About Gymnopilus aurantiophyllus Hesler
The cap of Gymnopilus aurantiophyllus ranges from 4 to 8 cm (1.6 to 3.1 in) in diameter, and is colored bright yellow orange or ochre. The specific epithet aurantiophyllus derives from the Latin word aurantius, which means approximately orange. Its gills are narrowly attached to the stem with a distinct notch. This species has a distinctly bitter taste, and is not recommended for eating. It grows in clumps on sawdust, and has been collected in Oregon in November. It can be found in pine forests, growing on decaying, lignin-rich substrates such as wood chips or old stumps. This species is primarily distributed along the Pacific coast of North America, and is most frequently observed during the months of December and January.