Observation 13905: Amanita gemmata var. exannulata (J.E. Lange) anon. ined.

When: 2008-11-08

Collection location: Salt Point State Park, Sonoma Co., California, USA [Click for map]

Who: Debbie Viess (amanitarita)

Specimen available

note yellowish cap, odd flaring, membranous volva.

Species Lists


1. exannulata cap
2. exannulata volva
3. exannulata and breckonii button
1. exannulata cap
2. exannulata volva
3. exannulata and breckonii button
1. exannulata cap
2. exannulata volva
3. exannulata and breckonii button

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
A. junquillea var. exannulata
By: Erlon (Herbert Baker)
2015-03-14 19:20:24 EDT (-0400)

is invalid, and from Denmark. No way this is the same species.

gemmata var. exannulata is ..
By: Debbie Viess (amanitarita)
2015-03-14 19:01:50 EDT (-0400)

a synonym for A. junquillea var. exannulata, published in 1935.
so yes, it is published. but no, it is not the exact sp. that we have here, probably.

again, the work has NOT been done, but that is a name that we have used for our western species that lacks a partial veil and has a UV that climbs up over the bulb (no neat rim), and a yellowish cap. pseudobreckonii is a “name come lately.” use it if you want. I have used both, but I prefer exannulata.


By: Debbie Viess (amanitarita)
2015-03-14 18:49:06 EDT (-0400)

isn’t published, either. I prefer the exannulata name.

once something gets officially published for this species, why, I’ll use that name. we’re not there yet.

amanita alone is not good enough. we know this species, it just doesn’t have a good published name, yet.

By: Erlon (Herbert Baker)
2015-03-14 15:54:24 EDT (-0400)

It appears the type for your selected varietal name is also unpublished and from Denmark.

check Rod’s site …
By: Debbie Viess (amanitarita)
2015-03-14 15:22:31 EDT (-0400)

he was the one to first propose this name to me, many many moons ago.

Hi Debbie
By: Erlon (Herbert Baker)
2015-03-14 15:14:22 EDT (-0400)

Perhaps you can show me where Amanita gemmata var. exannulata was published? Thank you.

pseudobreckonii is not a real published name.
By: Debbie Viess (amanitarita)
2015-03-14 15:00:28 EDT (-0400)

the term “pseudobreckonii” was coined because this clearly wasn’t breckonii.

the original name for this sp. was gemmata var. exannulata.

it was Darvin who first started convincing me to call these breckonii, which I only did so reluctantly.

we all agree these are not the true breckonii, which no one has really ever seen that is still alive.
dessicata exists, but that doesn’t tell us what the fresh fb looked like.

when this western species gets fully described, DNA analyzed and published, then we can run around and change all of the names to a new real name. until then, it’s just what you prefer to call it.

Ok thanks
By: Erlon (Herbert Baker)
2009-12-29 11:04:08 EST (-0500)

I didn’t realize you had two different species here, what are the microscopic differences between this species and A. breckonii.

we really haven’t resolved…
By: Debbie Viess (amanitarita)
2009-12-29 10:25:15 EST (-0500)

just what these exannulate “gemmata” types with the flaring volvas really are.
at this point in time I feel most comfortable calling them exannulata, but this is probably just another western amanita in need of a new name.

Dimi did show that these are most likely NOT breckonii, by comparing some of my collections with the breckonii type specimens at SFSU herbariuum.

Created: 2008-11-09 23:02:26 EST (-0500)
Last modified: 2015-03-14 23:54:22 EDT (-0400)
Viewed: 180 times, last viewed: 2018-07-19 18:35:25 EDT (-0400)
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