Observation 177687: Lactarius deceptivus Peck
When: 2014-09-11
No herbarium specimen

Notes: In mixed woods that include balsam fir and birch. This specimen is growing about 2 feet up on a dead well rotted conifer stump. I know Lactarius are mycorrhizal so if the ID is right then the wood is just a substrate for the mycelia to pass through? Flesh is white and firm. Odor is pungent. Any ideas would be appreciated.

Proposed Names

28% (1)
Eye3 Eyes3
Recognized by sight: brownish discolorations and scales on cap, white milk spotting gills brown, bitter taste
Based on chemical features: KOH pinkish red on cap surface

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Lactarius are mycorrhizal.
By: Daniel B. Wheeler (Tuberale)
2014-09-16 19:37:34 CDT (-0500)

While I have not seen any growing from wood, growing from a “dead well rotted conifer stump” makes sense to me. It is using the stump as a water reservoir. Several mycorrhizal fungi also produce laccase, and enzyme which allows them to break down wood, and recycle to nutrients to living trees.

Any comments on this would be appreciated
By: Terri Clements/Donna Fulton (pinonbistro)
2014-09-12 07:41:52 CDT (-0500)

Created: 2014-09-11 13:41:20 CDT (-0500)
Last modified: 2014-09-16 20:52:07 CDT (-0500)
Viewed: 39 times, last viewed: 2016-10-21 19:57:31 CDT (-0500)
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