Cerioporus leptocephalus

Scientific name: Cerioporus leptocephalus (Jacq.)
Zmitr.
Derivation of name: Meaning of Cerioporus TBD;
leptocephalus means "slender-headed" from lepto-
meaning "thin" or "slender" and cephal- meaning "head."
SynonymyPolyporus leptocephalus (Jacq.) Fr.;
Polyporus elegans Fr.
Common names:   Elegant polypore.
Phylum:   Basidiomycota
Order:   Polyporales
Family:   Polyporaceae
Occurrence on wood substrate:  Saprobic; solitary to
scattered on dead deciduous wood, sometimes on conifers;
June through November.  
Dimensions:  Caps 1-12 cm wide; stipes 0.5-7.5 cm long
and 1.5-15 mm thick, central to lateral.   
Upper surface: Yellowish to ochre to tan; smooth; glabrous;
not zonate.
Pore surface: White to gray or yellowish; pores 4-5 per
mm.
Edibility: Inedible.
Comments: The black base of the stalk is an important
field character. If the cap surface or margin of the cap is
radially striate (Figure 6), the specimen is most likely the
closely related species Cerioporus varius (Pers.)
Zmitr. & Kovalenko.

More information at MushroomExpert.com:   


Figure 1. A solitary specimen of Cerioporus
leptocephalus
on a fallen branch.
Photo © Gary Emberger.


Figure 2. Scattered specimens of Cerioporus
leptocephalus
on a log.
Photo © Gary Emberger.


Figure 3. Elegant polypore fruiting from the broken ends
of small branches. Photo © Gary Emberger.


Figure 4. Note the black stipe bases and different stipe
positions. Photo © Gary Emberger.


Figure 5. The black coloration at the base of the stipe
may be quite limited as in these specimens. Photo © Gary
Emberger.


Figure 6. The radially striate cap of this specimen indicates
it is Cerioporus varius, not C. leptocephalus. Otherwise,
the two species are very similar macroscopically.
Photo © Gary Emberger.


Figure 7. Sectioned caps of Cerioporus leptocephalus
showing the light tan colored context and the tube layer.
Photo © Gary Emberger.


Figure 8. The pore surface is decurrent to the black
portion of the stipe. Photo © Gary Emberger.


FIgure 9. Cerioporus leptocephalus has tiny pores, 4-5
per mm.
Photo © Gary Emberger.


Figure 10. Specimens collected during a foray. The stipe is
just about lateral in one specimen and nearly central in the
other. Photo © Gary Emberger.


Figure 11. Collection of Cerioporus leptocephalus at the
2008 NEMF foray in Connecticut.
Photo © Gary Emberger.

 

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