Observation 55575: Amanita Pers.

When: 2010-10-15

Collection location: King Co., Washington, USA [Click for map]

Who: caphillkid

No specimen available

I found this Amanita in Volunteer Park. Growing under oaks but spruce was nearby too. Not sure if this is Phalloides, hopefully someone can help. The cap is a bit tacky and there is no noticeable odor.

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Proposed Names

82% (1)
Recognized by sight

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By: R. E. Tulloss (ret)
2010-10-17 02:04:48 BST (+0100)

Thank you.


thanks again
By: caphillkid
2010-10-16 22:43:11 BST (+0100)

No I’m not aware of the past discussions. Relatively speaking I am still a noob, and when it comes to Amanitae I am definitely a noob. It is a genus I largely avoid. Thanks for your comments, I will attempt to dry the mushroom for later study.

You may not have seen other comments on “gemmata”
By: R. E. Tulloss (ret)
2010-10-16 22:10:25 BST (+0100)

You’re welcome, CHK.

I’d love to see the dried material — hopefully, some spores have matured as the fruiting body got older.

I’m not sure if you’re aware of the past discussions on the use of the name “gemmata” in North America. The summary: There seem to be several things called “gemmata” on the east coast and several things called “gemmata” on the west coast; and, as far as is known, none of them are the European A. gemmata. In the east we have a name that we don’t quite know how to use (we could figure it out with time) — A. russuloides. In the southwest, the name A. xylinivolva applies to at least one rather common species that used to be called “gemmata.” On the west coast, the names A. aprica and A. pantherinoides apply to “gemmatoid” taxa, but there may be two others (at least?) that are still just called “gemmata.”

Since the new Amanitaceae site is slowly starting to add some taxa that are distinctive and known under probably incorrect names (e.g., A. farinosa sensu Thiers, etc.), I hope we can eventually get to dealing with the “gemmatas”. The task is rather large, however.

Very best,


By: caphillkid
2010-10-16 21:10:25 BST (+0100)
Appreciate the comments Rod. It does match well with the “gemmata” descriptions I am reading as well as the pictures. I have saved the fresh mushroom just in case you might want to take a look.
What I have on pantherinoides is posted now.
By: R. E. Tulloss (ret)
2010-10-16 04:59:35 BST (+0100)

One thing puzzles me. I can find no mention whatever of the locality noted by Murrill as “Hayti” near Seattle. If anyone can shed light on what Murrill might have referred to as the locality at which he collected Venenarius (=Amanita) pantherinoides, I’d be very interested to know more about it.

Very best,


Amanita pantherinoides?
By: R. E. Tulloss (ret)
2010-10-16 03:54:12 BST (+0100)

The short marginal striations on a cap that is not yet fully expanded along with the bulbous stipe base and the membranous, limbate volva all suggest that this species would fall in the group of “gemmata-like” amanitas. With the yellowish cap color and the collection’s having been made in the PNW (specifically Washington), One possibility is Amanita pantherinoides (Murrill) Murrill. What is known about this species is not very much. Jenkins proposed that it was synonymous with another species named by Murrill from the PNW in the early 20th Century. Jenkins reported briefly on the types of both the names.

A brief description of the species can be found here:


Since this observation has been posted I took a look at that page and found there is information that could be posted on it that is not there. I’m going to work on that for awhile tonight. Hopefully, there will be two or three sets of spore data from different sources that can be compared on the cited page’s technical tab by tomorrow.

Very best,