|I’d Call It That||3.0||0.00||0|
sum(score * weight) /
(total weight + 1)
examining very light-colored specimen like this. But it turns out to be “just” Lecanora muralis. The difference is, as far as I know, the former is supposed to have heavy pruina on lobe tips and discs (while pruinose forms of the latter are possible too). There are difference in algal layer between the two, but that’s not something I am equipped to deal with.