Pluteus atromarginatus

Scientific name:  Pluteus atromarginatus (Konrad)
Derivation of name:  Atr- means "black" and margin-
means "edge" or "border" (margin). Atromarginatus refers
to the dark gill edges of this species.
SynonymsPluteus cervinus subsp. atromarginatus
Common name(s):   Black-edged Pluteus.
Phylum:   Basidiomycota
Order:   Agaricales
Family:   Pluteaceae
Occurrence on wood substrate:  Saprobic; solitary to
scattered on decaying conifer wood; August through
Dimensions: Caps 3-10 cm wide; stipes 5-10 cm long and
5-15 mm thick.    
Cap:  Blackish-brown, streaked with flattened black fibers.
Gills: Free; white at first, then salmon when mature; edges
dark brown to black.
Spore print: Salmon-pink.
Stipe: Whitish, coated with small black fibers.
Veil: Absent.
Edibility: Edible.
Comments: This species may be confused with Pluteus
cervinus but P. cervinus is not as dark and lacks the dark
gill edges. 
More information at   

Figure 1. The dark brown cap and white, immature gills of
Pluteus atromarginatus. Photo © Steve Nelsen.

Figure 2. Specimens on a collection table at a NEMF foray.
Note the dark fibers on the whitish background color of the
stipe. Photo © Gary Emberger.

Figure 3. Dark brown to black gill edges. Photo ©
George Barron.


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This page © 2008 by Gary Emberger, Messiah College