Observation 5264: Amanita sponsus Tulloss et al. nom. prov.
When: 2007-11-27
Herbarium specimen reported

Notes: The spores were elliptical and amyloid. There were six specimens growing near the trail, semi-buried, with no oak or other large tree in the immediate vicinity. Amanita novinupta would be close but there was no indication of the usual “blushing” and I’ve never seen it this early. Any discoloration on the warts or cracks seemed to come from dirt as they were growing fairly deeply in the soil and close to the trail. A. magniverrucata is a possibility I suppose, although they lacked any real signs of an appendiculate margin.
Arora speaks of an unnamed “false blusher” whose
“bulb is often brownish-stained”. However, I didn’t see any live oak in the area.

Proposed Names

54% (1)
Recognized by sight: Ron’s indicate the species is not blushing.
Based on chemical features: Dr. Hughes’ folks were able to extract nrITS that is quite distinct from anything in GenBank. In comparison to the local sequence database in Roosevelt, this is a species of sect. Validae and not one for which a name or temporary code has been proposed. Hence, sp-C20. Page being developoed here:
93% (3)
Based on chemical features: Amanita sponsus is a new name replacing the code name A. sp-C20.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Debbie Viess (amanitarita)
2016-01-11 11:37:19 CST (-0600)

could we possibly get a bit more input on the names of these western species of amanitas?

yes, it doesn’t blush and yes, we have been noticing that these were different from novinupta for quite a while, obvious in hand but not always in a photo!

bless your heart Rod, but this is all a bit too cutesy for me. I just call novinupta the Western Blusher (I understand your latin derivation), and I am pretty sure we can come up with a more flowing name for this interesting local member of the Validae.

BTW, what’s your publication date, and who’s on that paper?

Noah and Christian suggested to me that this species might be the unblushing…
By: R. E. Tulloss (ret)
2016-01-08 12:02:12 CST (-0600)

“groom” to __novinupta__’s “new bride.” “Sponsus” is “groom.” It has a masculine ending because it is a noun in apposition. Putting a feminine ending on the noun changes the meaning to “bride.” That was not what was intended.

Very best,


likely to be the same as the browning Validae …
By: Debbie Viess (amanitarita)
2015-06-17 11:36:22 CDT (-0500)

that has been popping up on a regular basis at MSSF (mis-IDed as an Amanita cokeri, of all things!) and FFSC Fairs, as well as collected by Bill Yule in Woodside just prior to the NAMA foray in Scotts Valley.

More collections of this species being sent to Rod for further DNA analysis.

Lepidella/Validae Love Child is what I have been calling it, since it seemed to have features from both groups.

Thank you, Ron.
By: R. E. Tulloss (ret)
2014-11-20 07:27:05 CST (-0600)

This collection has been sitting in my “puzzle” pile for seven years.

Last May, the folks in Dr. Hughes’ lab got two slightly different “proposed barcode” sequences from a single sample (haplotypes). Since then, I learned how to set up a local database of sequences. Today, using the local database, I found a probable home for this species in the Validae.

The species is quite distinct from anything that I know of that is named. It is different from A. novinupta genetically and morphologically.

As noted above, a page will be set up on WAO.

Thanks, again, Ron for sharing the material from this observation.

Very best,


By: Debbie Viess (amanitarita)
2008-08-26 10:44:40 CDT (-0500)

…this appears to me to be a spot-on example of novinupta…stature a match, veil material a match and spores a match. must’ve just been a ways from its host oak…and we are seeing our CA winter and spring mushrooms earlier and earlier…

any confirmation or denial from the examination of the dessicata, Rod?

To record interactions regarding this entity…
By: R. E. Tulloss (ret)
2007-12-02 15:58:06 CST (-0600)

On the BAM email reflector, Ron, Debbie Viess, Dimitar Bojanchev, and RET have discussed several collections that are apparently the same as this species. If it is assignable to sect. Lepidella, the present consensus is that it is new to the list for the Pacific Coastal states of the US. The possibility has been raised that might also belong in sect. Validae. Dried material from Ron and Dimitar are being sent to RET for examination.

Created: 2007-11-29 22:47:19 CST (-0600)
Last modified: 2016-01-12 23:07:25 CST (-0600)
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