Observation 191330: Tricholoma murrillianum Singer

When: 2014-11-28

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

Who: Terri Clements/Donna Fulton (pinonbistro)

No specimen available

On ground with tan oak, madrone, manzanita and douglas fir.

Proposed Names

47% (3)
Used references: Identity confirmed by David Arora
92% (2)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
We’ve only found two in downeast Maine
By: Terri Clements/Donna Fulton (pinonbistro)
2014-12-31 18:47:01 WAT (+0100)

in sandy soil under 2 needle (planted) pine in mixed woods. They had been subjected to heavy rains so perhaps the odor dissipated? I went back to our obs and we did note at the time that the specimens developed more odor when dried.

Terri & Donna
By: walt sturgeon (Mycowalt)
2014-12-31 16:12:47 WAT (+0100)

I was interested in your comment that the NE species has a mild odor. In my experience both species have very similar if not identical odors.

Also the habitats and range are interesting. The Eastern species occurs in Eastern Canada, Northern Michigan, Cape Cod and the North Carolina Mountains.
Sandy soil is often the substrate. There seem to be large gaps in its range or at least where it has been reported.

Very cool, I was wondering about the differences
By: Terri Clements/Donna Fulton (pinonbistro)
2014-12-31 05:03:24 WAT (+0100)

between what we find in the east under hemlock and pine in sandy substrate with a mild odor and this obs from California with tanoak and madrone and the “dirty socks” odor. Thanks for the explanation and reference.


By: Christian (Christian Schwarz)
2014-12-31 04:51:57 WAT (+0100)

The western matsutake is a separate species from the eastern one. The name T. magnivelare was based on eastern specimens, so the earliest available name for the western species is T. murillianum.

There is a proposal being written by David Arora that would keep T. magnivelare as the scientific name of the western species. But until that proposal is decided upon (which can take many years, and even then it may be rejected), T. murillianum is the scientifically correct name for the common Pacific-states Matsutake.

See Andrus Voitk’s article here:

Walt, is this a synonym?
By: Terri Clements/Donna Fulton (pinonbistro)
2014-12-31 04:39:52 WAT (+0100)

It appears so on some online sources but MO doesn’t indicate that it’s so.


Created: 2014-12-03 04:31:15 WAT (+0100)
Last modified: 2014-12-31 17:38:38 WAT (+0100)
Viewed: 87 times, last viewed: 2017-06-19 17:20:20 WAT (+0100)
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