© Celeste Paley (Photo ID #75153)
Summary:
Ganoderma oregonense forms large yellow-brown to red-brown semicircular or fan-shaped brackets with a lacquer-like surface, growing on conifers. Some authors consider this a synonym of Ganoderma tsugae.
Odor:
none (Miller)
Taste:
unknown (Miller)
Microscopic:
spores 13-17 x 8-10 microns, elliptic, with truncate apex, inamyloid, pale brown in KOH, "wall with two layers separated by interwall pillars, outer wall with pronounced depressions and appearing rough"; cystidia absent; hyphal system trimitic: context generative hyphae 2.5-5 microns wide, "thin-walled, with clamps, rarely branched"; context skeletal hyphae 3-5 microns wide, colorless, thick-walled, non-septate, with occasional branching, context binding hyphae 2-4.5 microns wide, colorless, thick-walled, non-septate, with frequent branching, trama hyphae similar; cap surface with dense palisade of clavate, thick-walled strongly amyloid end cells, up to 70 microns long and 8.5-11 microns wide at widest point, (Gilbertson)
Spore Deposit:
rusty brown (Phillips, Gilbertson)
Notes:
Ganoderma oregonense is found in BC, WA, OR, ID, CA, MT, and NV, (Gilbertson).
Synonyms and Alternate Names:
Dacrymyces sebaceus Berk. & Broome
Ganoderma sequoiae Murrill
Platygloea sebacea (Berk. & Broome) McNabb