Observation 210526: Amanita Pers. sect. Amanita
When: 2015-07-17
No herbarium specimen

Notes: Growing on the ground in a primarily deciduous woodland. Very large and very heavy.

Proposed Names

56% (1)
Recognized by sight: Based on the volval patches on the pileus, the bulbous base with remnants of volva on it (2nd photo), and white gills.
56% (1)
Eyes3
Recognized by sight: Short gills are truncate and stipe base with a large bulb.
18% (2)
Used references: Arora, Mushrooms Demystified. Bulbous base, collar-like volva, annulus present.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Amanita Studies website…
By: Dave W (Dave W)
2015-07-19 06:12:12 PDT (-0700)

mentions that muscaria var. guessowii sometimes has a stipe that “flares at the top.” With this specimen the flaring is apparently exaggerated because the mushroom is old and blown-out. So maybe this is an old faded muscaria var. guessowii. Marginal cap striations seem long for this species, though. But once again… difficult to judge an old specimen like this.

Annulus
By: Daniel B. Wheeler (Tuberale)
2015-07-19 05:51:42 PDT (-0700)

present in 3rd photo, appressed to stipe (near left-hand thumb nail).

Was hopeful someone would mention the stipe-pileus attachment which is rather striking.

I don’t see an annulus.
By: Dave W (Dave W)
2015-07-18 15:26:01 PDT (-0700)

Or else I may have at least mentioned muscaria or velatipes.

Like ret says, characters are too old to get a good read on species.

This species is many times to big for flavoconia.
By: R. E. Tulloss (ret)
2015-07-18 15:23:01 PDT (-0700)

The yellow might be due to decay and not be the color of the volva. The specimen is very old.

R

I think so, T.
By: Daniel B. Wheeler (Tuberale)
2015-07-18 14:42:37 PDT (-0700)

Something near Amanita aspera. But not A. aspera I think, which should have a yellow partial veil. I don’t see any veil here. (The third photo shows a dried veil on the stipe.) The stature is quite large (or at least looks that way to me). Another interesting feature is the stipe near the cap: it enlarges just before joining the cap. I don’t think that is a feature of A. aspera.

I hope ret. will be able to comment on this robust Amanita.

Species?
By: T. Nelson
2015-07-18 11:33:06 PDT (-0700)

Is there any possibility of a species designation?

Created: 2015-07-18 09:42:32 PDT (-0700)
Last modified: 2015-07-18 15:21:14 PDT (-0700)
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