Growing in open mossy area under large oak. Olive tones in cap.


Proposed Names

82% (1)
Based on chemical features: nrITS locus provides a very good match to previous sequences of longicuneus (up to 100% match)

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Been awhile…
By: Dave W (Dave W)
2019-03-07 00:23:01 CST (-0500)

since I collected/photographed this. There are two photos here showing what appears to be a marginal area (>50%) exhibiting much paler color than is seen on the disc. Perhaps ambient lighting and/or the predisposition of my camera played a role.

I’ll explore the particular location/habitat again this coming summer.

Still puzzling on this one for which we only got nrITS.
By: R. E. Tulloss (ret)
2019-03-06 19:46:50 CST (-0500)

Any thoughts about the cap coloration?


Sorry for the gap in the information. I mis-labeled the data and just discovered …
By: R. E. Tulloss (ret)
2019-02-25 15:23:26 CST (-0500)

… the error. This material is definitely in sect. Vaginatae. In fact, it is very close to Amanita longicuneus on which I have been working for quite a few days. The pale zone on the cap (that is not so evident in the button, but seems to be there in a more distant shot of an adult) is kind of a surprise for longicuneus. Can you shed any light on the pigmentation? The somewhat olive tint is also a surprise.

Very best,


I had thought that that might be the case. :)
By: R. E. Tulloss (ret)
2019-01-07 10:44:10 CST (-0500)

This is another cool one.

Very best,


Based upon my description of the habitat…
By: Dave W (Dave W)
2019-01-07 01:01:45 CST (-0500)

and my own record for location (edited the location for this observation) I believe I know the exact spot where these were found.

It appears this is something new.
By: R. E. Tulloss (ret)
2019-01-07 00:29:05 CST (-0500)

I’m taking a fast pass through nearly 150 raw data files that came in in the last few days from Linas.

Very best,


I’m looking forward to the news from the sequencing.
By: R. E. Tulloss (ret)
2018-05-18 23:22:28 CDT (-0400)

Thanks again, David.

Very best,


I just reviewed…
By: Dave W (Dave W)
2018-05-18 17:07:45 CDT (-0400)
a couple of provisional species with globose spores found locally. A. cyclops looks somewhat similar, but with deeper marginal striations, a more prominently umbonate disc, and color scheme tending more toward brown than olive. Nothing else comes immediately to mind.
Sampled for DNA sequencing today.
By: R. E. Tulloss (ret)
2018-05-18 15:16:16 CDT (-0400)

Thanks as always, David.

Want to make a guess?

Very best,

Rod Tulloss

Created: 2011-08-19 10:36:48 CDT (-0400)
Last modified: 2019-05-09 09:53:01 CDT (-0400)
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