When: 2009-11-03

Collection location: Westmoreland Co., Pennsylvania, USA [Click for map]

Who: Hamilton (ham)

No specimen available

Notes:

[admin – Sat Aug 14 02:07:45 +0000 2010]: Changed location name from ‘Westmoreland County, PA’ to ‘Westmoreland Co., Pennsylvania, USA’

Images

Copyright © 2010 Hamilton
Copyright © 2009 Hamilton
Copyright © 2009 Hamilton
Copyright © 2009 Hamilton
Copyright © 2009 Hamilton
Copyright © 2009 Hamilton
Copyright © 2009 Hamilton
Copyright © 2009 Hamilton
Copyright © 2009 Hamilton

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= Observer’s choice
= Current consensus

Comments

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Rod
By: Hamilton (ham)
2010-07-11 16:47:38 PDT (-0700)

I originally was calling these, to myself, Amanita muscaria var. guessowii but I thought it’d be more correct to call them A. amerimuscaria.

Pretty confused I am.

The center of the cap of A. muscaria var. guessowii
By: R. E. Tulloss (ret)
2010-07-11 16:40:25 PDT (-0700)

…(yellow variant of A. amerimuscaria) can be VERY reddish red-orange.

At

http://eticomm.net/~ret/amanita/species/muscpers.html

there are no robust rings at stipe bases, only weakly attached ring fragments.

Note that the top of the stipe is NOT yellow (pure white in fact) in several collections that (it happens) were confirmed to be var. persicina both microscopically and by DNA studies (see the famous Geml et al. paper). Notice that these same pictures do not have caps colored like the ones in the present posting.

Without dried material, it is not possible to tell if the photographs posted here are A. muscaria var. persicina or not. Identification of pictures is about probabilities.

R.

My only gill shot…
By: Hamilton (ham)
2010-07-11 11:40:45 PDT (-0700)

It’s kind of crappy, but maybe it’ll help. If not I’ll have to conduct a more thorough investigation in a couple months.

Forgive my ignorance.
By: Eric Smith (Magnavermis rex)
2010-07-11 11:33:22 PDT (-0700)

I’ve never found Amanita muscaria var. persicina, and these mushrooms don’t look like (to me) what I find and post here as A. amerimuscaria. I was under the impression that the binomial Amanita amerimuscaria referred to A. muscaria var guessowii.
Here are the reasons for voting the way I did.
1 The color of the cap and warts
2 Like Herb said, I was under the impression that no red form of A. amerimuscaria occurs around here.
3 Weiliiiiii finds Amanita muscaria var. persicina and I felt his field experience was a good indicator.

OK not the most scientific reasoning.

Since reading the posted description, and looking at the other pics,I can say that the stem seems kind of yellow, and as noted by Hammy, yellowish towards the apex on some. I think the pileus in some of these pics could be called subviscid. These observations make me think Amanita muscaria var. persicina.

Am I wrong or could all this be cleared up by looking at the gill edges to see if they’re very floccose or not?

Concentric rings around the base of the stem…
By: R. E. Tulloss (ret)
2010-07-11 11:00:34 PDT (-0700)

The presence of such well-formed rings suggests that Hamilton’s naming is as probable or more probable than persicina. The latter has very weak (or no) rings around the base of the stem. Also, to date, persicina has not proved to be a common species north of the Mason-Dixon line.

R.

Mushroom whisperer…
By: Hamilton (ham)
2010-07-11 07:46:50 PDT (-0700)

Hahaha!!

Hammy the Hamilton
By: AmatoxinApocalypse (AmatoxinApocalypse)
2010-07-11 07:45:57 PDT (-0700)

Hamilton, I have picked a ton of persicina so they call out to me when I see them, seriously.

Also the color of the pileus gave it away, as well as the base of the stipe in the first pic.

Lots of times I can’t tell a species from a photograph.
By: R. E. Tulloss (ret)
2010-07-11 07:29:10 PDT (-0700)

In fact, I probably should make guesses less often rather than more often.

R.

Ok…
By: Hamilton (ham)
2010-07-11 07:29:08 PDT (-0700)

These are some other shots from the same day. Sorry about the color balance and over-saturation. I didn’t realize that this was a site where everyone was exclusively pro photographers.

Anyhow, these mushrooms usually start off red on the cap, then turn from orange-red to yellow. Most of them are yellow from the ring to the apex of the stem. They have concentric rings around the base of the stem. Mature caps grew up to about 8 or 9 inches wide.

Thanks for the help.

I don’t think a case can be made for persicina from this picture.
By: R. E. Tulloss (ret)
2010-07-11 06:01:43 PDT (-0700)

You can’t see the volva on the stipe base—in addition to the comments from Noah. I voted “doubtful”

R

-
By: Noah Siegel (Noah)
2010-07-11 05:21:56 PDT (-0700)

you are looking at a picture that is over saturated and has screwed up color balance. just saying…

You agree…
By: Hamilton (ham)
2010-07-10 23:29:22 PDT (-0700)

…how can you and zim and Heeb I mean Herb Baker tell it’s Amanita muscaria var. persicina?

Agree
By: AmatoxinApocalypse (AmatoxinApocalypse)
2010-07-10 20:28:09 PDT (-0700)

I agree with Herb on this one, nice little bugger you got there Hamilton.