list of genera of wood decay fungi

Ischnoderma resinosum; sporocarps with a resin-like odor, annual, effuso-reflexed to pilealte and sessile; pileus dark liver brown in color and suede-like in consistency; hymenophore grey and porose; found typically on down or dead fir logs above 3500 feet in elevation; causes a brown cubical rot which is restricted to large pockets..

Inonotus dryaedeus; sporocarps annual, found at the base of living true fir trees, typically at elevations above 3000 feet in elevation; pileus at first with light brown margin that is rounded and with a dark brown somewhat velvety surface; context 2-4 inches thick, with growth-like rings, and dark reddish brown in color. When old sporocarps of Inonotus dryaedeus resemble sporocarps Phaeolus schweinitzii which can occur at the same elevation and at the same location. Sporocarps of Phaeolus schweintizii have a context which is 1-2 inches thick and lacks the growth-like rings. Inonotus dryaedeus causes a white pocket rot of the roots and butt of living conifers.

Laetiporus sulphureus, the 'sulfur polypore'; sporocarps annual, somewhat fleshy at first becoming chalky when old, pileate and sessile; causes and brown cubical rot of dead or down conifers and hardwoods (?); pileus bright orange at first (left), often with bright yellow margin; pileus becomes brown with age (middle); hymenophore porose and bright sulfur yellow at first. Forms sporocarps in the fall and early winter; in spring to summer the previous year's sporocarps become white and chalk-like in consistency.

Melanotus picipes species complex; sporocarps centrally to laterally stipitate, annual, and leathery in consistency; hymenophore white at first becoming brownish with spore maturity; stipe typically with a dark brown to black velvety base; causes a white spongy rot of down hardwood branches. A complex of several closely related species, all of which are difficult to identify.