Observation 158542: Rhizopogon Fr. & Nordholm

When: 2014-01-24

Seen at: Albion Field Station, Albion, California, USA [Click for map]

Who: Oregon Mycological Society (OMS)

No specimen available

One of the observations on display at the 2014 All California Club Foray. Observations from 24 January are not necessarily from location anywhere near Albion; they may have been collected on the way here.— Joe Cohen

Proposed Names

61% (2)
Recognized by sight
46% (2)
Recognized by sight
Used references: NATS Field Guide To Selected North American Truffles and Truffle-like Fungi, by Matt Trappe, Frank Evans and James Trappe.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Changed vote
By: Joe Cohen (Joseph D. Cohen)
2014-01-30 15:14:37 CST (-0500)

I didn’t look at this area closely enough to map the closest Douglas-fir. There could have been something (even bigger than a seedling) within 300 feet which I did not see or did not notice.

I changed the OMS vote to “promising”, so the community vote is now Rhizopogon vinicolor.

— Joe

By: Daniel B. Wheeler (Tuberale)
2014-01-30 13:04:46 CST (-0500)

don’t grow in scat. The remnants of Rhizopogons are found in scat. Rhizopogons are food for many animals.

The Douglas–fir would not have to be near-by. Animals often transport sporocarps of hypogeous fungi. But Douglas-fir within 300 feet? Nor do the Douglas-fir have to be large. Rhizopogons are often found with seedling trees in nurseries. It may be harder to recognize seedling Douglas-fir which are barely 6 inches tall.

Don’t remember Doug-fir
By: Joe Cohen (Joseph D. Cohen)
2014-01-29 20:14:22 CST (-0500)


The habitat where I found these is a Pine habitat. I don’t remember Douglas-fir.

The Rhizopogon were sitting on the surface adjacent to a small pile of scat. Perhaps they were transported there inside some animal. (So perhaps they did grow up near Douglas-fir.) Maybe their color comes from the scat.


Classic collection
By: Daniel B. Wheeler (Tuberale)
2014-01-25 23:05:26 CST (-0500)

of Rhizopogon vinicolor. Must presume there was some Douglas-fir nearby. “…by maturity dark cinnamon brown…”—NATS Field Guide To Selected North American Truffles and Truffle-like Fungi, by Matt Trappe, Frank Evans and James Trappe.

Believed to be species specific (found only with) Douglas-fir.

Created: 2014-01-25 10:31:05 CST (-0500)
Last modified: 2014-01-30 15:24:37 CST (-0500)
Viewed: 34 times, last viewed: 2017-06-17 22:48:58 CDT (-0400)
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