Observation 213740: Aspropaxillus giganteus (Sowerby) Kühner & Maire
When: 2015-07-25
(34.367° -111.003° 2411m)
Who: wbwarner

Notes: One of a pair of specimens immediately adjacent to a downed Douglas fir log in mixed conifer & oak forest. The specimen had the look and consistency of a large Pleurotus dryinus, similar odor, but with more or less central stipe.

Proposed Names

-31% (3)
Recognized by sight
55% (1)
Recognized by sight: it’s a big white gilled mushroom.
71% (2)
Recognized by sight
-18% (2)
Recognized by sight
83% (1)
Recognized by sight: good call, Alfredo!

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Alfredo Justo (Fredo)
2017-01-26 14:10:13 EST (-0500)
By: Debbie Viess (amanitarita)
2017-01-26 13:55:08 EST (-0500)

is a TROPICAL genus, with sinuate (aka notched) gills.

Highly unlikely to be found in freakin’ AZ. Just sayin.

I agree this is also not Neolentinus.

Definitely NOT Neolentinus ponderosus
By: wbwarner
2015-08-24 10:47:09 EDT (-0400)

Now you’re just guessing! :) I know Neolentinus ponderosus well; this is not it. It lacks the serrate gills and pileus scales, though it is similar in size and toughness to that species (though actually more like a giant Pleurotus in consistency). One thing to add: fresh context was slightly sweet to the taste (as in sugar sweet). David Arora also suggested Macrocybe from the picture. I have the specimen and it will go to the Univ. of AZ collection.

Nice find! Your photos remind me of an old trick
By: Judi T. (AvidAmateur)
2015-08-23 21:14:06 EDT (-0400)

my dad taught me about taking pictures of the fish you catch … “Hold the fish in front of you toward the camera”, he used to say. “It makes the fish look bigger.” I think your mushroom probably looks big enough on its own, but your observation brought back some funny memories=)

Created: 2015-08-23 19:24:49 EDT (-0400)
Last modified: 2017-02-05 18:55:30 EST (-0500)
Viewed: 100 times, last viewed: 2017-09-21 03:21:21 EDT (-0400)
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