Observation 190578: Amanita sect. Phalloideae (Fr.) Singer

When: 2014-11-29

Collection location: East Bay Hills, Richmond, California, USA [Click for map]

Who: James Baker (cepecity)

No specimen available

These two white Amanitas were found about 40 yards apart and each was surrounded by both normal colored A. phalloides and pale but lightly greenish colored ones.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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next time you see it …
By: Debbie Viess (amanitarita)
2014-11-30 15:30:46 CST (-0500)

it would be interesting to confirm with KOH.

there is a broad range of colors possible, and the original colors fade with sun and rain and time.
if you are going back to the same patch tho, it may well be a genetic variant, unique to this individual.

we might also have some cryptic species in section Phalloides, so it’s always worthwhile to challenge our assumptions!

Actually saw a color intensity range in surrounding A. phalloides
By: James Baker (cepecity)
2014-11-30 15:22:54 CST (-0500)

Unfortunately, I didn’t save the specimens. I have updated my comment to include the other factor in my ID of there actually being a full range of color intensity in surrounding A. phalloides from these very pale ones to normal olive green-brownish ones. Also, as Christian Schwarz says in his recent Amanita sect. Phalloideae post from the Santa Cruz area, these white mushrooms were of a slightly smaller stature than the normal colored A. phalloides, and I have seen this same color and size variation range in my previous year’s sightings.

guilt by association? ;)
By: Debbie Viess (amanitarita)
2014-11-30 14:16:39 CST (-0500)

since we are seeing so many spring fungi right now, why not check for sure? a drop of KOH on the cap will tell the tale: white phalloides or early ocreata.

bright yellow in KOH for ocreata.

white phalloides are rare, but do occur. all of the colored amanitas occasionally produce white forms, just like we animals do! :)

Created: 2014-11-30 02:58:25 CST (-0500)
Last modified: 2014-11-30 14:53:14 CST (-0500)
Viewed: 58 times, last viewed: 2017-06-19 11:26:02 CDT (-0400)
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