Observation 27758: Amanita sect. Amanita
When: 2009-11-02
No herbarium specimen
0 Sequences

Found under a pine tree surrounded by several other kinds of trees, eucalyptus, acacia.

[admin – Sat Aug 14 02:05:40 +0000 2010]: Changed location name from ‘Sausalito, CA’ to ‘Sausalito, California, USA

Proposed Names

-18% (3)
Used references: Internet database, books
Based on microscopic features: spore print white
56% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Rod, when?
By: Dimitar Bojantchev (dimitar)
2009-11-06 23:41:58 CST (-0500)

>…A. breckonii and a European species A. heterochroma can be segregated from the muscarioid group because the both lack a layer of inflated (mostly subglobose to globose) cells immediately below their basidia.

Rod, when are you going to publish a little “Tulloss’ Amanita Gems” — containing exactly that kind of “differentiating” notes. They are critical, but hard to find in the gobbles of obligatory description text.


Probably, the best answer is…
By: R. E. Tulloss (ret)
2009-11-05 09:55:34 CST (-0500)

a question or two.

Do you still have that spore print?

[If the answer is yes, then you could fold it once with spores on the inside of the folded paper. Then you could mail it wo me at

Dr. R. E. Tulloss
P. O. Box 57
Roosevelt, NJ 08555-0057

and I could measure the spores to see if they are distinct enough to suggest a possible diagnosis. The bad luck will be if their size and shape through them into a large group…but then, at least, I can give you some likely alternatives to consider/research.]

Was there a skirt on the stem?

[ I think the ring that we can see in the photographs is part of the volva and not the skirt that is often present in the group of taxa we’re discussing. ]

If it turns out that you have a muscarioid color variant, you may have a yellow variant of the Eurasian _muscaria__A. (known from the PNW). If it is a yellow variant of the red muscarioid species of the western contiguous 48 states (A. muscaria subsp. flavivolvata =A. amerimuscaria])and southward, then it would be very interesting because that yellow variant is usually seen in Canada and in the eastern “half” of the U.S.

You might also want to look at this webpage:


for A. breckonii.

Very best,


If not a Pantherina, then what?
By: fungusamongus
2009-11-05 02:19:34 CST (-0500)

These are rather diminutive and not overly plump, but they have all the hallmarks of pantherinas, from what I can tell. There’s a ring, there’s a volva, there are scales on the cap – not like Gemmata, but more like Muscaria. In fact they look just like some of the little Muscaria’s found around here if it weren’t for the color — gold to cream to tan. (Last winter I sprayed some Muscaria spore under the particular pine tree where I found these growing actually, and now I wonder if a red amanita muscaria can have spores which can make an ‘alba’ version of itself? Just a few feet away I found the first (red) Muscaria of the season too. Spore print white, whiter than the white paper I made it on. I also live in an area where many pines which Pantherina’s favor were planted (Bay Area), and the southern tip of the Pacific Northwest, noted for this species.
I defer to my mycological elders, but if this is not a Pantherina, what is it? Could it be a Muscaria var. Alba? Thanks for your imput!

I don’t think that this is pantherina.
By: R. E. Tulloss (ret)
2009-11-04 13:55:36 CST (-0500)

Was there a membranous skirt on the stem? The ring around the stem seems to have been torn from the volva and dragged up the stem…possibly, it represents much of the original limbus internus (internal limb) — the part of the volva that is originally between the stipe and the gills (or the under side of the annulus, if there is one).

Too bad there’s no herbarium specimen. I would hesitate to place the species to a low-level group (muscarioid, gemmatoid, breckonioid, pantherinoid, ?).

By the way, A. breckonii and a European species A. heterochroma can be segregated from the muscarioid group because the both lack a layer of inflated (mostly subglobose to globose) cells immediately below their basidia.

Very best,


Created: 2009-11-04 13:18:29 CST (-0500)
Last modified: 2015-03-14 16:55:34 CDT (-0400)
Viewed: 101 times, last viewed: 2017-06-06 05:55:01 CDT (-0400)
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