Observation 100190: Amanita flavorubens (Berk. & Mont.) Sacc.
When: 2012-07-13
Herbarium specimen reported

Notes: Spores amyloid.

Growing in deep damp moss near a creek, mature planted spruce trees nearby.

The bright yellow stain on the cap appears to be the result of a plant interacting with the mushroom. Note the long thin yellow stain across the cap. This was where a thin piece of plant had adhered to the cap.

I dug deeply to find the stipe base. But I found no sign of a volva or a bulb. Lower stipe appears to show some reddish stain. Ring is yellow underneath.

Gills have yellowish hue and are sinuate with thin decurrent threads.

Proposed Names

58% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Thanks Rod.
By: Dave W (Dave W)
2013-05-08 00:46:00 CDT (-0400)

The area where this was collected had a lot of flavorubens last year.

Thank you, David.
By: R. E. Tulloss (ret)
2013-05-07 15:51:19 CDT (-0400)

The yellow on the cap is probably where a blade of grass (the stripe) or something else prevented the yellow pigment from being washed out in the rain. This happens with Amanita flavorubens. The reddish staining at the base of the broken stem is also something that (of course) is seen in flavorubens. The spores in your photograph also support the possibility of flavorubens. We accessioned the specimen under that name.


Created: 2012-07-14 02:51:18 CDT (-0400)
Last modified: 2015-09-19 09:29:35 CDT (-0400)
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