Observation 47702: Rhizopogon brunneiniger A.H. Sm.

When: 2010-06-25

Collection location: Loon Lake, Grasmere, British Columbia, Canada [Click for map]

Who: Johannes Harnisch (Johann Harnisch)

Specimen available

Found under Douglas-fir

N 49’06.994

or location in decimal degrees
N 49.11657
W -115.11385

elevation 2855 ft
870 meters
Near Loon Lake campground, Grasmere BC not far from the US/Montana-Canada/BC border

Proposed Names

60% (2)
Recognized by sight
84% (1)
Used references: Field Guide to North American Truffles, by Matt Trappe, Frank Evans, and James Trappe; p. 70, which states “Spores: 5-7 × 1l.8-2.5 microns, bacillliform, smooth, colorless singly but yellowish brown in mass.” There is some question regarding photos 4-7 (with blue background) as the gleba appears to be much darker than the first in situ photos. Gleba is said to be light yellow to olive brown in age.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Images with blue back gound were
By: Johannes Harnisch (Johann Harnisch)
2010-07-06 18:56:11 PDT (-0700)

taken later in the evening and are the same specimens

By: Daniel B. Wheeler (Tuberale)
2010-07-06 09:24:21 PDT (-0700)

According to Mushrooms Demystified, septate is defined as having “one or two common walls,” which does appear in your micrographs. The yellow-brown spores in mass also tends to prove Rhizopogon brunneiniger, BTW. Very nice photos!

Are my last images
By: Johannes Harnisch (Johann Harnisch)
2010-07-06 07:22:43 PDT (-0700)

pictures of septate Hyphae ?

Okay Thanks
By: Johannes Harnisch (Johann Harnisch)
2010-07-05 17:50:36 PDT (-0700)

I should be able to send some in on the weekend

Related to Suillus and Boletus
By: Daniel B. Wheeler (Tuberale)
2010-06-29 08:15:20 PDT (-0700)

Different species of Rhizopogon are related to both Suillus and Boletus mushrooms, so it is unlikely any of them will be found to be poisonous in the future. That said, the same cautions apply to trying any new food: try a little at first, then a little more, etc. ANYONE can be allergic to ANY MUSHROOM.

Looking around nearby is a good idea. There have not been that many collections from B.C., and what you found may always be something new. Until you get the material under a microscope and can verify the spores are within the limits already established, it might be one of the over 100 species rarely collected. Rhizopogons tend to fruit anytime there is sufficient water and appropriate temperature, so finding more shouldn’t be a big problem. They are easy to cultivate, too, just in case you want to have more of them.

If you don’t have a microscope, mail a bone-dry, sliced sample (1 sporocarp is enough, but more appreciated), along with a self-addressed, stamped postcard to: Forestry Sciences Lab – 20, Attn: Matt Trappe, 3200 Jefferson Way, Corvallis, OR 97331. It can take a few weeks or months to receive a reply, but identification is free.

Oh wow
By: Johannes Harnisch (Johann Harnisch)
2010-06-28 18:41:44 PDT (-0700)

they were so tough that I thought they would not be edible…
interesting thing is that they were not very deep in the ground, may be I should have dug around for more.

It is Douglas-fir!
By: Johannes Harnisch (Johann Harnisch)
2010-06-27 17:47:24 PDT (-0700)
Looks like
By: Daniel B. Wheeler (Tuberale)
2010-06-27 17:08:19 PDT (-0700)

Rhizopogon brunneiniger. Do you remember what trees were growing nearby? Hemlock, maybe? True fir? Douglas-fir?

Created: 2010-06-27 15:17:36 PDT (-0700)
Last modified: 2010-07-11 17:47:10 PDT (-0700)
Viewed: 110 times, last viewed: 2017-06-07 18:01:18 PDT (-0700)
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