Observation 140598: Amanita longipes Bas ex Tulloss & Dav. T. Jenkins

When: 2013-07-13

Collection location: Amagansett, New York, USA [Click for map]

Who: Britt Bunyard (Fungi magazine) (bbunyard)

No specimen available

Mushrooms found on lawn by Michael Fischer. I believe that, to date, this is the farthest north that this species has been found. Formerly seen in Baltimore, MD, and in Midwest.

Proposed Names

31% (2)
Recognized by sight
27% (1)
Recognized by sight: Without microscopy, I hesitate to eliminate chlorinosma because the base of the stem is missing in the photographs.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Since thiersii sits pretty much on the surface of the ground,…
By: R. E. Tulloss (ret)
2013-09-27 20:35:32 CEST (+0200)

the broken stem seems like additional evidence of the stipe penetrating the ground…as in longipes. Just thought of that.


Unfortunately no specimen…
By: Britt Bunyard (Fungi magazine) (bbunyard)
2013-09-27 20:19:02 CEST (+0200)

and as you can see from the two photos it was not collected really well; cannot see base of stalk or rooting stalk or anything. Harumph.

On the tip of Long Island, A. longipes would be a very significant possibility.
By: R. E. Tulloss (ret)
2013-09-27 20:14:36 CEST (+0200)

The habitat is correct (pine oak-forest on sandy soil). And A. longipes is very common in this habitat. More over A. thiersii has a well-formed partial veil.

Very best,


By: Britt Bunyard (Fungi magazine) (bbunyard)
2013-07-22 20:52:38 CEST (+0200)

Have only the pics and description of mushroom and habitat.

Hello, Britt.
By: R. E. Tulloss (ret)
2013-07-22 18:36:28 CEST (+0200)

Did you have spores or some other material that could support the determination that this is A. thiersii?.

Very best,


Created: 2013-07-22 17:52:34 CEST (+0200)
Last modified: 2013-09-27 20:17:29 CEST (+0200)
Viewed: 45 times, last viewed: 2017-08-04 14:45:52 CEST (+0200)
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