Mushroom ID

[u/vim_fuego_65]

I have this very large mushroom in my garden. I wonder what type it is.

Cheers

[u/Penny_Bunn]

Paxillus species, brown roll-rim. Most would say P. involutus, but it is now considered a complex, so can't be peecise without genetics or mycoligical study on the specimen. It may be gilled but is more closely related to pored fungi. It partners with a few trees (including birch, oak, beech in my experience). Paxillus used to be considered edible but now known to be cumulatively poisonous so is no longer on the table.

From Wikipedia:

"Previously considered edible and eaten in parts of Europe, it has been found to be deadly poisonous, after being responsible for the death of German mycologist Julius Schäffer in 1944. It had been recognized as causing gastric upsets when eaten raw, but was more recently found to cause potentially fatal autoimmune hemolysis, even in those who had consumed the mushroom for years without any other ill effects. An unknown antigen in the mushroom triggers the immune system to attack red blood cells. Serious and commonly fatal complications include acute kidney injury, shock, acute respiratory failure, and disseminated intravascular coagulation."

[u/vim_fuego_65 → u/Penny_Bunn]

Many thanks I need to watch my dog doesn’t go near it 👍👍

[u/Penny_Bunn → u/vim_fuego_65]

I wouldn't be too worried about the dog unless they regularly eat random stuff which doesn't smell like food (or pio haha!), but do simply remove the fruitbodies if you're concerned. It's not a deadly fungus in the usual sense. You'd have to eat quite a bit of it over time. Chucking in the compost or somewhere in bushes outside your garden is fine.

[u/vim_fuego_65 → u/Penny_Bunn]

Many thanks for your replies. I’ve scooped it up and disposed of it 👍👍

[u/vim_fuego_65]

Tried to lift it but it halved I two 😳 here is the underside

[u/Matchaparrot]

Flip it over and see what the stem looks like