Observation 13232: Ganoderma lucidum group

When: 2008-10-27

Collection location: Howarth Park, Santa Rosa, California, USA [Click for map]

Who: Debbie Drechsler (debdrex)

No specimen available

These were fruiting on an unknown oak snag which appears to be infected with Phytophthora ramorum (Sudden Oak Death). If these are G. lucidum they’re the first for me. The reddish brown apex and what appears to be a stem-like structure bursting through the wood of the tree are what lead me to call them G. lucidum. The pores don’t look like any G. applanatum I’ve seen before. The largest individual was 25 cm across. Hypoxylon thouarsianum (apparently now called Annulohypoxylon thouarsianum) also fruiting on the same wood. See Observation 13233.



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Ganoderma resinaceum
By: Irene Andersson (irenea)
2008-10-29 02:24:44 CST (-0500)

is what I would have guessed, with the matted surface and broadly attached fruitbodies. Well, at least possible.. The spores should be slightly larger in resinaceum, also the pores: 2-3/mm in resinaceum, 4-5/mm in lucidum.

Looks right
By: Darvin DeShazer (darv)
2008-10-29 00:08:26 CST (-0500)

This looks like what I’ve been finding on live oak and calling G. lucidum. I checked my spores and they are the correct size for G. lucidum.

Created: 2008-10-28 23:08:10 CST (-0500)
Last modified: 2014-11-06 23:17:03 CST (-0500)
Viewed: 51 times, last viewed: 2017-06-05 05:08:47 CDT (-0400)
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