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 tube walls less less than 1 mm.
Edibility: Inedible.
Comments: Compare to Daedalea quercina.

More information at MushroomExpert.com:   

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

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.

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.


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. On the left is Daedalea quercina and on the right is
Daedaleopsis confragosa. Top surfaces are above and pore
surfaces are below. Although both have a daedaloid pore
surface, the walls and pore openings are much more robust in
Daedalea quercina.