Observation 230371: Lichen P. Micheli

Notes:
Some tiny Lecanora-ish thing growing at certain areas of this valley oak (Quercus lobata) branch.

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Seems like a good suggestion
By: James Bailey (Silversea_Starsong)
2016-02-02 11:22:53 CST (-0500)

Lecanora dispersa seems to be a rock species rather than bark, and the apothecia seem much, much tighter in formation on a small look at images.

L. crenulata is the other one, but has wider apothecia margins…

Can probably call gray Lecanora
By: Jason Hollinger (jason)
2016-02-01 23:03:19 CST (-0500)

with scattered apothecia and no visible thallus Lecanora hagenii group or Lecanora dispersa group. I was calling most L. hagenii while I was living in the area, but I wonder nowadays if I was missing some of the variation and maybe overlooking related species.