Observation 32451: Amanita flavorubens (Berk. & Mont.) Sacc.
When: 2009-06-20
No herbarium specimen

Proposed Names

91% (2)
Eye3 Eyes3
Recognized by sight: Growing in an oak/pine forest with sandy soil. I’ve noted reddish bruising on the stem base of some specimens, and where the slugs have attacked the stems. The volva on these is yellow, leaving yellow warts on the cap, a yellow fringe on the annulus, sometimes a yellow ring around the top of the bulb, and usually yellow “crumbles” in the soil surrounding the base.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks, Dan.
By: Eric Smith (esmith)
2010-01-24 14:18:34 CST (-0500)

This area was created by the ancient “Lake Iroquois”. Giant sand dunes and plains growing with oak and white pine. It’s mixed with Pitch-pine/sphagnum bogs and hardwood/riprarian habitats. You’re looking at at one of the sand plains, where temps can get quite high on sunny summer days; to which I attribute the drastic color change.

Yes.
By: Eric Smith (esmith)
2010-01-24 14:10:41 CST (-0500)

I found the specimen as you see it in the pic. It was on a sand flat much like you can see in the first pic; exposed to heat, sun, wind and weather. I didn’t observe a color change. It had the same golden fringe on the annulus (you can see in the pic). This species is one of the first to appear, and was by far the most common Amanita in the woods that day. I’ve observed this color on other specimens that had dried out, but only a few times. Thanks.

Amanita amerirubescens
By: Dan Molter (shroomydan)
2010-01-24 14:03:55 CST (-0500)

I would call the brown mushroom in the bottom photo an ordinary blusher, not a yellow blusher.

Cool first photo BTW. Is that mushroom popping up from a plowed field?

A question
By: R. E. Tulloss (ret)
2010-01-24 13:51:47 CST (-0500)

Can you tell us a little about the picture of the specimen with the drying brown cap? Is that a species that you saw that was previously yellow before the field drying set in?

R.

Created: 2010-01-24 09:29:19 CST (-0500)
Last modified: 2010-01-24 09:29:19 CST (-0500)
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