Lichens in the 'Local Monad'

We have recorded Wild Flowers growing in the 'Local Monad'. After glancing through and being Inspired by the Bulletin of the British Lichen Society, Winter 2018, we have decided to (try to) record Lichens growing in the 'Local Monad' viz.

That being said, we have a long way to go before we can even consider referring to ourselves as, 'Novice Lichenologists'! But we are thinking it will be Fun...

And we have already learned a new word viz. Saxicolous, meaning, 'living on or among rocks', or a variation thereof. Which begs the Questions: does this include growing on man-made Bricks, on Public Pavements &c.? We shall assume it does.

Footnote: the first Picture shows Lichens (assumed Lecanora chlarotera) growing on an Apple Tree in the Garden (at Home) and the second Picture shows Lichens (assumed Lecanora muralis) growing on a Public Pavement (in the 'Local Monad').

Update: (26 November 2018). Assumed Lecanora muralis and Xanthoria parietina seen growing on a Public Pavement (in the 'Local Monad') viz.