Observation 111046: Amanita brunnescens G.F. Atk.

Notes:
N. 39.3526 W. -87.7077

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Proposed Names

57% (1)
Recognized by sight
-30% (2)
Recognized by sight
78% (2)
Used references: See comments
ret
82% (1)
Based on chemical features: nrITS 100% match

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= Observer’s choice
= Current consensus

Comments

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We have received DNA data from the voucher for this observation.
By: R. E. Tulloss (ret)
2019-01-18 04:29:25 AEDT (+1100)

The nrITS sequence is well formed and is a 100% match for Amanita brunnescens.

Thanks again for the material

This has been Rachel’s first opportunity to post a result on MO

Very best,
Rod

Material received.
By: R. E. Tulloss (ret)
2012-09-29 07:36:48 AEST (+1000)

Thank you, Patrick.

Very best,

Rod

It’s the cap color that makes me hesitate to go for porphyria.
By: R. E. Tulloss (ret)
2012-09-25 01:41:42 AEST (+1000)

Dave, you’re right about the gray partial veil in porphyria sometimes becoming more distinct in age; however, there is gray on the margin (at least) of the ring from early on.

This specimen makes me think a little of a small brunnescens or a light-colored specimen of A. solaniolens.

R

First four pics remind me of…
By: Dave W (Dave W)
2012-09-25 01:14:25 AEST (+1000)

A. porphyria, except for the white stipe, and white ring. Not sure about whether the gray tones develop as porphyria matures.

I will split those out
By: Patrick Harvey (pg_harvey)
2012-09-25 01:13:12 AEST (+1000)

I will split those out into a second observation, and do so with the
samples also.

I hadn’t seen the second half of the pictures. I agree with David’s observation.
By: R. E. Tulloss (ret)
2012-09-25 01:06:21 AEST (+1000)

The bottom four pictures might show a pink-spored taxon. or a pink-gilled species of Amanita, which exist in sections Vaginatae (not a candidate here because of the membranous partial veil), Caesareae, and Phalloideae.

Whatever grouping is appropriate for the entity in the second four pix, it is not sect. Validae, which I still think is appropriate for the first four pix.

Very best,

Rod

The two photos of stipe base…
By: Dave W (Dave W)
2012-09-24 23:21:28 AEST (+1000)

appear to show different specimens. The one photo shows a splitting bulb. The other photo appears to show a volva with free limb.

It looks like there is a true bulb at the stipe base.
By: R. E. Tulloss (ret)
2012-09-24 14:12:45 AEST (+1000)

Possibly it is splitting as in A. brunnescens. This suggests the species could be in Amanita sect. Validae.

R

Created: 2012-09-24 13:05:54 AEST (+1000)
Last modified: 2019-02-02 10:44:09 AEDT (+1100)
Viewed: 132 times, last viewed: 2019-03-22 09:50:45 AEDT (+1100)
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