Observation 95998: Amanita Pers.
When: 2012-06-01
No herbarium specimen

Proposed Names

ret
75% (2)
Eye3 Eyes3
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
I wish I could see the bulb that you saw.
By: R. E. Tulloss (ret)
2012-06-01 19:46:32 COT (-0500)

The marginal striations in the photographs are not what is normally called “faint” in the Amanita literature; and they are uniform in the two fruiting bodies, which indicates to me that marginal striations of the given length is probably a “normal” condition of the species that you depict when it reaches full expansion of the cap.

Amanita brunnescens is very familiar to me from collecting in eastern North America; and I have never seen marginal striations as are shown in your photograph.

The uniformity of the color on the upright stem suggests that it is a surface coloration rather than bruising. The color of the other stem is probably washed out in the photograph.

I don’t see any ring on the stems. Amanita brunnescens has a ring.

The lack of a ring would suggest that the species is not in Amanita section Caesareae. This leaves two possibilities as to section: section Amanita and section Vaginatae.

Possibly what you have is one of the species of section Vaginatae that has a very crumbly volva.

Unfortunately, “the shoemaker’s children wear no shoes” as the saying goes; and A. brunnescens, despite being very common, is a species for which I can be embarrassed to say that we have a rather weak taxon page on the WAO website. We have some pictures, however; and these may be of some use to you:

http://www.amanitaceae.org?Amanita+brunnescens

For an example of a species in the crumbly-volva group within section Vaginatae, you could look at this rather common species of eastern North America:

http://www.amanitaceae.org?Amanita+borealisorora

Unfortunately, these suggestions are about as far as I can go without a picture of the bulb or the dried specimen in hand.

Very best,

Rod

G.F. Atk
By: Leighton Bankes (paducahovoids)
2012-06-01 18:21:22 COT (-0500)

has faintly striate margin in the description…it had a brown staining stem and a cleft bulb. What do you suggest?

One reason that this species can’t be A. brunnescens is…
By: R. E. Tulloss (ret)
2012-06-01 15:04:45 COT (-0500)

that it has radial striations (grooves) on the margin of the cap. Because of these striations, there is a pretty good chance that your material will have inamyloid spores and (hence) belong to Amanita subgenus Amanita. A photograph of the base of the stem would help to go farther with an ID.

R

Created: 2012-06-01 09:23:17 COT (-0500)
Last modified: 2012-08-01 20:44:03 COT (-0500)
Viewed: 84 times, last viewed: 2016-10-25 12:12:08 COT (-0500)
Show Log