Observation 160634: Amanita sect. Vaginatae sensu Zhu L. Yang
When: 2014-02-27

Notes: Two fungi of similar appearance growing in substrate, (leaf litter), about 24’’ (inches) apart. Both had well formed volva at the base of the stipe.

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Thanks for the bundle, Ian.
By: R. E. Tulloss (ret)
2014-04-19 00:08:00 CDT (-0500)

Very best,

Rod

Comment for groundgog.

Hi and g’day to Rod also, Yes that’s how it goes. Have a dryer now that helps a lot. “So you Win some and Loose some”, Comes with the daily trials and tribulations. Last outing I broke a leg on my trusty old tripod. Spent the rest of the days shoot with only two legs. That was fun, but interesting, innovating. (used a lot of tree trunks.) Thanks for letting me know. The last “Bundle” for Rod to “play with”, should arrive about the end of the month hopefully in tact.
Chow, kk

Hey Ian,
By: groundhog
2014-04-18 15:08:42 CDT (-0500)

Unfortunately as you suspected your specimen was to far gone to be used.
-Naomi (working with RET)

Thank you, Ian.
By: R. E. Tulloss (ret)
2014-03-20 08:46:11 CDT (-0500)

Your material has arrived. I see what you mean about the condition of the specimen. I will see what it has to say for itself.

Very best,

Rod

Color on the stipe.
By: R. E. Tulloss (ret)
2014-03-03 18:07:58 CST (-0600)

Color on the stipe of an Amanita is related to color on the edges of the gills. Because Amanita is the only genus in which mushrooms grow from a solid lump, they must have a way of separating the parts of the mushrooms that are all interconnected with each other at first. Amanita had to develop the Agaric equivalent of single use velcro to get the gills neatly off the stipe and/or the partial veil. When the there is pigment in the “velcro” as is sometimes the case, you will see gills that (at least at first) have a dark edge and, sometimes, that pigment will also appear on the fibrils that cover the young stem’s surface. The stem stretches longitudinally as it grows and increases in diameter; and the combined stretching effects creates the pattern of colored fibrils on the stipe. So the color on the stipe in sect. Vaginatae is often a result of color on the volva and color on the gill edge “velcro” material. As you discovered, you can scrape it off.

Very best,

Rod

Notes and added comment

Rod, I re-read my notes about the containers and how I have the set up. You may like to read the corrections/updates I have made. Also when I inspected the stipes, I found that the lines of colour, (for the want of a better description), on the stipes, was easily removed, (scraped off), by my penknife. I have not really done this before, as I thought the markings were deeper within the stipe. I also noticed the specimen wasn’t drying like I expected and lifted it onto another (absorbent) piece of paper. I will do some scoped images today and if they are reasonable I will let you know and also load to the current file on MO. “A Bit Demanding” is certainly true. Learning every day.

Not to worry…you need to invent something.
By: R. E. Tulloss (ret)
2014-03-03 16:13:16 CST (-0600)

They really need to breathe and can’t tolerate much of an increase in temperature in an enclosed space. That’s why I use an open basket.

I think this is going to be difficult for you … with all your camera gear. You may have to invent something. I collect ONLY amanitas (unless I run into FOOD), and I’m pretty disciplined about not collecting more than I can process in an afternoon. I process the Vaginatae first always to reduce their time-to-dryer. Also, I usually am with a student, one of my kids or grandkids, my wife, or other adult collectors. So I have an entirely different sort of set up.

I worry that this may not work for you because of your photographic goals.

Hmmmm. This sounds crazy; however, for items the caps of which are not TOO broad, a sort of stiff-ish tube of screen like material with a zipper or velcro down one size and a sealed bottom might work (amanitas rolled in waxed paper with twisted ends stacked in side the contraption). New items would be added in the upper part of the tube. Contraption carried vertically on a walking stick sort of thing. Care would have to be taken not to crush the mushrooms. To make less crushable, perhaps one could use aluminum screening to construct the tube and have little latches on it (or tie-strings) instead velcro (well, velcro might still work).

Amanitas are…a bit…demanding.

Very best,

Rod

Dreid Specimen!!!

Oh Dear. I really messed up with this specimen. It was collected in a days walk in a lined container of which I carry several in my backpack. Each time I use these containers I thoroughly wash and dry them and reline with fresh wax paper. They are plastic containers, with removable sections, allowing me to use the appropriate space for the size of the specimen. I line the sections with clean cut wax paper each use. This seems to work except on a couple of occasions when the specimens dissolved to a mess. I thought it may have been caused by infestation. The areas I traverse are not suitable for open containers. I lay the containers I use flat in my back pack, and use another sheet of folded wax paper over the top of the container, (under the lid) that seals each section. That way I don’t get contamination from sections. On top of the folded paper I have a thin section of light cloth and this hold the lid firm and secure. The seal so far has been adequate. For longer periods I have a cardboard container and cut wax paper which I use to envelope the specimens. I also carry some cut cardboard over the specimens and standard envelopes which I use at times. I can also seal these in the field. The box has breathing holes to reduce the sweating effect and control some of the humidity. What is the best way to save “amanitas” as obviously it will happen again?.

Man oh man…
By: Debbie Viess (amanitarita)
2014-03-03 10:55:15 CST (-0600)

everything is just so … different … down under!

Lovely photo documentation work, as always Ian.

How do you dry your specimens? And how do you possibly keep them in good shape until you do while you are off in the field for days? Or was this one just from a local walk?

Those darned amanitas are the definition of perishable…

There may be spores. There may be DNA. I am curious amanita.
By: R. E. Tulloss (ret)
2014-03-03 08:13:30 CST (-0600)

I’d love to see what you can spare. Probably would be good to send the fragile creature in a stiff box….

Very best,

Rod

Dried Specimen

Rod , The dried specimen looks like a photo on a piece of dried paper. It includes the stipe and half cap. Not sure if this is now of any value. There is some thickness to the specimen. My apologies kk. (still available if you wish).

I see there is a dried specimen, Ian.
By: R. E. Tulloss (ret)
2014-03-02 22:42:14 CST (-0600)

Nay I have an opportunity to examined it?

Very best,

Rod Tulloss

Created: 2014-03-02 18:41:59 CST (-0600)
Last modified: 2014-03-04 14:22:41 CST (-0600)
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