Observation 199929: Laricifomes officinalis (Batsch) Kotl. & Pouzar
When: 2015-02-25
No herbarium specimen

Notes: Fruiting approximately 100ft. up an old growth Douglas fir tree.

Elevation: approximately 3000ft.

Temp: low 30’s.

Largest Agarikon I’ve seen in a canopy to date (2/27/15).

Species Lists


Fruiting approximately 100 feet up an Old growth Douglas Fir.
Updated images from a much sunnier day. 3/3/2015.
Updated images from a much sunnier day. 3/3/2015.
Updated images from a much sunnier day. 3/3/2015.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: Drew Henderson (Hendre17)
2015-03-05 11:41:06 CST (-0500)

Sorry, the article was generated in Slovenia. Pretty interesting idea, eh?


Yo Debbie-
By: Drew Henderson (Hendre17)
2015-03-05 11:34:12 CST (-0500)

It occurs in many parts of Montana, Idaho(near Cour’d alene), some even say Colorado. Pretty much wherever Larch and Douglas fir are old/mature enough. It’s funny, the Douglas fir Agarikon are less common and hardest to Identify. Conks I have documented on Larix are almost always the classic beehive shape and unmistakeable- super common comparatively. Glad that yours was confirmed- I remember wishing I could chime in on the original debate. It was a monster find!

I predict that Agarikon at one time or another occurred on the east coast(before old growth deforestation) but currently I have heard nothing regarding Agarikon East of Colorado in the USA. It does occur in Morocco and most of Eastern Europe. Common in former soviet union. I read about a really interesting project from the Czech republic where they have been inoculating young Larix species with L. officinalis and the results are what you’d expect from any parasitic/saprophytic fungus. The trees are establishing new pockets of mycelial/hyphae growth. I think if this method is applied(even if fresh material is transplanted into a new substrate, as I have done w/ Ganoderma) during summer months it will most likely be successful long term. I propose that rather than just sample portions to be grown in culture, we begin to transplant living tissue directly into bore holes and covered in wax on Larix occidentalis in addition-at 50yrs and younger. Just a promotion to spread strains without harvesting conks that should remain in situ. We only harvest sporophores that have fallen off the substrate or are completely crispy and dead tissue underneath.



that’s funny, Drew!
By: Debbie Viess (amanitarita)
2015-03-05 10:45:37 CST (-0500)

yeah, I have always thought that someone should come up with some sort of neck brace/binoc strap to lean against whilst looking up up up!

spotted and barred, eh? who cooks for you? at least you are breaking YOUR neck for the spectacular birds! it’s those darned songbirds that are killin’ me! ;)

yes, our big polypore did turn out to be Agarikon, despite some early evidence to the contrary.

Here’s the original post, still under that Fomitopsis moniker (just changed):


Did Agarikon ever occur in the SE, or is it strictly a western species?

No doubt Debbie-
By: Drew Henderson (Hendre17)
2015-03-04 12:59:35 CST (-0500)

That’s actually when I usually find these! These old growth Doug’s usually harbor spotted owls, barred owls, pileated woodpeckers, Western tanager, etc. and when you’re lucky Agarikon ;)

Now I just need a good lawyer, a neck brace and hopefully a form to fill out for the old growth forests HR department…

Did you ever confirm your “Agarikon” specimen from a few years back?

I have come across a few that are confusing to say the least in terms of microscopy. Round, thick hyaline spores similar to F.pinicola under scope. Most keys list Fomitopsis officinalis as having ellipsoid spores. Either way, all Fomitopsis in our region are medicinally beneficial and have myriad immune boosting properties. I love finding them-even if they are 100’s of feet up in the canopy!

By: Debbie Viess (amanitarita)
2015-03-04 12:02:16 CST (-0500)

and I thought birding was hard on the neck!

Created: 2015-02-27 18:38:04 CST (-0500)
Last modified: 2015-03-04 11:39:06 CST (-0500)
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