...plus I have heard of a maritime influence helping things that otherwise like a calcareous setting - salt spray perhaps makes things interesting chemically. Is that possible? Talking shells, I did find a fresh largish Violet Sea Snail yesterday when searching for bits of plastic on the beach. Nice

Thanks so much Brian. Quite a few podetia but pretty short and stunted, and seemingly jumbled jaunty angles - i blame the uneven squamules they are sprouting from. We're acidic as anything here, but possibly there's an element of shell in the sand that gets blown around, plus...

Squamules mostly undivided with irregular margins. Smaller ones mainly uniform pale lime green above. Larger squamules with "giraffe" patterning. Squamules all cottony white below.
The whole thing was much smaller than I expected to C. rangiformis to be. Whole sample about 20mm across.

The squamules were little divided to undivided (with irregular margins). Small ones were a uniform pale lime green above; larger ones had patterning of green splodges like podetia (giraffe markings?). Cotton white below.

Great bird. Poor hyphenation.
Also sad memories of an old spill victim.