SPONGIPELLIS UNICOLOR (Schw.) Murrill
Pileus somewhat imbricate, large and spongy, at length indurate, dimidiate, often ungulate, 5-7 X 10-15 X 3-5 em.; surface spongy-tomentose, hirtose, azonate, smooth, sordid- white to isabelline or fulvous; margin very thick and rounded, sterile, entire, concolorous; context spongy-fibrous, white, in- durate with age, especially below, 1 – 2 em. thick; tubes very long, 2-3 em., white to isabelline within, mouths large, irregular, often sinuous, 1-2 mm. broad, edges thin, fimbriate-dentate to slightly lacerate, white to isabelline, at length bay and resinous in appearance; spores globose, 6-8 p..
Occasional on diseased trunks of deciduous trees in Oregon.