Growing in mixed woods.
Caps up to 8.2 cm across and stipe up to 14.5 cm across.
Striations up to 18 mm long.
Spores white and not amyloid.
Spores ~ 9.0-11.1 X 8.2-10.9 microns, Q(avg) = 1.05.
Could be something like Amanita sp-T37?


Spores in H2O + Congo red @ 1000X.

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Herbarium Rooseveltensis Amanitarum (R. E. Tulloss) has received specimen.
By: mcmacher
2017-06-30 12:27:33 CDT (-0400)

We have received the dried specimen. Thank you. It is being accessioned in Rod’s herbarium.

There’s a lot to do on sp-T06.
By: R. E. Tulloss (ret)
2017-06-22 20:01:27 CDT (-0400)

I’ve got the material sitting out so I can at least measure the spores. Hopefully we can get DNA from this new collection to see if it will support putting the various collections together.

If you look at the cap between the striations, I think your material and the previous collections are both dark on the raised areas between the striations.
I’ve taken to thinking of the color of the interstriation areas as having to be viewed as though the areas in between the ridges had not opened up and “spoiled” the continuous color that once was present.

Very best,


Thanks Rod,
By: Ron Pastorino (Ronpast)
2017-06-22 17:00:41 CDT (-0400)

It does look like they are very similar.
The only thing that is a little off is that these have a lighter disc and more yellow otter zone. The stipe on these were pretty plain also. However, all were a little aged.

It seems the sp-T06 taxon page is up to date, & the Texas checklist isn’t.
By: R. E. Tulloss (ret)
2017-06-22 16:37:11 CDT (-0400)
This seems to be one of the species that was included in sp-T06.
By: R. E. Tulloss (ret)
2017-06-22 16:34:30 CDT (-0400)

If I’m right, this would be one that still remains in sp-T06 after the removal of justicei. I’ve been working the DNA of the group; but after the hectic last weeks, I’ll have to go back and read my notes. Just discovered I haven’t responded to a bunch of email…going back to April.

Very best,


Created: 2017-06-22 15:29:51 CDT (-0400)
Last modified: 2018-01-08 15:59:03 CST (-0500)
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