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OfflineAlan RockefellerM
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ID Request
    #8059083 - 02/23/08 01:38 AM (15 years, 11 months ago)

















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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Invisiblesui
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Re: ID Request [Re: Alan Rockefeller]
    #8059189 - 02/23/08 02:57 AM (15 years, 11 months ago)

no clue, but THAT  is how you ask for an ID. :yesnod:


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"There is never a wrong note, bend it."
Jimi Hendrix



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OfflineAlan RockefellerM
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Re: ID Request [Re: sui]
    #8060123 - 02/23/08 12:09 PM (15 years, 11 months ago)

Here are two pictures of the pileipellis, 100x:






Also, there was no bulb at the base of the stem.


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OfflineToxicManM
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Re: ID Request [Re: Alan Rockefeller]
    #8062369 - 02/23/08 09:20 PM (15 years, 11 months ago)

I'd start with Amanita, although that specimen is going to be a challenge.

Are the spores amyloid?

Happy mushrooming!


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Happy mushrooming!


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Offlinesnoot
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Re: ID Request [Re: ToxicMan]
    #8062442 - 02/23/08 09:48 PM (15 years, 11 months ago)

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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Offlinesmily
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Re: ID Request [Re: snoot]
    #8062444 - 02/23/08 09:50 PM (15 years, 11 months ago)

wow those are nice good work with pics

:smile:


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    CrAnKy PiLlOwS YeAh PiLlOwS


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OfflineAlan RockefellerM
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Re: ID Request [Re: Alan Rockefeller]
    #8067275 - 02/25/08 12:46 AM (15 years, 11 months ago)

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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Invisiblecactu
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Re: ID Request [Re: Alan Rockefeller]
    #8067775 - 02/25/08 07:11 AM (15 years, 11 months ago)

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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OfflineToxicManM
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Re: ID Request [Re: Alan Rockefeller]
    #8068098 - 02/25/08 10:15 AM (15 years, 11 months ago)

Well, Rod Tulloss *is* the man on that genus. Nice response from him, too.

Happy mushrooming!


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Happy mushrooming!


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InvisiblegeorgeM
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Re: ID Request [Re: Alan Rockefeller]
    #8068282 - 02/25/08 11:38 AM (15 years, 11 months ago)

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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OfflineAlan RockefellerM
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Re: ID Request [Re: Alan Rockefeller]
    #12000112 - 02/10/10 03:46 AM (13 years, 11 months ago)

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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InvisibleCureCat
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Re: ID Request [Re: Alan Rockefeller]
    #12002080 - 02/10/10 12:36 PM (13 years, 11 months ago)

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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OfflineTwiztidsage
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Re: ID Request [Re: CureCat]
    #12002228 - 02/10/10 12:57 PM (13 years, 11 months ago)

It certainly doens't look like any L. leucothites I have seen.

Here are some from Seattle last season:



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Offlinesnoot
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Re: ID Request [Re: Twiztidsage]
    #12004658 - 02/10/10 07:16 PM (13 years, 11 months ago)



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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