Observation 105030: Amanita flavorubens (Berk. & Mont.) Sacc.

When: 2012-08-13

Collection location: Manasquan Reservoir Environmental Center, New Jersey, USA [Click for map]

Who: I. G. Safonov (IGSafonov)

No specimen available

Collected during the NJMA foray at the site. As can be seen, the material is in a fairly poor shape, so identification based on observable gross morphology is more of an educated guess.

Presence of a partial veil remnant eliminates A. section Vaginatae.

This specimen being A. flavoconia is unlikely because of the all-white stipe.

The tip of the stipe seems to terminate in a very small bulb covered in earth. The volva is not seen probably due to being very friable. Thus, section Validae is more likely that section Amanita ==> ergo, not A. frostiana.

The material is possibly in the hands of J.N. Burghard, who was supposed to test the spores for amyloid reaction.

Proposed Names

28% (1)
Recognized by sight: A slender stature; yellow cap, totally white stipe, pale yellow ring; friable volva and a small bulb
48% (2)
Eye3 Eyes3
Recognized by sight: As per Rod Tulloss’ comments below

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
You’re welcome
By: R. E. Tulloss (ret)
2012-08-13 18:24:51 MDT (-0600)


Thank you, Rod!
By: I. G. Safonov (IGSafonov)
2012-08-13 15:35:18 MDT (-0600)

I really appreciate your input. At least my logic took me to the right section (beginner’s luck)… :-)

I don’t know if they were growing on a lawn because I was not the collector. I don’t even know if these were collected together. They were not identified, and I rescued them from being tossed away at the end of the ID session.

It suggests to me that …
By: R. E. Tulloss (ret)
2012-08-13 15:04:56 MDT (-0600)

the two mushrooms could be A. flavorubens. Amanita flavorubens will sometimes appear above ground with the cap a dark reddish or purplish brown. It has been suggested that this might be due to bruising in pushing up through turf. I suppose the specimens from Manasquan were not growing in a lawn…were they?

The color of elongata is usually (emphasis) a pure yellow color.

Very best,


Reddish bruising
By: I. G. Safonov (IGSafonov)
2012-08-13 13:54:06 MDT (-0600)

Rod, if the bruising on the pileipellis is a real thing (not an artifact of digital photography), what would this be indicative of?

It looks like there might be reddish bruising in the center of the cap.
By: R. E. Tulloss (ret)
2012-08-13 13:39:11 MDT (-0600)



Created: 2012-08-13 13:02:17 MDT (-0600)
Last modified: 2012-08-13 18:23:23 MDT (-0600)
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