Observation 185954: Amanita pruittii A.H. Sm. ex Tulloss, J. Lindgr. & Arora

When: 2014-10-27

Collection location: Eugene, Lane Co., Oregon, USA [Click for map]

Who: Taylor (mycogypsy)

No specimen available

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thanks for the info
By: Dan Molter (shroomydan)
2014-10-30 09:47:20 PDT (-0700)

Thank you Debbie!

these non-MR amanitas
By: Debbie Viess (amanitarita)
2014-10-28 10:12:28 PDT (-0700)

are the most primitive of the amanitas in section Lepidella, which is itself the most basal of any of the amanita sections. They retain those primitive features of a saprobic lifestyle. The ability to form mycorrhizae is an evolved trait.

Here is a recent paper by Ben Wolfe on another saprobic amanita species found across the Mid West, Amanita thiersii. Ben recently obtained his doctorate at Harvard in the Pringle lab, and is now a professor at Tufts University, and has done extensive work within the Amanitaceae, including studying them at Tomales Bay State Park in California.


By: Dan Molter (shroomydan)
2014-10-28 08:28:26 PDT (-0700)

So strange to see an Amanita growing in an open field with no trees. Rod’s site mentions no trees were found nearby, but I wonder if this mushroom is a saprobe, or if it is in a mycorrhizal relation with the grass or some other herbaceous plant.

looks to be a good year for this unusual species.
By: Debbie Viess (amanitarita)
2014-10-28 07:59:35 PDT (-0700)

it has already been found in Santa Cruz, this past September, along a city street.

Where exactly was this sighting? Same place as the original finds: Fern Ridge Reservoir?

By: Christian (Christian Schwarz)
2014-10-27 14:46:28 PDT (-0700)

What a fruiting.

Created: 2014-10-27 14:44:21 PDT (-0700)
Last modified: 2014-10-28 17:26:24 PDT (-0700)
Viewed: 112 times, last viewed: 2017-10-27 03:23:29 PDT (-0700)
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