Observation 109601: Amanita cruetilemurum Tulloss & Rodr. Cayc. nom. prov.
When: 2012-09-13
32.5476° -108.4251° 6323m
Herbarium specimen reported
0 Sequences

under oak, sandy loam soil, in oak-juniper woodland. RMC 1399 and 1400 found interspersed under the same oaks. Two red staining Amanitas, kinda neat.

Proposed Names

60% (2)
Recognized by sight
82% (1)
Recognized by sight: This provisional name replaces the temporary code name “sp-NM10.”

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
so …
By: Debbie Viess (amanitarita)
2015-01-23 15:29:14 CST (-0500)

I see no mention of microscopy comparisons between the PNW and the SW collections. Was that done, or are you just putting your faith in the DNA? Considering your extensive microscopy expertise, I find that difficult to believe as well!

Bloody ghost. I hope this one at least has heaping helpings of those hemolytic toxins, to merit such a gruesome name!

What we see.
By: R. E. Tulloss (ret)
2015-01-23 14:57:13 CST (-0500)

The material under this name was first described from New Mexico. Older Arizona collections may prove to be the same species; and their data will be merged into the species description if that is the case.

The known range of “cruetilemurum” extends from Humboldt County, California, under Sitka Spruce to (at over one mile higher elevation) the Oak-Juniper belt in hotter-dryer New Mexico. Robert says that the New Mexican collections are very similar to the white rubescent taxon that I’ve collected in the Chiricahua mountains in Arizona. If the latter is true, then the species might also be found in the western Sierra Madre in Mexico. We have no genetic confirmation from specimens originating in Mexico or Arizona at this time. We will pursue it.

We are utlizing two genes nrITS and nrLSU. Some populations of this species show rather extensive hybridization of the nrITS gene (multiple variants/clones found, but probably not all); some have very little evidence of hybrization (maybe two variants of the nrITS gene); and some have the nrITS apparently completely homogenized (no conflicts or ambiguities show up in sequencing nrITS).

There is minimal variation in the nrLSU gene—the Humboldt County material has a sequence differing in two of 879 characters in the overlapping part of the sequences — a genetic distance of 0.23%, which is rather small and within the margin of error for the PCR process of at least one of the two labs involved. Given our data, the sequences support the hypothesis that the three collections involved in our nrLSU-based comparison could be assigned to a single species.

The name is intended to be one with an English equivalent that is memorable for the user community. The same idea behind the name novinupta. This time the theme is not a wedding, but a horror film.

“cruetus” = bloodstained

“lemurum” = ghost (NOT a venerated one such as an ancestor or an element of religion)

Hence, the “Bloodstained Ghost Amanita.”


I find it a bit hard to believe …
By: Debbie Viess (amanitarita)
2015-01-23 13:17:52 CST (-0500)

that these NM/Mexican collections under oak are the same species as the PNW collections under conifers.

Are we sure that our DNA is giving us the right information? Was there an across the board micro match, too?

Quite a mouthful of a latin name. What does it mean? First described from Mexican collections, I take it?

Thanks again, Bob.
By: R. E. Tulloss (ret)
2013-08-11 15:20:09 CDT (-0400)

We decided to sample several of the specimens from the collection you sent to Roosevelt and were able to obtain sequences that will be very helpful in the eventual studies of the rubescent amanitas.

Very best,


By: R. E. Tulloss (ret)
2013-06-09 20:12:19 CDT (-0400)

Thanks for posting the sequence.


The sequence
By: Dimitar Bojantchev (dimitar)
2013-06-09 17:25:52 CDT (-0400)

Here is it in case you want to do some phylogeny and compare to the other species in the group.


Nice when the DNA
By: Debbie Viess (amanitarita)
2013-06-09 10:26:24 CDT (-0400)

confirms the evidence of our eyes. Did any of us doubt that this one was a new species?

AS always, great find, Bob.

The sequence…
By: Dimitar Bojantchev (dimitar)
2013-06-08 18:17:36 CDT (-0400)

Finally got the seqeunce of this material. It is indeed a new genotype with a closest relative this one from the “tropical cloud forest” of Mexico (Guerrero).


The seqeunces are close, but not the same. In general getting good sequences in this group is tough as there are many doublepeaks and a couple of repeats may be needed.

This species is not the same as any of the California material in the same group.

Bob, the material has arrived in Roosevelt.
By: R. E. Tulloss (ret)
2012-09-28 13:58:58 CDT (-0400)

Thanks for sending it.


Thank you Rod.
By: Dimitar Bojantchev (dimitar)
2012-09-15 23:37:27 CDT (-0400)

Thank you Rod. I need half a fruitbody.

Congratulations on getting your herbarium sequenced. It is one of the most exhilarating steps of discovery. I am sure all kinds of interesting things will pop out of there.


By: R. E. Tulloss (ret)
2012-09-15 23:23:13 CDT (-0400)

I’ll be glad to forward part of the material to Dimitar immediately upon receipt from you.


This is an interesting collection.
By: Dimitar Bojantchev (dimitar)
2012-09-15 23:04:03 CDT (-0400)

If not too late, I would like to request a fruitbody from that collection as we have a bunch of molecular data from California Amanita novinupta allies and it would be very interesting to see how this one ties in. Will have it sequenced within a month or so.


At this point, I am in the process of getting all the Amanita taxa in my herbarium…
By: R. E. Tulloss (ret)
2012-09-15 01:57:42 CDT (-0400)

sequenced working with multiple partner labs including (due to the kindness of Dr. Bruns, Nhu Nguyen and others) UCB.

In relation to AZ and NM material, we have initiated a joint project with Dr. Jozsef Geml (Leiden) to sequence all our Amanita and Limacella material from AZ, NM, and Mexico in support of his interest in Mesoamerican amanitas.

At the same time we hope to obtain sequences for as many of the world’s Limacella taxa as possible working with Dr. Geml’s lab and, also, as part of the Amanita and Limacella type-specimen sequencing project in collaboration with Dr. Anne Pringle’s laboratory at Harvard.

Sequences resulting from these and other projects will be posted to GenBank and made accessible via links from www.amanitaceae.org (WAO) as quickly as it is possible for us to do so.

With regard to North American species of Amanitaceae, the large effort (including the collaborations mentioned above) will support the developing North American Mycoflora project for which WAO is serving as the only extent model of on-line monographic treatment.


if you have extra material…
By: Debbie Viess (amanitarita)
2012-09-15 00:37:51 CDT (-0400)

we can run the DNA at UCB.

Also, A. mutabilis has a limbate volva…
By: R. E. Tulloss (ret)
2012-09-15 00:33:41 CDT (-0400)

and is ensconced in sect. Lepidella rather than sect. Validae, which is a reasonable possibility for this observation.


Similar staining color
By: Bob Chapman (Disciseda)
2012-09-14 20:37:28 CDT (-0400)

The main difference I see is mine has a tapering base.

I am adding a link
By: Martin Livezey (MLivezey)
2012-09-14 12:59:12 CDT (-0400)

to compare the color of the staining.., Do you have a photo of it sliced in half like these?


Thanks for mentioning the elevation. [edited]
By: R. E. Tulloss (ret)
2012-09-14 11:34:42 CDT (-0400)

My email postal address can be found at

[edit] http://www.amanitaceae.org?About+our+editors [edit]

Thank you.


Its new to me as well
By: Bob Chapman (Disciseda)
2012-09-14 10:38:29 CDT (-0400)

I’ve not seen this one in the Chiricahuas either. This area is very similar to the Chiricahuas. Quercus emoryi and Q. arizonica. E-mail me your address and I’ll ship you the dried collections. If you need fresh material, that too is doable. We’re having a weird monsoon; the latest I’ve ever seen. Who knows what might pop up. I may make a trip to the Chiricahuas in a few days, but definitely more collecting around here. Oh, the elevation is 6323 ft.

Very interesting.
By: R. E. Tulloss (ret)
2012-09-14 10:05:06 CDT (-0400)

I don’t think that I recognize this one from the days collecting in the Chiricahuas.

If you still have the herbarium material, I’d like to look at it.


Created: 2012-09-13 17:59:46 CDT (-0400)
Last modified: 2015-01-23 12:04:48 CST (-0500)
Viewed: 459 times, last viewed: 2017-12-08 16:21:38 CST (-0500)
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