Mushroom ID

[thelawnet]

Any thoughts?

This was found in local park, on grass, next to a conifer hedge and in the shade of a large oak.



The disclouration on the underside is because I stored it in the waterbottle carrier of my bike and it got pressed into the metal causing the dark green brusing you see.

It's a large flat mushroom with a fairly tough stem.

[NickCantle]

Looks like a Xerocomus to me.

[thelawnet]

Originally Posted by NickCantle

Looks like a Xerocomus to me.

It's either boletus/xerocomus truncatus or chrysenteron.

Truncatus looks like a good match?

California Fungi: Boletus truncatus

[cybershot]

Originally Posted by thelawnet

It's either boletus/xerocomus truncatus or chrysenteron.

Truncatus looks like a good match?

California Fungi: Boletus truncatus

Except that it's not a British species, so I'd stick with X. chrysenteron.

David

[flaxton]

X. porosporus is the European equivalent of truncatus but this has no red in the stipe. Therefore X chrysenteron gets my vote

Mal

[mollisia]

Hello,

my vote is Xerocomous porosporus, because the dark, olive-brownish stipe is very typical, also that the cracks on the cap are never red. X. porosporus gets red colours on (and in) the stipe with age, but more like a ring zone in the upper part and not starting from the base as in X. chrysenteron.

best regards,
Andreas

[NickCantle]

My vote is just Xerocomus

[flaxton]

Porosporus normally associated with broadleaved trees and sometimes has a red zone on the stipe chrysenteron mainly associated with conifers (and fagus).

Mal

[SheffieldLass]

You've now got me wondering about one I found last October, close to oak.

I decided from the spores which had a high percentage of truncated ends that it must be X porosporus, but some things didn't quite fit, in particular the pores didn't bruise blue, just slightly brownish. Cap flesh was whitish-buff coloured, staining slightly ochre when cut, and very slightly blue just above the pores. The stem flesh stained red and blackish towards the base, the upper part was yellowish. Spore size was typically 11.5-15 x 4.3-5.7um.





Melanie

[Chris Yeates]

Originally Posted by thelawnet

Any thoughts?

This was found in local park, on grass, next to a conifer hedge and in the shade of a large oak.



The disclouration on the underside is because I stored it in the waterbottle carrier of my bike and it got pressed into the metal causing the dark green brusing you see.

It's a large flat mushroom with a fairly tough stem.

I must admit my first thought was chrysenteron . . . but I can see where Andreas is coming from - though I've never seen reddening like that in porosporus and it grows in the park next to where I work so I've seen it in all its stages

do you have the specimen? could you dry it? or have you a spore print? any of these would make an ID much more straightforward

cheers

Chris