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Alan Rockefeller
Mycologist


Registered: 03/10/07
Posts: 48,276
Last seen: 2 hours, 16 minutes
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ID Request
#8059083 - 02/23/08 01:38 AM (15 years, 11 months ago) |
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Gill edge, 100x, interesting notches

Pleurocystidia 400x

Pleurocystidia 400x, stained with methylene blue

Spores, 1000x



Unpleasant odor, kind of hard to describe, kind of like a rodent cage. Free gill attachment. Interesting notched gill edges, though I was not able to find any cheilocystidia. Pleurocystidia was abundant. The stipe has brownish stains and a skirt like annulus. Spores smooth with thick walls. Spore print is white.
It was growing near some Juniper bushes in leaf litter.
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sui
I love you.



Registered: 08/20/04
Posts: 31,853
Loc: Cali, Contra Costa Co.
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no clue, but THAT is how you ask for an ID.
-------------------- "There is never a wrong note, bend it." Jimi Hendrix
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Alan Rockefeller
Mycologist


Registered: 03/10/07
Posts: 48,276
Last seen: 2 hours, 16 minutes
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Re: ID Request [Re: sui]
#8060123 - 02/23/08 12:09 PM (15 years, 11 months ago) |
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Here are two pictures of the pileipellis, 100x:


Also, there was no bulb at the base of the stem.
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ToxicMan
Bite me, it's fun!


Registered: 06/28/02
Posts: 6,722
Loc: Aurora, Colorado
Last seen: 5 hours, 28 minutes
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I'd start with Amanita, although that specimen is going to be a challenge.
Are the spores amyloid?
Happy mushrooming!
-------------------- Happy mushrooming!
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snoot
look alive ∞




Registered: 01/30/05
Posts: 9,640
Loc: 45º parallel
Last seen: 6 hours, 47 minutes
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Re: ID Request [Re: ToxicMan]
#8062442 - 02/23/08 09:48 PM (15 years, 11 months ago) |
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alan those pics are stunning. !!! nice job
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∞ I am incapable of conceiving infinity, and yet I do not accept finity. - Simone de Beauvoir -
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smily
lookin 4 my ass wit both handz



Registered: 07/13/06
Posts: 2,592
Loc: Lee HO FooKs
Last seen: 9 months, 3 days
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Re: ID Request [Re: snoot]
#8062444 - 02/23/08 09:50 PM (15 years, 11 months ago) |
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wow those are nice good work with pics
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Alan Rockefeller
Mycologist


Registered: 03/10/07
Posts: 48,276
Last seen: 2 hours, 16 minutes
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Quote:
Rod Tulloss said: The rodent cage odor (“old mouse nest” in my past thinking) is a good indicator for one of the basal amanitas of sect. Limacella, subsect. Vittadiniae. There are several of these in North America, all are rather limited in terms of [known] geographic distribution. They make up a very interesting group. Look up “vittadinii” on the Amanita Studies web site, and you will find a bit of information on the way the subsection Vittadiniae is broken up into smaller groups called stirpes (singular, stirps). A little exploration among these stirpes will lead to finding taxa with “old mouse nest” odor, such as A. nauseosa (which is NOT the species depicted by Alan in this observation). By the way, amanitas do not have pleurocystidia or cheilocystidia. Their mode of development actually would seem to prohibit the latter because the gill edge is occupied with a cable-like structure that runs its entire length and that gives rise to a long cluster of inflated cells that die and break apart in order to allow the stipe or annulus to break free of the gille edge—there is no room for cystidia on the gill edge.
Lack of a basal bulb on the stipe is common in subsect. Vittadinii (as well as in sects. Amidella, Caesareae, and Vaginatae). Remember “bulb” is NOT EQUAL to “volva.” In Amanita the bulb is comprised of stipe and/or primordial tissues, NOT volval tissue. There are very good views of the volval warts on the pileus in two of the photographs.
Since Alan gives photographs of the spores and since I’m reasonably convinced that this is an Amanita, I thought I’d take a look at what my draft keys would say about determination. I see several spores in Alan’s photographs that appear to have length/width ratio (Q) of 1.5 or greater; at least one surely exceeds Q=1.6. So, for the sake of argument, assume the average Q exceeds 1.5. In addition we apparently have a narrow ring on the stem. The species is not one with a great deal of volva distributed over the stem below the partial veil. It seems reasonable to eliminate all stirpes except the largest—stirps Vittadinii. Within this stirps, the relatively narrow spores suggest at least A. prairiicola (=malheurensis). The spores of A. pruittii [provisional name] (Arora’s anonymous amanita) have average Q between extremes of 1.17 and 1.35 (if I remember correctly); so I wouldn’t look at pruittii first. Too many assumptions here to have certainty, but Alan might check further on A. prairiicola as a possible determination. Alan, if you’d like an updated PDF of my description (full macro and micro) of prairiicola that appeared in the Kansas Mycolog a couple of years back, just ask. Very best, Rod
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cactu
culture and magic


Registered: 03/06/06
Posts: 3,913
Loc: mexicoelcentrodelconocimi...
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nice, amanita was my first impresion , too and the base seem a bit enlarge , and that semi buried habit. then i think tricholoma , but have an amanita look at leats macroscopically speakin . beatiful pictures keep it going my friend
all my best vibrations .......
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  cuando una rafaga del pensamiento nos pasa al lado se puede sentir que valio la pena haber vivido, y cuando ese pensamiento se convierte en sueño no paramos de soñar hasta realizarlo
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ToxicMan
Bite me, it's fun!


Registered: 06/28/02
Posts: 6,722
Loc: Aurora, Colorado
Last seen: 5 hours, 28 minutes
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Well, Rod Tulloss *is* the man on that genus. Nice response from him, too.
Happy mushrooming!
-------------------- Happy mushrooming!
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georgeM
Human



Registered: 07/05/05
Posts: 1,748
Loc: Osage Cuestas
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There was a move to elevate A. prairiicola to the official state fungus here in Kansas haahaa. I'm pretty sure there are several articles on the species floating around my library. If you at all interested in copies let me know. If you receive the updated version of Tulloss' Mycolog article I would really like to see it.
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Alan Rockefeller
Mycologist


Registered: 03/10/07
Posts: 48,276
Last seen: 2 hours, 16 minutes
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Quote:
Since Alan gives photographs of the spores and since I’m reasonably convinced that this is an Amanita, I thought I’d take a look at what my draft keys would say about determination.
This turned out to be a Leucoagaricus, maybe L. naucinus.
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CureCat
Strangest


Registered: 04/19/06
Posts: 14,058
Loc: clawing your furniture
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Quote:
Alan Rockefeller said: This turned out to be a Leucoagaricus
I was gonna say... The stature, but especially the pileus and the stipe seem like Leucoagaricus... Though lack of a thick, persistent annulus makes me think this is very unlikely to be L. leucothites (=L. naucinus). I also find that L. leucothites usually has a smoother, paler cap.
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Twiztidsage
Fungal Databaser



Registered: 12/05/08
Posts: 8,089
Loc: Seattle
Last seen: 9 years, 2 months
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Re: ID Request [Re: CureCat]
#12002228 - 02/10/10 12:57 PM (13 years, 11 months ago) |
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It certainly doens't look like any L. leucothites I have seen.
Here are some from Seattle last season:
 
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snoot
look alive ∞




Registered: 01/30/05
Posts: 9,640
Loc: 45º parallel
Last seen: 6 hours, 47 minutes
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sunset in minnesota
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∞ I am incapable of conceiving infinity, and yet I do not accept finity. - Simone de Beauvoir -
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