Observation 136462: Amanita Pers.

Growing in mixed woods in the Big Sandy Creek Unit.
Caps up to 5.0 cm across and stipe up to 13.0 cm long.(unable to extract base of one specimen)
Thin, delicate ring on one, remnants on the other.
Striations on cap up to 4mm.
Spores amyloid.
Spores ~ 8.2-10.1(11.0) X 4.9-6.2(6.4) microns, oblong and smooth.
Q(ave) = 1.75. Q(range) = 1.61-1.92.
Outside of being in subgenus Lepidella, I’m not quite sure where this fits…sect. Phalloideae?

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Material received.
By: R. E. Tulloss (ret)
2013-06-21 07:08:53 CDT (-0400)

Thank you, Ron.

This one is a puzzle.

Very best,


That’s a nice name for my former garage…isn’t it? EDITED & EXTENDED
By: R. E. Tulloss (ret)
2013-06-15 17:43:27 CDT (-0400)

And it says exactly what it is—-a herbarium dominated by amanitas in the town of Roosevelt. It’s dehumidified and airconditioned on a system separate from the rest of the house; and so it works better than a lot of herbaria where curator’s are paid.

I wouldn’t want anybody to think that it was a palacial, civic structure housing a grand museum.

If anybody thought that, they were mistaken.

Very best,

R :)

OK Rod, rather than mangle the voucher any further,
By: Ron Pastorino (Ronpast)
2013-06-15 16:24:23 CDT (-0400)

I’ll send it off to the Curator of the Herbarium Rooseveltensis Amanitarum and let him determine the proper home for this collection.

The presence of clamps at the bases of basidia…
By: R. E. Tulloss (ret)
2013-06-15 16:05:40 CDT (-0400)

would make sect. Lepidella highly probable and eliminate sect. Phalloideae.


Elongate spores occur in all three sections mentioned.
By: R. E. Tulloss (ret)
2013-06-15 16:03:08 CDT (-0400)


I think that the younger cap has an appendiculate margin.
By: R. E. Tulloss (ret)
2013-06-15 16:02:27 CDT (-0400)

If I am right about that, then it could belong to sect. Amidella or sect. Lepidella, in the latter case in subsection Limbatulae. The presence of a persistent partial veil strongly suggests the latter; however, the proportionately very small bulb would be unusual as would the marginal striations of the cap.

I’d go through the key to North American Phalloideae in case I am wrong about about placement in that section.

The only species in sect. Amidella in N. America that has even a transient partial veil is A. peckiana, but I have never seen one with such an extended stem.

Do the basidia have clamps?

I’d be very happy to look at the material.

Very best,


Created: 2013-06-15 12:38:50 CDT (-0400)
Last modified: 2018-01-02 22:46:02 CST (-0500)
Viewed: 77 times, last viewed: 2018-04-19 10:16:35 CDT (-0400)
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