Red-staining cap ID.

[Gerel]

Hi

this is my first fungi post for a while and I'm out of practise.

This was found growing on rotting wood (possibly hazel), I would estimate the size as approx. 50mm across the cap. This was the only one there so I didn't take it for a spore print etc.

As you can see damaged areas of the cap and the gills stain strongly red.

Probably something quite obvious but as I say, I'm out of practise.



Thanks for looking,

Steve

[Lancashire Lad]

Hi Steve,

This has the characteristics of Brown Rollrim - Paxillus involutus.

EDIT - Or maybe not - I'm not so sure about those white gills

Regards,
Mike.

[Gerel]

Hi Mike,

I think you've just gone through my thought process . Brown roll-rim due to the rolled rim etc. but didn't quite fit. It is also quite definitely growing on a dead branch raised off the ground whereas I understood Paxillus to have soil as a substrate (I may have this wrong).


BTW looking into P. involutus I see that it is being moved from edible (when cooked) to deadly. Bit of a change there.

Steve

[flaxton]

Paxillus are prone to a fungal attack (I think by Apiocrea sp) which turns the gills white so this could be what you have here.

Mal

[mollisia]

Hi Steve,

Originally Posted by Gerel

BTW looking into P. involutus I see that it is being moved from edible (when cooked) to deadly. Bit of a change there.

Steve

if this is new to you, then you perhaps have either not heared of the same fate concerning Tricholoma equestre/auratum. This species also has been found to cause severe problems which caused several death in France and Poland yet.

best regards,
Andreas

[Chris Yeates]

Originally Posted by Gerel

. . . . BTW looking into P. involutus I see that it is being moved from edible (when cooked) to deadly. Bit of a change there.

Steve

I have always considered it toxic, Steve, and that it is going back decades . . . .

I understood that the problem was that if you ate it once you wouldn't notice any problems, but that it triggered antibodies which on any future occasion would then cause you extremely serious problems - like acute renal failure . . .

cheers

Chris

[mollisia]

Originally Posted by Chris Yeates

I have always considered it toxic, Steve, and that it is going back decades . . . .

I understood that the problem was that if you ate it once you wouldn't notice any problems, but that it triggered antibodies which on any future occasion would then cause you extremely serious problems - like acute renal failure . . .

cheers

Chris

Hello,

actually a (yet undiscovered) ingridient in Paxillus involutus causes antibodies, which in repeating meals may eventually cause an antibody-complex, which dissolves and agglutens the red blood bodies. Those agglutinated blood bodies then can clog organs (e.g. kidney, liver ...)
But this antibody-complex is very very rare and the circonstances about the amount of Paxillus and the repeating frequence of the meals is in no ways clear. There are people who eat their whole life Paxillus without any problems. Poland would be deserted if this antibody-complex would be the rule. So there must be some more circonstances we do not know yet. May be some kimnd of individual allergic reation.

But of course that doesn't mean that Paxillus involutus can be recommended for eating! You never know if you are the one or not ....

best regards,
Andreas