Agaricus ID

[RobSutton]

Getting nowhere with this.

Growing in deep leaf litter under Beech on Limestone
Cap: up to 70mm
Smell: of Bitter Almond
Flesh: unchanging when bruised or cut
Spores small: 5.1-6.3µ x 3.7-4.0µ



Any hints?

Thanks

[flaxton]

Rob
I think this could be Agaricus prophyrizon. Not one I have seen but it fits fairly well with the description in B&K
Mal

[SheffieldLass]

Originally Posted by flaxton

Rob
I think this could be Agaricus prophyrizon. Not one I have seen but it fits fairly well with the description in B&K
Mal

That is also the one that Funga Nordica keys out to, so it looks like a good candidate .... only spelt slightly differently A porphyrrhizon. ... Was the cap fairly pinkish? Here is one reliable photo on the internet Agaricus porphyrizon.
And also one from someone on here (Andreas ) who should certainly be able to tell you yeh or ney .... Mushroom Observer: Name: Agaricus porphyrizon

Melanie

[NickCantle]

From the image you've supplied Mel, Agaricus porphyrizon looks like it bruises yellow. Rob's was "unchanging when bruised or cut"

[RobSutton]

Hi Guys

Thanks for the help - I had a look at A. porphyrhizon but rejected it because I couldn't pick up any yellowing on bruising and there didn't seem to be any pinkish hue on the cap - but that's where the keys kept sending me?

[SheffieldLass]

Originally Posted by RobSutton

Hi Guys

Thanks for the help - I had a look at A. porphyrhizon but rejected it because I couldn't pick up any yellowing on bruising and there didn't seem to be any pinkish hue on the cap - but that's where the keys kept sending me?

It is interesting that Funga Nordica gets to A porphyrhizon by carefully selecting the 'does not bruise yellow (or red)' options at every turn .... Some of the yellow stainers really do stain/bruise yellow and very quickly too, and ones that aren't considered yellow stainers do go yellowish to a certain degree. So maybe it is a distinction between degrees of yellowing ? Do you have FAN 5? That should have additional micro details which may be of use to help reject or confirm it. I don't have that volume, otherwise I'd look it up for you. However I noticed that various comments in FN suggest that the genus is in need of further study which is maybe why you haven't reached an id that is satisfyingly convincing .....

Melanie