Observation 156864: Amanita citrina sensu auct. amer.

When: 2013-12-31

Collection location: Tallahassee, Florida, USA [Click for map]

30.5759°N 84.238°W

Who: Chris Hay (hayfield)

No specimen available

GPS coordinates are representative for this neighbourhood, where mushrooms were abundant on lawns where pine and oak trees where never far (mycorrhizal species may be with either the hardwoods or conifers).

This one was found in two different places while walking, always near the base of an oak (live oak?). I dug out one for closer pics and the other was photographed in situ and left alone. I assume they’re the same species, though they may be different. White spore print.


Proposed Names

56% (1)
Used references: Mushrooms Demystified, 2nd Ed. (Arora 1986)
(see comments under A. porphyria)

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
You’re welcome.
By: R. E. Tulloss (ret)
2014-02-22 20:26:18 CST (-0500)

Very best,


no specimen
By: Chris Hay (hayfield)
2014-02-22 15:02:33 CST (-0500)

RET, thanks for your informative posts. I had come across the project in the process of IDing/ google searches. Sorry, I would have liked to preserve specimen(s) and send to you but I was only there for a few days visiting family. Really interesting project though, best wishes!

And now I see that I have some very pale specimens form Ontario…
By: R. E. Tulloss (ret)
2014-01-01 15:36:21 CST (-0500)

thanks to Eva Skific.

Thanks for pointing out that there are other pallid collections reported on MO…and…that I have seen them. Too many balls in the air, I guess. My apologies to all the collectors whose specimens I seem to have forgotten for the moment. Don’t worry. If I’ve said they were scheduled for sampling, they are; and when their sequences come in I will know it.

Very best,


I don’t know if you have followed the results that have been posted on WAO.
By: R. E. Tulloss (ret)
2014-01-01 12:54:11 CST (-0500)

I just went back to check what we’ve posted on material from Florida for citrinoid taxa.

All the material from Florida that we have examined morphologically and molecularly has been rather pallid. You can find the set of collections from Florida all on the technical tab of this page:


The other pages containing some basic data accumulated so far on citrinoid taxa in eastern North America are these:



All three taxa that have been distinguished will turn lavender if the weather gets cold enough.

All three pages are under development as you will see if you visit them.

At the moment, we think that sp-lavendula02 is the true citrina f. lavendula and that sp-lavendula03 may be identifiable with a nearly forgotten taxon called brunnescens f. straminea.

The above web site pages provide links to each other as well as to the pages for the two existing names.

sp-lavendula01 appears to be what I’ve learned to call a “hybrid swarm.” The evidence for this is that there are many different barcode genes even in a single specimen of sp-lavendula01 indicating that it has a very mixed ancestry that has not become “homogenized” over time. This is an unusual occurrence in gilled mushrooms.

You can use the MO ability to search old comments in order find comments in which I’ve talked about the citrinoid amanitas in the past.

Very best,


Hello, Chris.
By: R. E. Tulloss (ret)
2014-01-01 12:37:18 CST (-0500)

These are so white. I’m not sure if I’ve ever seen something in the citrinoid group in North America that is so very white. If you happen to find more of these and can dry some for me with images (like these) posted on MO. I would very much like to include this white material in the study of “citrina-like” material that we have going on for North America.

Very best,

Rod Tulloss

Created: 2014-01-01 12:03:45 CST (-0500)
Last modified: 2014-01-01 12:03:56 CST (-0500)
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