Observation 136846: Amanita sect. Validae (Fr.) Singer
When: 2013-06-18
No herbarium specimen

Notes: Under oak

Proposed Names

28% (1)
Recognized by sight
52% (3)
Eyes3
Recognized by sight: These remind me somewhat of flavorubens. there appears to be a bit of spotty staining on the cap surface. Yellow vovlal powder on the stipe also matches this type.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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I forgot to mention…
By: R. E. Tulloss (ret)
2014-01-16 21:54:00 PST (-0800)

all evidence supports placing this material in sect. Validae.

R

Well, we have some genetic information, but it doesn’t identify the material.
By: R. E. Tulloss (ret)
2014-01-16 21:52:24 PST (-0800)

We have a lot of sequences from flavorubens; and, as suspected, this material is not that species. However, we have no sequence from a well-identified specimen that is similar to the sequence we have from your material.

So…it would be really nice to have more material and to have a write up on the material when it is fresh.

At any rate, there is more work to be done here.

Very best,

Rod

Very interesting!
By: Justin (Tmethyl)
2013-08-13 17:23:54 PDT (-0700)

I have my eyes out for more, but I’m pretty sure I won’t see them again until spring, or hopefully this fall.

The spores are too small for flavorubens.
By: R. E. Tulloss (ret)
2013-08-13 07:12:04 PDT (-0700)

R

just saw these
By: Debbie Viess (amanitarita)
2013-08-08 21:56:22 PDT (-0700)

wow. i really should have figured a way to get down there this season. these finds are incredible!!!

hard to believe that Jenkins lumped this interesting eastern creature with our western former franchetii. maybe he never saw our version?

very cool validae. congrats.

Just had another thought…
By: R. E. Tulloss (ret)
2013-08-08 15:17:33 PDT (-0700)

Amanita sp-F14 was reported to become more tan when exposed to strong Florida sunlight (collected near Kissimee). Maybe these guys represent the sun-altered state??

This could be checked by repeated collecting…and a little luck.

Very best,

Rod

I have had a chance to check the spores of this species…EDIT EDIT
By: R. E. Tulloss (ret)
2013-08-08 15:14:09 PDT (-0700)

We have sampled the specimen for sequencing, and it will be in our next shipment to Dr. Hughes.

The spores are ellipsoid to elongate (with average Q = 1.69, elongate). This would match several smallish species with yellow universal veil that we know from eastern North America. From our preliminary look at the genetic evidence, at least two “provisional species” in this “group” (Amanita sp-36 and Amanita sp-F14) may represent slight color variations of a single species. The WAO site already shows that their spore size and shape is very similar. The two genes we’re (EDIT) sequencing suggest they might be a single taxon.

The cap color here is different from the samples I’ve seen of both sp-36 and sp-F14, lacking a brown tint and being somewhat more uniform according to your pix. Here are the two links that seem most relevant:

http://www.amanitaceae.org?Amanita+sp-36

http://www.amanitaceae.org?Amanita+sp-F14

If we combine these two codenames, we’ll retain the oldest (sp-36). I believe that (EDIT) sp-36 is the mushroom that David Jenkins called “A. franchetii” in his 1986 book.

We’d be interested in other collections (including groups of fruiting bodies of different ages).

Thanks very much, once again, for sending the material.

Very best,

Rod

interesting indeed.
By: Justin (Tmethyl)
2013-07-25 04:23:37 PDT (-0700)

These are definitely an uncommon find, as these are the only specimens I’ve ever found of this species.

Interesting.
By: R. E. Tulloss (ret)
2013-07-24 19:42:22 PDT (-0700)

I don’t recognize the species.

R

Thanks Justin,
By: groundhog
2013-07-24 11:11:14 PDT (-0700)

This specimen has been received and accessioned into Rod’s herbarium.
-Naomi

There are so many people posting amanita observations these days!
By: R. E. Tulloss (ret)
2013-06-20 09:07:16 PDT (-0700)

I think we should do something with this one. It would be worth trying to sample to see what other taxa it might cluster with. I’ll be glad to take a look at it and send it for sequencing.

Very best,

Rod

Another cool Amanita!
By: Josh M.K. (suchen)
2013-06-20 02:36:17 PDT (-0700)

I don’t believe yours are similar to my observation 136992. Yours all have an annulus, persistent volval remnants, the cap margins are not lined, and some of the universal veil material appears to be yellow! I would love to see both of ours get names.

Created: 2013-06-18 18:51:09 PDT (-0700)
Last modified: 2014-01-17 07:16:49 PST (-0800)
Viewed: 114 times, last viewed: 2014-09-16 17:38:11 PDT (-0700)
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