora Volume 3: Cyanolichens

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= Observer’s choice
= Current consensus


Add Comment
edited name to F. praetermissa group
By: Richard Droker (wanderflechten)
2017-11-27 13:04:58 CST (-0500)

Thanks again Jason.

Posting observation of another in F. praetermissa group.

Posted a specimen of F. coralloidea from southern California
By: Jason Hollinger (jason)
2017-11-23 13:15:07 CST (-0500)

observation 299826

Doesn’t really look the same. I would stick with “F. praetermissa s. lato”. At least that species complex is known to be a mess already!

Looks like something in the F. praetermissa complex
By: Jason Hollinger (jason)
2017-11-23 13:08:02 CST (-0500)

But that doesn’t grow on rock. What about F. coralloidea?