Observation 98782: Amanita mutabilis Beardslee

When: 2012-06-11

Collection location: St. Augustine, Florida, USA [Click for map]

Who: Hilary Hart (Hilary)

No specimen available



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One thing about A. maculans (and other species described by Murrill)… [edit]
By: R. E. Tulloss (ret)
2012-07-01 21:30:44 CDT (-0400)

is that the original descriptions are very short, and sometimes the spore measurements are not very good (either because of original errors of one kind or another or because the spores on some of the remaining dried material of Murrill’s species no longer have representative spores on them).

So it will be interesting to see what information pans out when an old, poorly known species like A. maculans is found again.

Writing a sentence like the one I just wrote should be a sure trigger for someone to write: “How can you say ‘poorly known’? I see it in my backyard every year!” We’ll see… :)

Very best,


By: Hilary Hart (Hilary)
2012-07-01 15:24:44 CDT (-0400)

This is the first I’ve heard of A. maculans. It seems like its a good bit smaller than mutabilis though, so at least if you do find it, it should be easy to recognize.

Thanks for the tips on increasing the odor. I remember not long ago I had two Agaricus specimens of the same species (likely A. auricolor). One of them I smelled nothing from, but the one I had wrapped up was intense! Just like almond cookies. :)

To intensify the odor,…[edit]
By: R. E. Tulloss (ret)
2012-07-01 13:14:22 CDT (-0400)

wrap the mushroom in wax paper tightly (twist the ends of the wrapping). Put it in the fridge overnight. Take it out of the fridge and let it warm up the next day for, say, 30 minutes. Then open it up and get your nose down into the mushroom as soon as its exposed. You should get a clear smell of anise/licorice. There is at least one other amanita with that smell in Florida, but the other species doesn’t stain raspberry sherbert red the way mutabilis does.

There is another “red”-staining white amanita in Florida (A. maculans); but I have never seen it or seen a picture of it. Consider me to have placed a bounty on it. :)



Very best,


By: Hilary Hart (Hilary)
2012-07-01 10:30:16 CDT (-0400)

Hm. I don’t recall, honestly. I have a pretty weak sense of smell. Next time they pop up (they grow in my sister’s yard!), I’ll be sure to get a good whiff. :)

Nice shots of the color change.
By: R. E. Tulloss (ret)
2012-07-01 07:43:26 CDT (-0400)

Did you get a whiff of the curious odor?


Created: 2012-07-01 00:52:51 CDT (-0400)
Last modified: 2012-07-01 21:32:11 CDT (-0400)
Viewed: 83 times, last viewed: 2017-07-23 09:01:15 CDT (-0400)
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