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When: 2008-10-05

Collection location: Larch Mountain, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

A medium-sized brown-capped mushroom. Stip distinctive in that the base is white, but the upper portion is dark pinkish-brown, as are the very bottom of the decurrent gills. Stipe about 5 inches long, cape approximately 2.5 inches (6-8 cm) across, slightly umbonate. Gills mostly white except where attached to stipe, then darkly pinkish-brown.


Proposed Names

56% (3)
Recognized by sight
60% (2)
Recognized by sight: Something in the lignyotus group. What do you have over there in the west? Lactarius fallax?
62% (4)
Recognized by sight: but Irene named it first…
44% (3)
Recognized by sight: L. fallax should be velvety.
Used references: Thiers, H. D., editor. 1982-1997. The Agaricales (Gilled Fungi) of California. Mad River Press, Eureka, CA.
Methven, A. 1997. Lactarius. 79p.

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= Observer’s choice
= Current consensus


Add Comment
It looks like fallax
By: Noah Siegel (Noah)
2012-01-02 02:29:26 CST (+0800)

with a wet cap.
L. pseudomucidus has a smooth very viscid cap that isn’t umbonate. The gill attachment is also right for L. fallax

Good call, Darv.
By: Debbie Viess (amanitarita)
2008-10-07 22:09:26 CST (+0800)

I need to get up to Oregon more! i have only seen this species once, from a Crescent City collection that Desjardin brought down to the BA. You are absolutely right, the cap texture nails it. Thanks for digging deeper.

Thanks, Everyone!
By: Daniel B. Wheeler (Tuberale)
2008-10-07 14:44:04 CST (+0800)

Truly I didn’t recognize this as a Lactarius. I didn’t check to see if there was any latex. I don’t put umbonate camp, decurrent gills, and brown coloration into Lactarius. Personal bias, I guess, since a description of L. fallax does match nicely.

what part of this mushroom does not fit your concept of fallax?
By: Debbie Viess (amanitarita)
2008-10-06 23:00:27 CST (+0800)

seems like a slam dunk to me.
what else COULD it be? seems as tho all potential lookalikes are Eastern in distribution. see Arora’s MDM for both matching description and color photo; also the PNW key council Lactarius key. and, i personally have a bunch of photos I could put up on MO of this guy, too. don’t make me have to do it!

and as we all know, not every lactarius will bleed for ya…

Check for latex?
By: Douglas Smith (douglas)
2008-10-06 00:32:35 CST (+0800)

Did you check for latex from gills?

By: Paul Derbyshire (Twizzler)
2008-10-05 23:50:39 CST (+0800)

a Gomphidius or relative? Cap appearance and gills are not inconsistent, nor the season.