Fungi for ID

Sinaves · #1 (**permalink**) 17-01-2010, 03:01 PM

Hi,

I saw this fungi growing in Birch woodland late August last year nr Sheffield. I think it was solitary but I'm not 100% sure on that.

Please could anybody Id to Species, Genus or Family level, and much appreciated if you could include the diagnostic features you based you Id on.

Thanks very much

Ed

Beamish · #2 (**permalink**) 17-01-2010, 03:27 PM

Hi Ed,

looks like Amanita crocea to me. The stipe is lacking the typical pattern but there is a var. subnudipes characterized by that.
Don't take it as an ID, its just a guess.

Cheers,

Martin

mollisia · #3 (**permalink**) 17-01-2010, 03:40 PM

Hello Ed, Martin,

I would say this is Amanita fulva. The colour of the cap suites better then for crocea. But the main argument for fulva is the little piece of veil hanging at the cap margin near the right "corner" of the cap. Just right from the grass that vertically passes the cap. This veil remnant is distinctly rusty, so it must be A. fulva and not A. crocea, which would have a pure white volva.

best regards,
Andreas

Beamish · #4 (**permalink**) 17-01-2010, 05:27 PM

Hi Andreas,

convinced! I didn't know this species... (as so many!)

Best regards,

Martin

Sinaves · #5 (**permalink**) 17-01-2010, 05:51 PM

Thanks for both your replies and your diagnostic features.

I can see cap colour is not a very useful in differentiating between these two spp. as looking at pictures of them both, there is more of a continuum from pale orange to brown without two clear groups. So in the future I will remember volva colour is the way to go.

In addition, when I looked up the two spp., I read that A. crocea doesn't have veil remnants attached to the cap as opposed to A. fulva, supporting this identification.

Again thanks to both of you.

Ed

mollisia · #6 (**permalink**) 17-01-2010, 07:34 PM

Hallo Ed,

Quote:

Originally Posted by Sinaves

I can see cap colour is not a very useful in differentiating between these two spp. as looking at pictures of them both, there is more of a continuum from pale orange to brown without two clear groups.

Usually the cap colour is agood hint, but you are right, they can ovelap. And you just have such an exemplaire which could be either of the two.

Quote:

So in the future I will remember volva colour is the way to go.

yepp, this is a distinct feature.
But there are some more:
The stipe of A. crocea is +/- distinctly girdled in cap colour, the stipe of A. fulva is naked and whitish (but becoming orangebrownish with the age).
The size of A. crocea usually is significant bigger than that of A. fulva.

Quote:

In addition, when I looked up the two spp., I read that A. crocea doesn't have veil remnants attached to the cap as opposed to A. fulva, supporting this identification.

Usually both of them do not carry veil remnants on the cap, so this is not a good feature.

best regards,
Andreas