Observation 118828: Agaricus xanthodermus Genev.

When: 2012-12-03

Collection location: Merced, California, USA [Click for map]

Who: Randy Longnecker (Randy L.)

No specimen available

Proposed Names

56% (1)
Recognized by sight
91% (2)
Recognized by sight: Should smell bad.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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More yellow staining pics
By: Randy Longnecker (Randy L.)
2012-12-14 18:17:28 -05 (-0500)

can be seen in this observation http://mushroomobserver.org/120012

By: Byrain
2012-12-04 14:59:55 -05 (-0500)

If you want to see a cross section of A. xanthodermus, here is an observation with KOH and spore info as well if you’re interested.


And A. californicus for comparison.


Yellow staining
By: Glen van Niekerk (primordius)
2012-12-04 14:23:06 -05 (-0500)

Yes, Thank you for pointing it out – I hardly ever find this: Usually Agaricus campestris for me!

If you find others, is it possible to cut the stipe in half so that the yellow staining could be seen at the base? I would really like to see this!

Definite yellow staining
By: Randy Longnecker (Randy L.)
2012-12-04 12:08:14 -05 (-0500)

And an unpleasant smell as well. Rarely do I find any Agaricus in the suburbs that don’t stain yellow.

Yellow staining
By: Byrain
2012-12-04 01:34:09 -05 (-0500)

Is present in the 1st, 2nd, 3rd, 4th, and 9th pictures.

Yellow staining?
By: Glen van Niekerk (primordius)
2012-12-04 01:01:00 -05 (-0500)

Did the mushroom display a strong yellow colouration at the base of the stem when cut? Should have a a phenolic smell.

Created: 2012-12-03 21:31:06 -05 (-0500)
Last modified: 2012-12-04 12:14:26 -05 (-0500)
Viewed: 113 times, last viewed: 2018-01-06 18:09:27 -05 (-0500)
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