Observation 28651: Ganoderma P. Karst.
When: 2009-11-03
No herbarium specimen

Notes: Found under a living redwood.
It’s possible it could have been on an Oak root.
I have found them on Oak in this area before.

[admin – Sat Aug 14 01:58:55 +0000 2010]: Changed location name from ‘Browns Valley, CA’ to ‘Browns Valley, California, USA

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I have no opinion as to the ID of this handsome conk…
By: Debbie Viess (amanitarita)
2009-11-24 21:18:19 CST (-0500)

but since it was growing UNDER a redwood, redwood debris should be expected to be incorportated into the fruit body. I’d say that the actual tree wood host remains unknown, and from here on in, it’s Speculation City.

G. tsugae
By: Erin Page Blanchard (CureCat)
2009-11-24 19:57:31 CST (-0500)

If it was in fact growing from Oak, then no, it is not G. tsugae.
G. lucidum is the hardwood dwelling species.

If it was growing from conifer wood, it is likely G. tsugae, but could also be G. oregonense, which is usually darker (but not always), has pores about twice the size of G. tsugae at maturity, and colonizes true Firs (Abies), Hemlock (Tsuga), Pine (Pinus), and Douglas Fir (Pseduotsuga).
G. tsugae prefers Tsuga and Abies almost exclusively.
G. oregonense is also one of the more common varnished Ganoderma in Northern California and the Pacific NorthWest.

beautiful fruit body, whatever its name…
By: Debbie Viess (amanitarita)
2009-11-24 12:01:59 CST (-0500)
By: Erin Page Blanchard (CureCat)
2009-11-24 06:18:48 CST (-0500)

Knowing the type of tree or wood that this Ganoderma was growing from is pretty important for distinguishing from at least 3 morphologically fairly indistinct species.

Created: 2009-11-23 23:05:30 CST (-0500)
Last modified: 2014-11-17 23:55:05 CST (-0500)
Viewed: 110 times, last viewed: 2016-10-22 17:33:21 CDT (-0400)
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