It is on old poplar bark and very rare species here.
Soralia are grainy and above central lobes as Physcia caesia has according my guidebook of 2008, but lobes too white & wide.
(Internet Yandex map was used for location)


Photo taken by Jason

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Bottom side is not black as Ph erumpens has
By: Igor (Igor_Yevdokimov)
2019-10-27 19:09:05 CET (+0100)

Bottom side is not black as Ph erumpens has
I took a sample, but did not crush it much

Could this be P. erumpens?
By: Jason Hollinger (jason)
2019-10-27 19:03:38 CET (+0100)

Another point against P. caesia is that it has mottled white spots on the surface. And P. caesia very rarely grows on bark (in North America at least).

Created: 2019-10-27 18:47:50 CET (+0100)
Last modified: 2019-12-13 05:14:17 CET (+0100)
Viewed: 26 times, last viewed: 2020-04-08 13:15:32 CEST (+0200)
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