Observation 55488: Amanita muscaria var. guessowii Veselý
When: 2010-10-14
No herbarium specimen

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Excuse me?
By: Paul Derbyshire (Twizzler)
2010-10-15 15:37:27 CDT (-0400)

How was I rude? I stated a fact: fly agarics aren’t edible unless you’re willing to experience the effects I mentioned.

And I don’t recall a prior interaction between us that was hostile in the way you seem to be describing.

Obviously you’re reading my posts very differently in tone from how I’m writing them — I have no idea why.

Please take a step back and reread them, trying not to make any assumptions about tone or intent. I think you’ll find they’re much more innocuous than you’ve claimed.

Drying amanitas
By: R. E. Tulloss (ret)
2010-10-15 15:28:32 CDT (-0400)

To have an amanita be any use for microscopy after drying, the gills must dry quickly without damage.

If the fruiting body is in anyway robust, it is best to cut the cap into “pie-slices” and put some in the dryer with the gills up and some lying on their sides (in hopes of getting good gill drying one way or the other). Stems (especially those that are solid) should be split lengthwise in quarters. Very large bulbs may have to be split further.

If you can set specific temperatures in a vegetable dryer (for example), I would go for 120 degr. F and keep the amanitas off the bottom rack. Placing the dryer in a cool (or air-conditioned) room makes for very dry air passing up through the specimens in the dryer…and this speeds drying wonderfully.

Specimens should be dried until they are completely inflexible and should be stored in a cool dry place after the drying process is over. Some amanitas will reabsorb moisture from the air even if the air is very dry, and these need to be stored in herbaria with good humidity control to keep them from getting attacked (and ruined) by molds. The amanitas of the latter type are all (to my knowledge) in subsect. Vittadiniae.

Very best,


I agree with ret
By: Jonathan M
2010-10-15 15:17:44 CDT (-0400)

Btw ret do you have trick to dry amanita , I realise that a should have an eye on them :-) so many species and I know you are interested in them :-D

dried…. etc.
By: R. E. Tulloss (ret)
2010-10-15 15:04:56 CDT (-0400)


I don’t eat fly agarics, and I don’t recommend ingesting them.

The reason I collect dried material is for morphological taxonomic studies and for DNA studies related to how many different taxa of fly agaric there are in the world (and, particularly, in North America).

If you can take a photograph of a fly agaric from Ohio and post it here with the location at which it was collected, then dry about one quarter of the specimen (cut in half, top to bottom; then cut in half again, top to bottom) and send it to me, I will place it in the herbarium here in Roosevelt and send a sample for DNA sequencying when that can be arranged.

Amanita spores die when exposed to sunlight for a short time. Spores from a dried specimen are very unlikely to be able to grow in culture. Moreover, the ectomycorrhizal amanitas are extremely hard to grow in culture whether from a spore or from tissue. I just do taxonomy and leave the culture attempts to others.

Very best,


It’s a fly agaric
By: Paul Derbyshire (Twizzler)
2010-10-15 05:16:03 CDT (-0400)

so of course it’s not edible. Unless you want to get both sick and high at the same time.

I saw one of these in the woods near Cleveland, Ohio
By: Mark (mfederici)
2010-10-15 01:37:28 CDT (-0400)

Is this mushroom edible?
Rod, I can surely go get it for you do you want a sample? What can we do with the dried mushrooms? I noticed that you asked about dried. I assume you can use the spores to grow more.

Dried material?
By: R. E. Tulloss (ret)
2010-10-14 20:27:42 CDT (-0400)

Do you have dried material of the pictured specimen?


Created: 2010-10-14 15:59:23 CDT (-0400)
Last modified: 2011-03-19 12:02:13 CST (-0500)
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