Notes: Beckwith’s Point Trail, 35°12’38.36"N 85°54’0.40"W, el. 587 m. The fungal material is quite rigid. Some edges are sharp. Substrate is a living chestnut oak, Quercus prinus. Cutting the thallus and mashing it a bit with a knife resulted in three small areas along the cut turning amber-reddish-orange, rather exactly matching the color of the drops in this photo of Stereum guasapatum,
but no droplets formed at all, and two other cuts produced no color change. Perhaps that’s the best it could do in mid-December. Thallus color, growth form, oak substrate, and at least a feeble effort at trying to produce a positive bleeding test seem to make Stereum guasapatum a reasonable hypothesis at this point. A checklist of the fungi of Great Smoky Mountains National Park, to the NE of here, lists 10 species of Stereum and 4 other species in the Stereaceae for the park. Another checklist from the University of Tennessee, Knoxville, lists 21 species of Stereum from the park.
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It says that a Stereum on oak is most likely gausapatum (“bleeding” if it’s bruised when fresh). If not, others in the Stereum hirsutum complex are possible too (hirsutum, ochraceoflavum).
Created: 2008-12-11 15:19:11 PST (-0800)
Last modified: 2008-12-11 15:19:11 PST (-0800)
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