Chrysomphalina chrysophylla

Scientific name:  Chrysomphalina chrysophylla
(Fries) Clemencon
Derivation of name: Chrys- means "gold" or "golden"
in reference to the orange-yellowish gills of this
mushroom. 
Synonyms:  Gerronema chrysophylla (Fries) Singer.;
Omphalina chrysophylla
Common name(s):  Golden-gilled Gerronema
Phylum:   Basidiomycota
Order:   Agaricales
Family:   Tricholomataceae
Occurrence on wood substrate: Saprobic; on conifer
wood; July through September.  
Dimensions:  Caps are 1-4 cm wide; stipes are 2-4
cm long and 1.5-3 mm thick.   
Cap:  Brownish-orange in the center to yellowish-
brown toward the edge.        
Gills:  Decurrent, golden to apricot-yellow.
Spore print: Pale yellow.
Stipe: Smooth, yellow to darker with age.
Veil: Absent.
Edibility: Unknown.
Comments:

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Figure 1. The cap is brownish-orange in the center and
yellowish-brown at the margin. Photo © George Barron.

Figure 2. Note the golden color of the decurrent gills.
Photo © Steve Nelsen.