Observation 47898: Amanita sect. Vaginatae sensu Zhu L. Yang
When: 2010-07-01
No herbarium specimen

Notes: Started w/ “Amanita”, checked field guide and online searches, landed on it.

[admin – Sat Aug 14 01:58:46 +0000 2010]: Changed location name from ‘Boone County, Missouri’ to ‘Boone Co., Missouri, USA

Species Lists

Images

91971
92161
close-up of Amanita stipe
94796
Strong yellow tinge on stem, and a very substantial volva (these are 2 separate specimens, growing near each other). Adding these to the Amanita issue already started by me.
94797
Strong yellow tinge on stem, and a very substantial volva (these are 2 separate specimens, growing near each other). Adding these to the Amanita issue already started by me.

Proposed Names

-34% (3)
Eye3
Used references: Smithsonian Handbooks “Mushrooms”, mushroomexpert.com
7% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
the name game…
By: Debbie Viess (amanitarita)
2010-07-02 12:03:04 CDT (-0400)

welcome to the wonderful world of unsettled taxonomy! on the other hand, those mushrooms don’t much care what we call them…

lovely little amanita…notice the apricot staining of the inner volva (also common in my beloved west coast velosas) and those distinctively discrete striations at the caps edge. I have never seen this lovely amanita before….but maybe someday! ;)

Thank you for your off-line response…
By: R. E. Tulloss (ret)
2010-07-02 09:14:47 CDT (-0400)

I’m keeping a tab in my browswer for this observation for a few days, because the picture is so beautiful. I’m very glad to see the posting. When I get the time to do it, I’m going to go through recent material sent me from Missouri to see if I have something similar in those treasures.

I hope mushrooming and photography are bringing you pleasures and satisfactions.

Very best,

Rod

We are all at a loss to a greater or lesser degree…
By: R. E. Tulloss (ret)
2010-07-01 23:39:19 CDT (-0400)

at least in the sense that we simply don’t have enough names to correspond to taxa that we find.

There are at least two species in North America that people have called A. crocea. One has a plain stem like the ones in your picture; however, the cap colors that I have seen on that undescribed species are not so clear and bright as on the specimens in your photo. I have a provisional name for the species with undecorated stem that has a range running from the middle Atlantic Seaboard states of the U.S. at least to the neovolcanic region of Mexico: “Amanita pseudocrocea Tulloss nom. prov.”

The American species that is crocea-like and has a more decorated stem has the provisional name “Amanita americrocea Tulloss nom. prov.” These will be described provisionally and illustrated on the new Amanitaceae website when it goes public.

If you find more of this taxon in Missouri (I think Jay Justice has shown me a picture of something like this critter from either Arkansas or Missouri, and I’ve seen it myself in Kentucky), and if you have the time to do so, it would be terrific if you could take another fine photo and dry the specimen, also. Any information you can write down about the specimen would also be valuable.

There is a postal address on my summary page to which you can send dry material of this species if it strikes your fancy to do so.

R.

N.A. vs Europe
By: Mycologista (Mycologista)
2010-07-01 23:16:45 CDT (-0400)

Smithsonian Handbook says A. crocea is “Widespread in Europe and North America”. Roger’s Mushrooms says “Europe and North America”. Mushroom Expert says A. fulva is a European species. Don’t know where else to look. I clearly don’t have enough books!
I found it 10 days ago, I doubt if it’s still intact…I have another image of a close-up of the stipe…
Now I’ve seen lots more images of A. crocea, with the shredded, color-tinged stipe.
I am at a loss!

This isn’t crocea…
By: R. E. Tulloss (ret)
2010-07-01 22:55:56 CDT (-0400)

The stipe of A. crocea has a very distinctively decoration…and is known only from Europe.

I think this species may be a bit too orange for A. fulva, however. Is there any chance you can collect these specimens and dry them?

Very best,

R.

Created: 2010-07-01 12:31:41 CDT (-0400)
Last modified: 2012-06-06 17:39:21 CDT (-0400)
Viewed: 311 times, last viewed: 2016-12-08 02:17:18 CST (-0500)
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