I ran into this little critter in 2012. I’ve never attempted to identify the species. This specimen has its own identity, with plenty of character.
Notice that it has an audience of fellow fungi?
(I wonder what caused it to grow this way and I also wonder if it was Agaricus augustus. It does occur locally; I know one spot where I’ve seen the species twice in about 10 years. I never bothered to look into the species of or even underneath this particular mushroom at the time. It resembles a Jaguar hood ornament.)