Observation 60256: Amanita sect. Validae (Fr.) Singer
When: 2010-07-19
No herbarium specimen

Proposed Names

53% (3)
Recognized by sight: what if it were say Amanita brunnescens or submaculata and you just couldn’t see the bulb or volval remains? You can’t see striations on the edge of the pileus because of that frosting. I’m not familiar with what Amanitas grow in Wisconsin so it is just a thought. I cant reconcile Pluteus because of the partial veil.
ret
78% (2)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Another thought…
By: R. E. Tulloss (ret)
2010-12-06 09:13:42 CST (-0600)

This guy really makes me think that with a change of color it would look like something in the flavoconia group. I’m pretty sure that I have a numbered species with a brown virgate cap and yellow volval warts that I’ve collected on the grounds of the graduate college of Princeton U. …going to look this up… will be back…

Well, the cap shape is not a perfect match, but I think that it’s worth adding this to the list of possibilities:

http://www.amanitaceae.org/?Amanita+sp-10

Also, one could check the provisional species in Yves Lamoureux’s amanita book.

R.

Interesting suggestions
By: R. E. Tulloss (ret)
2010-12-06 09:09:38 CST (-0600)

Amanita submaculata has a very large partial veil. The outer half falls off the gill edges first and, hence, there is a sort fold created at that point, when the remainder of the annulus is released from the gill edges, the resulting “skirt” looks like a 19th Century ball gown with [space for] crinolines underneath it. We don’t have that sort of skirt in these pictures. Smell is useful, too. Amanita submaculata usually has a distinct odor that suggests fruit (particularly apples) to me…most of the time. I have found two collections with other odors (one like anise and one like new rubber automobile tires).

As Irene notes, the bulb is not quite right for A. brunnescens…although I have seen young brunnescens with a subconical cap like the one in Andrew’s pix.

Perhaps, if we want to pin this fellow down a bit more than has been done already, we could propose “Amanita sp. (sect. Validae).”

R.

Something around
By: Irene Andersson (irenea)
2010-12-06 04:37:24 CST (-0600)

Amanita brunnescens (but with a poorly developed bulb, or parts of it left in the ground) sounds like a good idea.

No spore print
By: Andrew Khitsun (Andrew)
2010-12-05 18:32:56 CST (-0600)

Unfortunately, I got interested in mushroom photography before I knew what I was doing. I didn’t collect specimen or spore prints. That’ll come next season. This is one of the reasons I’m putting many photos on Mushroomobserver – despite my two dozen mushroom books and almost as many websites, I can’t have a match since the clues are only visual.
Speaking of the latter, the photos I found so far show Psathyrella longistrata with striated or scaly stem, while this mushroom has very uniform smooth one.

maybe something in the
By: Noah Siegel (Noah)
2010-12-05 14:30:04 CST (-0600)
Very strange
By: Irene Andersson (irenea)
2010-12-05 12:48:37 CST (-0600)

I doubt Psathyrella candolleana too.
The cap structure and gills reminds of a Pluteus (but with a ring)
or an Amanita (but no volva
).

Would have been interesting to see micro characters. Did you check the spore colour?

Still in doubt
By: Andrew Khitsun (Andrew)
2010-12-05 10:28:27 CST (-0600)

According to M.Kuo and his pictures, the partial veil remnants are more like cortina. In my picture I see different type of veil, and whitening of the outer edge of cap is very prominent, but doesn’t look like cortina leftovers – I don’t know if that could be a key to ID.

Created: 2010-12-04 19:03:33 CST (-0600)
Last modified: 2012-06-06 15:38:12 CDT (-0500)
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