Lentinellus omphalodes

Scientific name:  Lentinellus omphalodes (Fries) Karsten
Derivation of name: Omphal- means "navel" (umbicilus)
perhaps referring to the conspicuous stipes.  
Synonyms:  
Common name(s):  Stalked Lentinellus.
Phylum:   Basidiomycota
Order:   Russulales
Family:   Auriscalpiaceae
Occurrence on wood substrate:  Saprobic; solitary or in
small groups on deciduous or coniferous wood or on moss-
covered ground; August through November.  
Dimensions:  Caps 2.5-5 cm wide; stipes 0.5-5 cm long and
0.5-3 mm thick.   
Cap: Smooth; pinkish to brownish, darkening brown.        
Gills: Decurrent; edges toothed and torn; whitish to tinged
pinkish-brown.
Spore print: Buff.
Stipe: Brownish overall; central to off-center; dry, smooth,
and ridged.
Veil: Absent.
Edibility: Inedible.
Comments: All Lentinellus species are too bitter to be
edible.

More information at MushroomExpert.com: 

    

Figure 1. Note the nearly central stipes.
Photo © William Roody.