Observation 208981: Amanita sect. Amanita
When: 2015-07-05
0 Sequences

Hemlock area.

I thought these may be albocreata, but there is a partial veil present. I needed to dissect a cap to find the thin pv lying close to the gill edges. Maybe praecox? Cap color is creamy white except for the yellowish disc.


I thought the material on the stipe may have been volval. Partial veil on the buttons seems very thin/fragile.

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By: I. G. Safonov (IGSafonov)
2015-07-06 00:33:29 CDT (-0400)

Thank you for pointing the pv out at the late button stage. It took me a few minutes to figure out how the pv would look like in a button then the gill edges are essentially lined up with the stipe and pressed against it, and how to cut the mushroom properly to see this tissue.
Basically all ringed amanitas, even the ones that lose it early, must have a discernible pv prior to the gill edges separating from the stipe at the beginning of cap expansion.

By: Dave W (Dave W)
2015-07-05 23:47:16 CDT (-0400)

It took me 5-10 minutes of fiddling around with some buttons before I managed to see any string evidence of a pv. Last photo of dissected cap. I scraped away a small portion of pv so the contrast with the gills would be easier to see.

Partial veil
By: I. G. Safonov (IGSafonov)
2015-07-05 23:39:23 CDT (-0400)

Didn’t see one in the posted pix.

Presence of partial veil.
By: Dave W (Dave W)
2015-07-05 23:34:10 CDT (-0400)

Presence of partial veil rules out albocreata, which I thought these were at first. Praecox makes sense to me. Insubstantial pv.

Closeup on the third photo (largest cap) shows a tuberculate cap surface.

I’ll post a spore pic later.

Thank you both for the comments.
By: R. E. Tulloss (ret)
2015-07-05 23:30:33 CDT (-0400)

It sounds like a good idea to send the dried material. Thank you, David.

Very best,


Go with what you know…
By: I. G. Safonov (IGSafonov)
2015-07-05 23:24:45 CDT (-0400)

A hemlock habitat, exannulate stipe, and a “rolled sock” volva might point in the direction of A. praecox or A. albocreata.

By: Dave W (Dave W)
2015-07-05 23:13:20 CDT (-0400)

My understanding is the partial veil on multisquamosa is significantly more durable. The large one seen in this obs had no ring and the medium sized one had only a piece of material barely clinging to the stipe.

I’ll preserve this and put it into the next package.

I’ve lately been seeing lots of similar material, both in the field and here on MO.

I’ve seen material of this coloring that I thought should be in…
By: R. E. Tulloss (ret)
2015-07-05 22:52:53 CDT (-0400)

A. multisquamosa.

Very best,


Created: 2015-07-05 21:40:13 CDT (-0400)
Last modified: 2015-07-07 20:42:19 CDT (-0400)
Viewed: 61 times, last viewed: 2017-06-20 09:31:55 CDT (-0400)
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