Peltigera membranacea?

Peltigera membranacea?

Observation - Peltigera membranacea?. Description: I think this blueish/brownish grey lichen is possibly Peltigera membranacea, although I believe Peltigera praetextata is quite similar. I don't know much about lichens though, so I'd really appreciate confirmation or correction from any experts.

I think this blueish/brownish grey lichen is possibly Peltigera membranacea, although I believe Peltigera praetextata is quite similar. I don't know much about lichens though, so I'd really appreciate confirmation or correction from any experts.