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tryptonite
mushroom ninja



Registered: 02/06/04
Posts: 931
Loc: aussie
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Agaricus ID South Australia
#26646518 - 05/03/20 05:04 PM (3 years, 9 months ago) |
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I think this is Agaricus campestris or an edible Agaricus. Can anyone help to confirm?
They are not staining yellow. Gills are pink to dark brown, black. Found in euculyptus mulch in a carpark while looking for subs
Edited by tryptonite (05/03/20 05:17 PM)
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Psilosadhu



Registered: 12/19/19
Posts: 1,907
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Re: Agaricus ID South Australia [Re: tryptonite]
#26646546 - 05/03/20 05:16 PM (3 years, 9 months ago) |
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Probably edible. Could be campestris. What's the smell like?
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tryptonite
mushroom ninja



Registered: 02/06/04
Posts: 931
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Re: Agaricus ID South Australia [Re: Psilosadhu]
#26646551 - 05/03/20 05:18 PM (3 years, 9 months ago) |
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like button mushrooms agaricus bisporus
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Psilosadhu



Registered: 12/19/19
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Re: Agaricus ID South Australia [Re: tryptonite]
#26646630 - 05/03/20 05:54 PM (3 years, 9 months ago) |
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The toxic species of agaricus smells like phenol or creosote. They also usually stain yellow. As for species, I'm not sure, but campestris seems likely.
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OOISI
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Re: Agaricus ID South Australia [Re: Psilosadhu]
#26647279 - 05/04/20 12:52 AM (3 years, 9 months ago) |
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Arvensis also stains yellow though, so at least one edible Agaricus shares a striking trait with poisonous ones.
Some info i found about Campestris:
Can have slighly irregular shaped caps (Not perfectly circular) It may stain slightly pink when handled or waterlogged.
Has sharp edged, close, free gills (not attached to the stem).
Stem is white to light brown, often tapers to be thinner at the base, usually has just a ring or slight veil remnants and is somewhat scaly above the veil.
Flesh is whitish, fairly thick, and similar in density to the white button mushroom. They can absorb quite a bit of water making them a bit softer and turning the flesh brownish.
Spores Dark Brown
Also...
Usually the cap margin remains down-turned or slightly in-rolled even when the cap has expanded fully.
-------------------- Subaeruginosa Guide Bless the Lord, O my soul O my soul Worship His holy name.
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Psilosadhu



Registered: 12/19/19
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Re: Agaricus ID South Australia [Re: OOISI]
#26647305 - 05/04/20 01:06 AM (3 years, 9 months ago) |
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Quote:
OOISI said: Arvensis also stains yellow though, so at least one edible Agaricus shares a striking trait with poisonous ones.
Even campestris can stain yellow. Didn't say the edible ones didn't stain yellow, but the poisonous ones usually does. But not always. And the yellowing is much more intense. Go by the smell. If it smells like shit, don't eat it π
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OOISI
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Re: Agaricus ID South Australia [Re: Psilosadhu]
#26647443 - 05/04/20 04:30 AM (3 years, 9 months ago) |
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Quote:
Psilosadhu said: Even campestris can stain yellow. Didn't say the edible ones didn't stain yellow, but the poisonous ones usually does. But not always. And the yellowing is much more intense. Go by the smell. If it smells like shit, don't eat it π
From my researches yellow stainer Agaricus xanthodermus always stain a deep yellow, and quite prominently. From my obsrevations it also has boxy/cubelike shaped caps in immaturity. Whereas arvensis stains a lighter, paler yellow and less prominently. Arvensis and campestris apparently smell like anise. What other poisonous yellow staining agarics are there other than xanthodermus?
The real question is: Is it possible to identify Agaricus to species based on macroscopic features? Such an identification would no doubt entail a multitude of factors rather than one.
I posted an Agaricus ID and no one touched so I know they are hard. Suprised me a bit considering it is the genus of edible mushrooms most sold/bought in the Western part of the world.
-------------------- Subaeruginosa Guide Bless the Lord, O my soul O my soul Worship His holy name.
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Psilosadhu



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Re: Agaricus ID South Australia [Re: OOISI]
#26647455 - 05/04/20 04:46 AM (3 years, 9 months ago) |
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A.californicus, moelleri, hondensis, menieri, placomyces and phaeolepidotus are all poisonous, bruising yellow and smells bad. Im no expert on agaricus, but I can identify a few. But it's not easy from pictures. Found some I couldn't identify. I just go by the smell of them π
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OOISI
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Re: Agaricus ID South Australia [Re: Psilosadhu]
#26647461 - 05/04/20 04:50 AM (3 years, 9 months ago) |
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Quote:
Psilosadhu said: A.californicus, moelleri, hondensis, menieri, placomyces and phaeolepidotus are all poisonous, bruising yellow and smells bad. Im no expert on agaricus, but I can identify a few. But it's not easy from pictures. Found some I couldn't identify. I just go by the smell of them π
Well if it doesnt stain yellow and doesnt smell bad is a sure-fire means of determining edibility thats really good to know!
-------------------- Subaeruginosa Guide Bless the Lord, O my soul O my soul Worship His holy name.
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Psilosadhu



Registered: 12/19/19
Posts: 1,907
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Re: Agaricus ID South Australia [Re: OOISI]
#26647477 - 05/04/20 05:06 AM (3 years, 9 months ago) |
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If they contain phenol, they smell like phenol π But I'm not 100% sure wether this is a rule without exception.
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Alan Rockefeller
Mycologist

Registered: 03/10/07
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Re: Agaricus ID South Australia [Re: Psilosadhu]
#26647579 - 05/04/20 06:43 AM (3 years, 9 months ago) |
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Quote:
OOISI said: Is it possible to identify Agaricus to species based on macroscopic features?
Sometimes. It depends on where in the world it was found, how well Agaricus has been studied in that part of the world, how many specimens are photographed and the quality of the photos. If the photos are good and there's several specimens in various stages of development and it's from a part of the world that Agaricus has been studied (Europe or USA), then you can nearly always confidently identify the species.
Quote:
Psilosadhu said: If they contain phenol, they smell like phenol π But I'm not 100% sure wether this is a rule without exception.
The toxic Agaricus do smell like phenol, however sometimes the odor is extremely weak, and not everyone can smell phenol.
A better way of identifying the toxic Agaricus is to figure out which section it is in - there are many sections of Agaricus, and only one section, sect. Xanthodermatei is toxic. Two characteristics give away section Xanthodermatei - it's thick, felty annulus and fleeting lutescence. Fleetingly lutescent mushrooms stain yellow where damaged (not always the whole thing - sometimes only the stem base) - But then the yellow goes away after 10 - 15 minutes and turns brown.
There are a lot of edible Agaricus that stain yellow, however those have permanent yellow staining - they turn bright yellow when scratched, and that yellow stays and after a few hours fades to a golden color. Even when dried they are still very golden in color.
The Agaricus in this thread are Agaricus section Xanthodermatei, the toxic section, due to the thick, felty annulus. The edible Agaricus species have a much thinner and smaller ring on the stem. Some, like A. campestris have almost no ring at all.
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OOISI
Suburbanaut


Registered: 03/21/04
Posts: 2,395
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Quote:
Alan Rockefeller said: Two characteristics give away section Xanthodermatei - it's thick, felty annulus and fleeting lutescence. Fleetingly lutescent mushrooms stain yellow where damaged (not always the whole thing - sometimes only the stem base) - But then the yellow goes away after 10 - 15 minutes and turns brown.
This is info every agaric hunter needs to know!
-------------------- Subaeruginosa Guide Bless the Lord, O my soul O my soul Worship His holy name.
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Psilosadhu



Registered: 12/19/19
Posts: 1,907
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Re: Agaricus ID South Australia [Re: OOISI]
#26647620 - 05/04/20 07:21 AM (3 years, 9 months ago) |
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Great info Alan! Thanks!
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tryptonite
mushroom ninja



Registered: 02/06/04
Posts: 931
Loc: aussie
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Re: Agaricus ID South Australia [Re: Psilosadhu]
#26649762 - 05/05/20 04:55 AM (3 years, 9 months ago) |
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Thanks Alan. It has a very felty annulus so it must be xanthodermi.
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