Spongipellis unicolor

Spongipellis unicolor

''Spongipellis unicolor'' is a species of polypore fungus in the family Polyporaceae. It is a plant pathogen that affects oak trees. The fungal hyphae grow inside the tree, rotting the heartwood.
Polypore Fungus - Spongipellis unicolor *Tentative ID

Habitat: There were several growing on a snag; mixed forest
https://www.jungledragon.com/image/123188/polypore_fungus_-_spongipellis_unicolor.html
https://www.jungledragon.com/image/123190/polypore_fungus_-_spongipellis_unicolor.html
https://www.jungledragon.com/image/123189/polypore_fungus_-_spongipellis_unicolor.html Fall,Geotagged,Spongipellis unicolor,United States

Appearance

The fruit bodies are initially whitish to buff in color before turning brownish in age. The pores on the underside of the cap are circular to angular. Spores are held in tubes and are ovoid to ellipsoid, with dimensions of 7–9 by 6–7 μm.

References:

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Taxonomy
KingdomFungi
DivisionBasidiomycota
ClassAgaricomycetes
OrderPolyporales
FamilyPolyporaceae
GenusSpongipellis
SpeciesS. unicolor