Observation 188000: Amanita sect. Vaginatae sensu Zhu L. Yang

The photos show the size of this mushroom.

There was no annulus. I think the volva was “sacklike” the above ground part had already fallen off when I saw the mushroom and can be seen in the photos.

The feel of the mushroom was very soft, smooth and bendy. There was only a slight mushroom smell.

The gills were white and free from the stem.

I used a part of the cap to create a spore print. During the night at home, the gills opened a bit and I had a white spore print the next morning. I will make photos of the spore at 400X and maybe 1000x and take a few measurements. However, since the mushroom is immature, the spore sizes, shapes, etc may not be meaningful. I guess the cap would have to be fully extended to have mature spore. (but as a beginner, I am not sure).

The mushroom was growing solitary in an area of mixed mature hardwoods and a few pine. The closest trees were oak, nut ( of some kind I could figure this out if I had to), Sweet Gum and maybe a birch. I looked over the area and there was no other mushroom growing like it. The immediate area and general area was filled with Russula of various species, ganoderma, honey mushroom.

This park is close to where I live so in the future I will watch for this mushroom and try to get a mature specimen.

I did find a similar mushroom about 100 yards away but it was not quite the same as it had harsher striations at the edge and when I made a spore print, the cap got very smelly. I will enter it separately(188007).



Proposed Names

-28% (1)
Used references: Mushroom Expert, www.amanitaceae.org
56% (1)
Recognized by sight: An unexpanded specimen of spreta should show signs of an annulus/partial veil.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: L G Price (LG_Price)
2014-11-25 22:21:52 CST (-0500)

Thanks Naomi. I’m glad these made it to the Herbarium ok.

Thanks L.G.
By: groundhog
2014-11-25 15:40:09 CST (-0500)

This material has been received and accessioned to Rod’s herbarium. We have also scheduled it for DNA sequencing.

The number of species in sect. Vaginatae
By: R. E. Tulloss (ret)
2014-11-11 08:27:10 CST (-0500)

is not quite as large as the number of stars in the sky.

Going on from there…

This Amanita is almost certainly an undescribed species.

The only way we are going to get a handle on this is to make carefully dried collections that can be studied morphologically and will permit DNA to be extracted and sequenced.

You seem to be having good luck with finding interesting amanitas.

Right now a gremlin has eaten the WAO website (www.amanitaceae.org); however, when my son rescues it again, there is a Texas checklist on the site in which you might be interested. I’d put a link here; but that would mean I had a good memory for medium to long URLs. This is not true.

More when the site comes back.

Very best,


Created: 2014-11-10 21:19:01 CST (-0500)
Last modified: 2018-01-05 13:39:44 CST (-0500)
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