Observation 68450: Amanita pantherina sensu auct. amer.

Note the tight vulva, long slender stem, veil, Dark brown cap with delicate white patches(that are easily removed). White spore print(as with other Amanita spp.)

Fruiting beneath Thuja plicata in mixed conifer canopy.

Temp: upper 50’s rainy(mixed sun breaks)

A. pantherina, A. gemmata, and hybrids of both species have been abundant this year near the evergreen state college along with A. aprica.

A. gemmata has a much thicker base and fuller vulva and is far lighter(usually bright yellow) in color on the cap(even when old) Specimens with characteristics of both Amanita pantherina and Amanita gemmata are found here in the PNW in the spring quite often, therefore experimenting with the sometimes listed “edible” jonquil Amanita is not advised.

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You’re welcome
By: R. E. Tulloss (ret)
2011-06-02 06:47:42 PDT (-0700)

…and I’m glad it proved useful. I’m sure you noticed that Murrill named several species of pantherinoid taxa from the PNW of the U.S. These names are not generally in field guides, and the species behind the names are not always well-understood.

And…there is always the possibility that there are taxa out there that have not been named as yet. In the U.S., my estimate is that nearly half of the amanitas (a much larger fraction in section Vaginatae) are undescribed.

I was in a hurry (and not on my own computer) when I responded yesterday. I forgot a few points with regard to information on www.amanitaceae.org (WAO).

The classification of taxa into subsection Pantherinae is provisional (based largely on the work of the site’s editors. There may be taxa listed on the site that should have been placed in subsect. Pantherinae, but we were too ignorant about them to place them there.

There is a tentative separation of gemmatoid taxa on the site in subsection Gemmatae. Even the sectional name is provisional in this case. This work is also based on the research of the site’s editors, but benefits especially from my recent interactions with the authors of two new species that we believe fall into the gemmatoid group - Nelson Menolli, Jr. (the lead author of A. viscidolutea from Brazil) and Felipe Wartchow (the lead author of A. lippiae, also a Brazilian species).

Very best,

Rod Tulloss

Hey thanks Rod!
By: Drew Henderson (Hendre17)
2011-06-01 10:25:25 PDT (-0700)

I have been studying the differences between our PNW spring Amanita spp. for the last two seasons and have become pretty confused… The link you provided is very helpful indeed- thanks again :)

Nice pix
By: R. E. Tulloss (ret)
2011-06-01 07:05:06 PDT (-0700)

Just a note that “gemmata_-_pantherina” hybrids are probably (very probably) distinct species or color variants of distinct species. The gemmata group and the pantherina both contain multiple species and are not closely related to each other.

A list of the world taxa currently believed to be in the panterina-group can be found here (with links to the species descriptions):


Very best,

Rod Tulloss

Created: 2011-05-31 16:19:09 PDT (-0700)
Last modified: 2011-06-02 04:13:10 PDT (-0700)
Viewed: 284 times, last viewed: 2018-12-24 16:25:33 PST (-0800)
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