Observation 160813: Amanita sect. Vaginatae sensu Zhu L. Yang

When: 2013-11-08

Collection location: near Trinidad, California, USA [Click for map]

Who: Noah Siegel (Noah)

Specimen available

Growing in a 50-60 year old solid Sitka Spruce grove.

Proposed Names

23% (3)
Recognized by sight: Tawney brown cad, white gills with marginate edges, very few partial gills, stipe with orangish chevrons, white, non-staining UV sack at stipe base.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
maybe so…
By: Debbie Viess (amanitarita)
2014-03-07 11:05:02 CST (-0500)

and then again, maybe not. the macro is not a match, tho, and I see no other evidence here for a good match. Surely you all agree that the possibility of several unnamed species of grisettes in CA is possible?

I do have a drawing of that grisette that looks just like this one, down to the exact color shown here (and complete saturation of color, i.e. no fading at the margin), from Salt Point….but god only knows where it is.

Organized I am not … but I have spent almost two decades looking hard at western amanitas, and I know what I have seen.

It all exists in time and space, though. Just a matter of finding the damn things.

I’m pretty sure Noah is right,
By: Ron Pastorino (Ronpast)
2014-03-07 00:03:49 CST (-0500)

these are probably all the same species with the cap color variations just that.
My photos are not great but mine all had the yellowish-orange fibrils, (“fibrillose to lacerate-fibrillose” as Jenkins says in describing A.crocea.)
The common habitat of old Sitka spruce in the same area ties them together.
Hopefully, Rod will be able to get some DNA results on them in the future.

nope, it was pre-camera.
By: Debbie Viess (amanitarita)
2014-03-06 23:36:30 CST (-0500)

but I remember them well, because they were so large and both that solid tawny color of a fulva (one with the ornamented stipe of a crocea). your mushroom and Ron’s do not look alike to my eye, other than obviously both being large colored grisettes.

did you do the micro to confirm your theory? is your a DNA match to Ron’s?

that would trump the macro.

By: Noah Siegel (Noah)
2014-03-06 23:28:53 CST (-0500)

Do you have a picture of yours?

This one is the same as Ron’s. It’s common in the spruce forest from northern Humboldt Co. into Curry Co. OR. I haven’t seen it outside of this area, even though I have hunted a lot of coastal spruce forest in OR and WA.

I suspect those are two different species.
By: Debbie Viess (amanitarita)
2014-03-06 23:13:19 CST (-0500)

your grisettes show a lot of yellow and white, and of course sp. OR01 is actually named after your OR collections. mine and noah’s here are more tawny, like a fulva, except much bigger and with an ornamented stipe.

that’s why I suggest that there are some cryptic species here.

I think it does fit the Amanita “sp-ORO1”
By: Ron Pastorino (Ronpast)
2014-03-06 19:41:13 CST (-0500)

that I believe I’ve been finding fairly often in the Brookings, Oregon area.
See MO #s 4307, 4308, 12328 & 146661.

By: Debbie Viess (amanitarita)
2014-03-06 17:45:36 CST (-0500)

and there is also a tawny capped grisette that doesn’t have chevrons. Our western grisettes need a lot of work, and some real publications.

But it is often quite difficult to tell them to species just from in hand.

I saw something similar
By: Christian (Christian Schwarz)
2014-03-06 17:32:00 CST (-0500)

in Henry Cowell Redwood SP in 2007, in Douglas-fir dominated mixed forest.

By: Debbie Viess (amanitarita)
2014-03-06 17:20:48 CST (-0500)

I have seen something very similar at Salt Point: large, orange cap, chevrons on stipe. It resembles the European crocea, but mine was not with Sitka Spruce.

More than one species here in this complex?

Oh, boy.
By: R. E. Tulloss (ret)
2014-03-06 17:17:12 CST (-0500)

This will be a cool one to look at and do mysterious stuff with…


Created: 2014-03-06 16:49:28 CST (-0500)
Last modified: 2016-12-27 13:59:07 CST (-0500)
Viewed: 62 times, last viewed: 2017-06-18 01:24:19 CDT (-0400)
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