Could it be?

I spotted a fungus in the grass below the South Field which looked roughly the colours of a common species called Plums and Custard but seemed the wrong shape ande in the wrong place as Plums and Custard is usually growing out of a piece of wood. Looking at G Kibby's book I saw he included a species of which there had been only one possible UK record (at least in 2020 when it was published). It was called Bracken Plums and Custard (Tricholomopsis pteridicola). This fitted my description perfectly and looking at my photos I could see an old Bracken stalk nestling up against the fungus. I have contacted him and Kew fungarium to see what interest they have in my specimen. I'm awaiting a reply.