Pycnoporus cinnabarinus

Scientific name:   Pycnoporus cinnabarinus (Jacq.) P.
Derivation of name:  Pycnoporus means "with compact,
dense pores"; cinnabarinus means "bright red" or
"vermillion" in reference to the coloration of this fungus.
Synonymy:   Polyporus cinnabarinus Jacq.: Fr.;
Trametes cinnabarina (Jacq.) Fr.
Common names:   Cinnabar-red polypore.
Phylum:   Basidiomycota
Order:   Polyporales
Family:   Polyporaceae
Occurrence on wood substrate:  Saprobic; solitary or
grouped, sometimes fused and overlapping on dead
deciduous wood, rarely conifer wood; year-round. 
Dimensions:  Caps 3-14 cm wide and up to 1.5 cm thick.  
Upper surface: Orange to reddish-orange, fading in age to
whitish; wrinkled, warted or smooth.
Pore surface: Orange-red, fading less than the cap surface;
pores 2-4 per mm.
Edibility: Inedible.
Comments: Another species, P. sanguineus, resembles
Pycnoporus cinnabarinus but is thinner (up to 0.5 cm
thick), has a smaller cap, and is not as common.   

More information at

Figure 1. Intensely colored fresh specimens of Pycnoporus
. Photo © Nathan Wilson.

Figure 2. Photo © John Plischke III.

Figure 3. Top surfaces (upper) and pore surfaces (lower) of
several foray specimens. Photo © Gary Emberger.

Figure 4. Specimens on a cut section of a log.
Photo © Gary Emberger.

Figure 5. In time, the orange-red colors fade.
Photo © Larry Grand.

Figure 6. The pore surfaces usually fade less than
the cap surface as illustrated by the pore surfaces of
the specimens in the center. Photo © Steve Nelson.

Figure 7. Pores of Cinnabar-red polypore. Photo © Fred


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