Gymnopilus aeruginosus (Pk.) Singer Cap 2-6cm across, convex; dull bluish gray-green or variegated with pink or red patches, becoming warm pinkish buff then drab brown when dried; dry then covered with small tawny or blackish scales and patches. Gills adnexed to adnate, crowded, broadish, numerous; creamy buff to pale yellowish orange. Stem 40-120 x 10-20mm, solid, becoming more or less hollow; similar color as cap; smooth or minutely hairy, sometimes lined with a hairy base. Veil fibrillose, yellowish, often leaving a slight zone at top of stem. Flesh whitish tinged greenish or bluish green, becoming yellowish or pinkish brown when dry. Odor mild. Taste bitter. Spores ellipsoid, minutely hairy, 6-8.5 x 4-4.5µ. Deposit dark reddish orange or brownish rust. Pleurocystidia rare; clamp connections present. Habitat in tufts on logs or stumps on hardwoods and conifers. Found widely distributed throughout North America. Season May-November. Not edible -suspect. Comment Occasionally the cap can reach 23cm across. My photograph does not show the bluish gray-green colors very distinctly.