Notes:
A NJMA Foray collection. A small and fragile fb even by sect. Vaginatae standards. Found in pure deciduous woods dominated by beech, maple, tulip poplar and oak. A bit waterlogged, but still in good enough shape for Dr. T.

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Proposed Names

91% (2)
Used references: Listed in the material examined section in http://amanitaceae.org/?Amanita%20longicuneus
Based on chemical features: nrDNA data & analysis by LVK/RET

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= Observer’s choice
= Current consensus

Comments

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Factory scale it is not (whether unfortunately or fortunately I don’t know)
By: R. E. Tulloss (ret)
2019-02-28 07:36:54 PST (-0800)

However, I was once an engineer charged with improving factory efficiency in quality in one area. This was the focus of all the projects on which I worked in the old days before Bell Labs was split up. So I am very conscious of efforts of quality control on sequences before I submit them to GenBank, and I have a customer driven attitude about what we do in Roosevelt .

In mycology, I think I have identified five customer groups (they overlap a bit):

1. amateur mycologists (citizen scientists) and students of mycology that want fundamental training in ID or methodology,

2. amateur mycologists (citizen scientists) that want as broad and deep as possible a data base that serves to map gene sequences commonly used for ID to names of organisms,

3. professional ecologists and researchers on diversity that want as broad and deep as possible a data base that serves to map gene sequences commonly used for ID to names of organisms

4. professional mycologists or others (e.g., toxicologists) who are looking for samples and/or sequences from which they improve phylogenetic hypotheses about agarics and/or who want the same material and data to support description of new taxa.

5. Persons who want identifying characteristics (morphological or molecular) for as many named and/or identifiable organisms as possible.

My work is organized to yield product that is desired by these sets of customers.

The level of output required in the ideal case is impossible to do in Roosevelt. I will never finish what I am trying to do. I have a few years left.

My conclusion: Keep working as hard I you can for as long as I can.

Dr. Bas had a sign on his office door. “I do what I can. What is undone is what I could not do.”

Very best,

Rod

Thank you, Rod…
By: I. G. Safonov (IGSafonov)
2019-02-27 18:58:37 PST (-0800)

…for the update on the status of MO216467… Factory-scale sequencing! :-) As always, looking forward to learning more about your research.

216467 is presently 94th on the list to be sampled.
By: R. E. Tulloss (ret)
2019-02-27 17:49:48 PST (-0800)

Sampling depends on the speed with which laboratories can take up the work we send them. We have 74 samples (not included in the 94 mentioned above) going out before this weekend. We are in a halt with a second lab because of internal issues there. We move as fast as we can.

Very best,

Rod

This collection…
By: I. G. Safonov (IGSafonov)
2019-02-27 08:50:14 PST (-0800)

…looks sufficiently different from obs 282582 and others shown in the WAO website that I would have never guessed they all have the same nrDNA!

Could Dave W’s obs 216467 also be longicuneus? It was sampled for sequencing, too.

Sampled for DNA sequencing today.
By: R. E. Tulloss (ret)
2018-05-18 11:50:28 PDT (-0700)

Again, thanks for the material, Igor.

Very best,

Rod

Likely to be…
By: I. G. Safonov (IGSafonov)
2018-01-08 09:18:03 PST (-0800)

… the same as obs 216467.

:)
By: R. E. Tulloss (ret)
2017-12-16 07:43:02 PST (-0800)

:)

R

Rod,
By: I. G. Safonov (IGSafonov)
2017-12-15 22:53:17 PST (-0800)

I think I know the trees you are referring to – they are planted along that dirt trail originating from the pedestrian bridge over Rt. 29. I’ve never found anything under those massive oaks, so I’ve been wondering about how they were able to grow to large. :-) Now the oaks that had yielded your cinderellae produced some fragile gray grisettes a couple of years ago. I will keep looking for Ms. C. there, but I understand I have a better chance of winning a lottery. :-)

I usually found A. virginiana in the first week of July under the very larg…
By: R. E. Tulloss (ret)
2017-12-15 22:35:37 PST (-0800)

old oaks in the arboretum area of George Washington’s Crossing State Park.

Rod

That’s right, no ring
By: I. G. Safonov (IGSafonov)
2017-12-15 21:57:28 PST (-0800)

Finding undescribed exannulate or annulate grisettes hasn’t been a problem for me all these years, but surprisingly stumbling onto a known species of diminutive sect. Caesareae (e.g. virginiana or pachysperma) hasn’t happen yet. Go figure! :-)

It makes me think of one of the tiny North American species of the Caesareae.
By: R. E. Tulloss (ret)
2017-12-15 21:43:28 PST (-0800)

But…no ring, and the volva is way too big…I think.

Very best,

Rod

Yes, Rod
By: I. G. Safonov (IGSafonov)
2017-12-15 21:06:35 PST (-0800)

That’s one of the distinct features of this critter. The other one is its diminutive size. I recall there’s been plenty of rain preceding the foray, so lack of moisture doesn’t appear to be a size-limiting factor.

The tuberculate striations are very nice.
By: R. E. Tulloss (ret)
2017-12-15 21:02:25 PST (-0800)

I’m pretty sure I don’t know this species from the past.

Very best,

Rod

Herbarium Rooseveltensis Amanitarum (RET) has received specimen.
By: mcmacher
2017-11-02 10:36:43 PDT (-0700)

We have received the dried specimen. Thank you. It is being accessioned in Herbarium Rooseveltensis Amanitarum as RET 801-10.

Created: 2017-08-22 14:52:01 PDT (-0700)
Last modified: 2019-02-28 07:36:55 PST (-0800)
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