Macroscopic feat.:

• Cap/Pileus: Large, up to 180 mm broad, usually broadly convex, surface dry with small scales on the margin. Color Bright, usually some shade of orange ranging from buff yellow to tawny-yellow, becoming rusty with age. Taste very bitter.
• Gills/Lamellae: Close to crowded. color pale yellow to orange-yellow, becoming rusty with age.
• Stem/Stipe: 8-10 mm long, 6-16 mm at the apex, clavate or tapered downward, colored at the cap. Partial veil remaining leaving a nearly membranous or fibrillose zone at the stalks apex.

Microscopic feat.:

• Basidio/Spores: 5.5-8.5 x 3.5-4.5 µm. Sporeprint rusty brown to orange-brown in potassium hydroxide.

Habitat: The above photograph (see here) of Gymnopilus luteofolius was gathered terrestrial, growing from wood chips in a clearing by Jim Smith.

Distribution: The above image of Gynnopilus luteofolius was collected and photographed by Jim Smith of CT at Deception Pass, Washington. Used with permission by Steven Peele of the FMRC.

Season: It fruits from summer through the winter depending on the location and weather.

Dosage: Dosage at this moment is not known. Some users have suggested that large amounts of this bitter shroom are needed for their desired psilophoric effects, but caution blows in the wind. Try 1-2 small to medium to find desired dosage.

Comment: This is a very bitter tasting mushroom and a large or or few specimens may be consumed for the desired effects.

source - www.mushroomjohn.org

Pictures at www.mushroomobserver.org