Observation 174917: Ganoderma polychromum (Copel.) Murrill
When: 2014-08-22
No herbarium specimen

Notes: This was growing just above the base of a dead oak tree. The flesh is dark brown.

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There is a drop of resin
By: MSchink
2014-08-28 09:27:04 CDT (-0400)

on the third photo down. Resinaceum flesh is variable with the internal color varying from dark brown to a lighter color. Specimens will often only produce resin while still growing, the way to test for the resin is to prick the white growth edge. It is highly unlikely to be lucidum as lucidum is not known to occur in North America. If the material is fresh enough I might be able to get a culture and I know a guy who is currently collecting them for sequencing.

No resin!
By: Thomas Laxton (Tao)
2014-08-28 07:58:48 CDT (-0400)

These specimens did not produce any resin (yellow/orange liquid) at all. I cut the smaller specimen in half with no signs of resin secretion and it was still very fresh. The flesh is a darker brown not light wood colored as in the description of Ganoderma resinaceum. I have material saved if any one wants to do genome testing on it.

Ganoderma resinaceum.
By: MSchink
2014-08-28 04:53:31 CDT (-0400)

This is West coast North American Ganoderma resinaceum, Ganoderma lucidum does not occur in North America. This specimen also exhibits the telltale bleeding of a yellow/orange liquid typical of G.resinaceum.

Created: 2014-08-22 18:54:14 CDT (-0400)
Last modified: 2015-05-01 20:53:20 CDT (-0400)
Viewed: 189 times, last viewed: 2016-09-01 17:05:37 CDT (-0400)
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