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Agaricus sp. (TBC)

5 images

Unidentified at Suppressed - 16 Feb 2019
Unidentified at Suppressed - 16 Feb 2019
Unidentified at Suppressed - 16 Feb 2019
Unidentified at Suppressed - 16 Feb 2019
Unidentified at Suppressed - 16 Feb 2019

Identification history

Fungus Agaricus sp. 17 Feb 2019 MaxCampbell

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Author's notes

Found under walnut tree and growing up through Kikuyu. Cap diameter measured at 11 cm. Stipe diameter 1 cm measured. Stipe height 9cm approximately. No stain when flesh broken. Odor is strongly musty.

4 comments

Pam wrote:
   18 Feb 2019
Wow!! What an incredible looking fungus. Sorry I've never seen anything like it before Max. I'd be guessing, but the closest I can come is that it is possibly and Amanita, due to the type of ornamentation on the cap surface, particularly the immature specimen. It looks like it might have an annulus (ring) as well. Though weather conditions have obviously added to it's strikingly different characteristics!!
   18 Feb 2019
Hi Pam, Yeah, hot weather may have created a lot of the cap cracking. I later found another couple under a different tree, and one was similarly cracked but the other just had a plain buff cap upper surface. The dark flecks appear to just be bits of soil. We bought it in for a spore print, but it was a bit past it I think and just wound up sagging and making a big stain on the paper, as well as stinking the place up with a rat's nest sort of smell. The smaller one also looked to be rotting without ever having fully opened, which I suppose might happen if they are exposed to hot dry weather. Jackie
Pam wrote:
   18 Feb 2019
All that sounds characteristic of an Amanita. They often go to muck rapidly and the descriptiion of the smell all ties in. The microbes and invertebrates were making the most of an available meal! Isn't biodiversity a wonderful thing when it's at work!!
   18 Feb 2019
Max has photographed the other group I found in the yard and will put them up separately I presume. One of them has the large bulbous base that I gather is a common Amanita feature, and they smell the same as the ones in this sighting. Just checked Fuhrer, and his photos (p25) of A. ochrophylla and ochrophylloides look good and he mentions an unpleasant smell for both of them. The annulus is not large on our thing, but it is present, as you'll see when Max puts up the 2nd sighting. When I looked at the discarded first one, it was heaving with little maggots.

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Sighting information

  • 2 Abundance
  • 16 Feb 2019 2:04 PM Recorded on
  • MaxCampbell Recorded by
  • Website Reported via
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