Daedaleopsis confragosa

Scientific name:   Daedaleopsis confragosa (Bolt.:Fr.)
Schroet.
Derivation of name:   Daedaleopsis means "having the
appearance of Daedalea"; confragosa means rough, rugged
and refers to the coarsely wrinkled and bumpy upper surface.
Synonymy:   Daedalea confragosa Bolt.:Fr.
Common names:   Thin-maze flat polypore.
Phylum:   Basidiomycota
Order:   Polyporales
Family:   Polyporaceae
Occurrence on wood substrate:  Saprobic; solitary or
grouped on wood of decaying deciduous trees; June through
December, found year-round.  
Dimensions:  Caps  2.5-15 cm wide; up to 2 cm thick.  
Upper surface:  Grayish to brownish; usually zonate with
gray or brown or yellow-brown bands; surface shallowly
grooved (sulcate), radially wrinkled or bumpy.
Pore surface: White to grayish, then brownish with age;
surface bruises pinkish-brown when fresh; pores develop
into a maze-like configuration with openings about 0.5-1.5
mm wide and thin tube walls (usually much less than 1 mm
thick).
Edibility: Inedible.
Comments: Compare to Daedalea quercina which
superficially resembles it.

More information at MushroomExpert.com:   

Figure 1. Thin-maze flat polypore on a black birch (Betula
lenta) branch. Photo © Gary Emberger.

Figure 2. Daedaleopsis confragosa on a standing tree trunk.
Photo © Tom Volk.

Figure 3. Top and bottom surfaces of Daedaleopsis
confragosa. Photo© Dianna Smith.


Figure 4. This grayish cap illustrates some of the color
variation present in this species. Note the zonation.
Photo © Gary Emberger.

Figure 5. Another variation in the appearance of the caps of
this species. Photo © Dianna Smith.

Figure 6. Pore surface of thin-maze flat polypore. Photo ©
Dianna Smith.

Figure 7. When the pore surface is young the pores
will bruise pinkish-brown. The pink color eventually
turns brown. Photo © Gary Emberger.


Figure 8. Daedaleopsis confragosa has a beautiful maze-like
pore surface with gill-like areas and other variations as well.
Photo © Noah Siegel.

Figure 9. At the top is Daedalea quercina and at the
bottom is Daedaleopsis confragosa. Although both
have a daedaloid pore surface, the walls and pore openings
are much more robust in Daedalea quercina. Photo ©
Gary Emberger.