Polyporus craterellus

Scientific name:   Polyporus craterellus Berk. &
M. A. Curtis
Derivation of name:   Polyporus means "many pores";
craterellus means "like a little crater or cup" in reference to the
depressed center or funnel shape this fungus sometimes
Synonymy:   Polyporus fagicola Murr.
Common names:  
Phylum:   Basidiomycota
Order:   Polyporales
Family:   Polyporaceae
Occurrence on wood substrate:  Saprobic; solitary or
grouped 2-3 on dead deciduous wood; June through
Dimensions:  Caps 5-14 cm wide; stipes 2-5 cm long, 3-8
mm thick, colored like the cap, central to eccentric.  
Upper surface: Ochre to tan with small reddish-brown scales;
radially wrinkled; margin lacerate.
Pore surface: White to yellowish; pores angular, about 1 mm
in diameter; tube layer decurrent.
Edibility: Edible.
Comments: Polyporus craterellus might, at first glance,
resemble a small P. squamosus but P. squamosus is larger,
has larger scales, and has a black stipe, at least toward the

Figure 1. Polyporus craterellus growing on a small stump.
Photo © Gary Emberger.

Figure 2. Note the radially wrinkled cap, depressed center,
white pores, and distinct stalk. Photo © Gary Emberger.

Figure 3. The central to eccentric stipe is in no part black.
The tube layer is decurrent. Photo © Gary Emberger.

Figure 4. The cap margin is not so much fringed with hairs
but perhaps best described as lacerate. Photo © Gary

Figure 5. The pores are angular and about 1 mm in
diameter. Photo © Gary Emberger.


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