Observation 14307: Rhizopogon evadens A.H. Sm.
When: 2008-11-16
Herbarium specimen reported

Notes: Found under Bay Laurel.

Proposed Names

86% (1)
Eye3 Eyes3
Recognized by sight: Tom Bruns IDed it; common at Pt. Reyes/Tomales Bay.
Based on chemical features: turns red in KOH (applied during BAMS’ UCB meeting last night!).

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
If with Bay laurel
By: Daniel B. Wheeler (Tuberale)
2008-11-20 14:37:16 CST (-0500)

this cannot be R. vinicolor. According to Field Guide to North American Truffles, R. vinicolor appears to be species specific with Douglas fir. So … you may have a new species! I know of no Rhizopogon found with that host.

yup, CA Bay Laurel.
By: Debbie Viess (amanitarita)
2008-11-17 20:35:17 CST (-0500)
Leaves from laurel?
By: Daniel B. Wheeler (Tuberale)
2008-11-17 13:30:51 CST (-0500)

The leaves in your photo appear to be from Umbellularia californica, which I call Oregon myrtle. There is another species, California myrtle, which has notched leaves, shrubby habitat, and usually grows within 1-5 miles of the coast in Oregon. Oregon myrtle can reach 150 feet and 8feet in diameter; California myrtle is seldom more than 20 feet tall. Can you confirm which species this was found with?

Other host species?
By: Daniel B. Wheeler (Tuberale)
2008-11-17 13:21:44 CST (-0500)

R.vinicolor is not known under Bay laurel. No Rhizopogon is currently known under that species that I am aware of, although I have found R. occidentalis (not this observation) under Bay laurel. To my knowledge, R. vinicolor is species specific with Douglas fir. Was there, perhaps, a Douglas fir within 150 feet of the location?

Created: 2008-11-17 11:10:37 CST (-0500)
Last modified: 2008-11-17 11:11:06 CST (-0500)
Viewed: 132 times, last viewed: 2016-10-25 17:31:06 CDT (-0400)