Observation 24120: Ganoderma oregonense Murrill
When: 2009-08-07
No herbarium specimen

Notes:

[admin – Sat Aug 14 02:03:34 +0000 2010]: Changed location name from ‘Near Echo Summit/Hwy 50, Ca.’ to ‘near Echo Summit/Highway 50, California, USA

Proposed Names

79% (4)
Eye3 Eyes3
Recognized by sight: My mistake. Ganoderma is correct about Ganoderma. Ganoderma oregonense is the most likely candidate.
39% (2)
Eye3
Recognized by sight: My mistake. Ganoderma is correct about Ganoderma. Ganoderma oregonense is the most likely candidate.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Ganoderma tsugae ..
By: Ron Pastorino (Ronpast)
2009-08-17 23:10:34 CDT (-0400)
it most likely is. Have to agree with Ganoderma and go with the evidence as it stands.
Ganoderma sp??
By: Ron Pastorino (Ronpast)
2009-08-15 13:54:35 CDT (-0400)

I don’t know how much weight should be put on limited spore measurements of a young specimen. Just read in Trudell and Ammirati’s latest book, “Mushrooms of the Pacific Northwest”, that “Ganoderma oregonense and G. tsugae are almost impossible to separate from each other and might actually represent only one species”.
Other literature does mention larger and truncated spores for the G. oregonense, which normally is enough for even the most timid splitter. But I guess DNA will have the last word on that.
The other problem is that G. tsugae doesn’t seem to have been identified in California. There are some Western Hemlocks in the high Sierras but I couldn’t say what these were growing on and the bark seems a little large/thick for Hemlock?

Spores not big enough?
By: Ron Pastorino (Ronpast)
2009-08-12 22:30:58 CDT (-0400)
I only took home the smaller undeveloped specimen that had a minimum pore surface. Managed to observe a few spores by sectioning the tube layer(see photos). Only measured a few spores and they seemed to be about 9.5 X 6.0 microns, which apparently is a little small for Ganoderma oregonense. They were roughened. Can’t find any information on Ganoderma tsugae var. tsugae?

Created: 2009-08-07 23:58:32 CDT (-0400)
Last modified: 2011-03-17 08:00:34 CST (-0500)
Viewed: 231 times, last viewed: 2016-10-04 11:58:37 CDT (-0400)
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