Observation 136333: Amanita rubescens Pers.
When: 2013-06-13
Collection location: Braga, Portugal [Click for map]
No herbarium specimen

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Comments

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You’re welcome, Elsa.
By: R. E. Tulloss (ret)
2014-02-01 11:52:39 ACDT (+1030)

We are still early in trying to gain an understand of the world’s rubescent taxa; you have really helped us get our feet on the ground.

Rod

You’re welcome
By: Elsa (pinknailsgirl)
2014-02-01 09:29:31 ACDT (+1030)

Thank you for keeping me in loop.

DNA from this material:
By: groundhog
2014-02-01 08:09:03 ACDT (+1030)

Hello Elsa,
This collection has been sequenced by Dr. Karen S. Hughes. We have obtained nrITS (“barcode gene”) and nrLSU sequences from the material. These sequences support the identification of this specimen as one of the several groups of european A. rubescens that range from Norway to Portugal and as far east as Turkey. Thanks for contributing this material!
-Naomi and RET

This collection has been received in good order.
By: R. E. Tulloss (ret)
2013-07-06 11:04:18 ACST (+0930)

Thank you for sending the material, Elsa.

Very best

Rod

I never saw anything close
By: Elsa (pinknailsgirl)
2013-06-15 00:09:00 ACST (+0930)

to Amanita submaculata here. But it made me remember one unidentified specimen that I found some months ago. As it lacks the base of the stem, the only thing I would want was some possibilities, would you take a look at it?
http://mushroomobserver.org/131898?q=1JGyQ

I must have posted my comments too late at night.
By: R. E. Tulloss (ret)
2013-06-14 22:30:37 ACST (+0930)

Here’s a link I didn’t give you:

http://www.amanitaceae.org?Amanita+submaculata

Right at the moment samples of rubescent taxa are being taken in our herbarium and sent off to our colleagues; and DNA sequences are coming back. We’re in the beginning of the collecting of certain pieces (loci) of DNA.

So the coming months are a very good time to send us collections, we will be able to sample them and send off the samples. The younger the material (in general) the better the chance of gettin clean extraction of DNA. In this case, “clean” means “interpretable with confidence”—i.e., not messy or confusing.

The first character to which I reacted was the over all color of the cap. The second was the strong patterning of the pigment in the cap (like distinct radial hairs seemingly embedded in the surface of the cap. It immediately made me think of the North American species I mentioned (below) because of the pibment issues as well as the non-striate cap margin and the brick colored stains where the skine of the cap was penetrated by a snail or slug or insect.

Take a look at the submaculata brief tab on WAO, and I think you’ll see the connection I made and why I asked about odor.

Very best,

Rod

HO, I’m a completely ignorant as I see…
By: Elsa (pinknailsgirl)
2013-06-14 21:34:36 ACST (+0930)

What is exactly different with this specimen, Rod?

And, don’t worry, I brought it home to send you :p, this way I can only send you the samples by the end of the year, LOL.

About the smell, yes it had a fruity odor.

This is very interesting to me.
By: R. E. Tulloss (ret)
2013-06-14 12:21:07 ACST (+0930)

Was there a particularly pleasant odor in the fresh mushroom…like apples or pears or anise?

Also, do other European MO participants commonly see what appears to be a gray and intensely virgate cap on A. rubescens?

In the eastern U.S. we have a species called A. submaculata that will bruise brick red around the edges of wounds very much as shown in this image. The name doesn’t apply to the mushroom in these images because submaculata has a very large partial veil that detaches from the lamellae in two distinct stages resulting in a partial fold that causes the veil to look like an 18th or 19th Century “ball gown.”

I have never seen a cap on on a rubescent, European taxon with this pattern of pigmentation. It is a shame that you have no herbarium specimen.

Very best,

Rod

Created: 2013-06-14 11:54:41 ACST (+0930)
Last modified: 2013-06-14 11:54:45 ACST (+0930)
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