Common Names: Cinnabar polypore, cinnabar-red polypore
Syn. Pycnoporus cinnabarinus. A bright, almost neon orange colored polypore. Saprobic on the dead wood of hardwoods (usually with bark still adnate) and rarely on the wood of conifers; causing a white rot. Semicircular to kidney-shaped; planoconvex; 2 to 13 cm across; up to 2 cm thick; upper surface finely hairy to suedelike, becoming roughened or nearly smooth (often pocked in age), bright reddish orange to dull orangish with age; undersurface bright reddish orange, with 2 to 4 round to angular (or sometimes slot-like) pores per mm, occasionally extending onto the substrate below the cap; tubes to 5 mm deep; stem absent; flesh tough, reddish to pale orange.