Observation 145653: Suillus Gray

When: 2013-09-15

Collection location: Sisters Ranger District, Deschutes National Forest, Oregon, USA [Click for map]


Who: Joe Cohen (Joseph D. Cohen)

No specimen available

Proposed Names

-13% (4)
Used references: Arora, Mushrooms Demystified. Cap staining reddish; flesh staining blue (top of cap and near bottom of stipe), pores.
55% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
In no way this is G. lividus!
By: Gerhard Koller (Gerhard)
2013-09-17 19:26:05 CEST (+0200)

Neither in European nor in Thiers’ sense.
I also go with Suillus. Cap structure, pores strongly supports this ID.
Yes, G.lividus is alder-mycorrhizal. But in Europe it always grows in bog-like habitats, at least in VERY wet areas.

More details
By: Christian (Christian Schwarz)
2013-09-17 19:20:32 CEST (+0200)

thanks for that info, Joe.
The abundance is a count against Gyrodon – overall a very rare mushroom in the west.

The pore structure is a bit finer and less angular-hexagonal here (but definitely similar), and the flesh is pale, whitish, unlike the more colored flesh of G. lividus, at least compared to observation 114667

By: Joe Cohen (Joseph D. Cohen)
2013-09-17 19:00:19 CEST (+0200)

Some alder; there are areas that appear to be recovering old burns or old blowdowns. But there were loads of these mushrooms at many places. I didn’t take careful notice of tree associations. But my general impression is that these mushrooms were in too many places to be associated simply with the alder.

Trees, etc
By: Christian (Christian Schwarz)
2013-09-17 18:37:45 CEST (+0200)

Hi Joe,

I can’t tell enough from the photos to say out of hand that this is not G. lividus, but I think it looks more like a battered Suillus. I found the cap to be much redder, and the blue staining to be much stronger the one time I collected Gyrodon in Oregon.

More importantly, I think G. lividus is an alder associate. Was there any alder around at that elevation?

By: Joe Cohen (Joseph D. Cohen)
2013-09-17 17:59:22 CEST (+0200)

There were also many of these where I was hiking.
In the general area there are Lodgepole, Ponderosa,, some Douglas-fir, some other conifer.
Sorry not to be more specific about what was closest.
And yes, there were some that looked like the one you suggested as Suillus punctatipes, like observation 145659.

By: Richard Bishop (Leciman)
2013-09-17 08:02:59 CEST (+0200)

Joe, I saw a lot of these on the Elk Meadow trail on Monday. I was puzzled as usual over which species of Suillus it was until in a couple of instances I found a nice brown capped Suillus underneath. It appears that they are Suillus punctatipes but they are severely changed in appearance from the rain or hot weather or both. Interestingly there was not a lot of pine where I was hiking but I’m assuming there was where you saw this?

Well now that I look at your picture again I notice that there doesn’t seem to be any pine needles so maybe we are talking about the same type of habitat.

Created: 2013-09-17 05:44:05 CEST (+0200)
Last modified: 2013-09-17 21:26:47 CEST (+0200)
Viewed: 57 times, last viewed: 2017-06-16 20:24:40 CEST (+0200)
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