Observation 144084: Amanita sect. Amanita

When: 2013-08-28

Collection location: Ocala National Forest, Marion Co., Florida, USA [Click for map]

Who: Justin (Tmethyl)

No specimen available

Growing under young oaks, sandy soil, white spores, no scent whatsoever.
Very powerful ability to attract, and kill insects, it’s quite an amazing sight.
Hundreds of flies will swarm my collection, then fall over dead in a minute or so.

No annulus,

if anyone can help me out with these?


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I have seen the same results on a very hot weekend in Missourri…
By: R. E. Tulloss (ret)
2013-08-30 06:25:50 PDT (-0700)

with a pantherinoid species (probably A. multisquamosa).

So at least the effect on flies is very similar to the effect recorded from material that induces the “pantherine syndrome” in humans. It might be useful to check the chemistry. Also, since there are edible taxa in section Amanita that do not require special cooking and since it is plausible to hypothesize a common ancestor of sections Amania, Caesareae, and Vaginatae that did not contain chemistry related to the “pantherine syndrome,” it would be interesting to pursue a study of the genetic history of the toxic effects in produced by mushrooms in section Amanita. Looks like an interesting project. I can’t wait to see these little ladies.

Very best,


By: Justin (Tmethyl)
2013-08-29 20:49:35 PDT (-0700)

I will certainly send you some dried specimens.

As for the “Flyicide” it actually doesn’t kill them, I let one sit outside as an experiment, and a very impressive mound of flies piled up around it, then about 2 hours later they were all gone, none dead. (except for the newer flies landing on it)

Note: Fire ants are also lured by the pseudo-pheramones or whatever is alluring the insects.

A terrific observation on the flyicide properties of the species.
By: R. E. Tulloss (ret)
2013-08-29 20:07:23 PDT (-0700)

Does it know them out for a while? Or does it actually kiil flies.


I think there’s a chance that this is Amanita pubescens sensu Coker [EDIT]
By: R. E. Tulloss (ret)
2013-08-29 20:01:52 PDT (-0700)

I think this specie is more common than we know. This is the first time that I’ve see possible material from Florida. The Range is something like North Carolina to Oklahoma, south to Texas. Now we may have evidence that its range extends east to Florida.

Very interesting, Tim. I’ve never seen any of this material when I was out collecting, but I’m pretty sure that David Lewis (eastern Texas) and Dr. Clark Ovrebo (central Oklahoma) have found it several times in sandy soils with Oak.

The gills are the shape of the gills of A. recutita sensu Coker…projecting below the edge of an expanded cap and rounded at the outer end of the gill. [EDIT … deletion of spore description…erroneous.]

Can you send me some of the fruiting bodies from these photographs? I’d love to see them.

Very best,