Pluteus spp.

Scientific names:   Pluteus aurantiorugosus (Trog) Sacc.;
Pluteus aurantipes Minnis, Sundb. & Nelsen; Pluteus
(Britzelm.) Lapl. (= P. lutescens); Pluteus
(Peck) Peck; Pluteus leoninus (Schaeff.) P.
Kumm.; Pluteus flavofuligineus G.F. Atk.; Pluteus
Peck; Pluteus petasatus (Fr.) Gillet
Derivation of namesAurantiorugosus means "orange
wrinkled." Aurantipes means "orange-footed," referring to the
reddish-orange stipe. Lutescens means "turning yellow."
Longistriatus means "having long lines." Leoninus refers to
"lion." Flavofuligineus means "sooty yellow." Granularis
means "granules" or "fine grain," referring to the presence of
granules on the cap. Petasatus means "having a cap on."
Phylum:   Basidiomycota
Order:   Agaricales
Family:   Pluteaceae
Occurrence on wood substrate: Saprobic; single to scattered
or clustered on decaying wood, wood chips, woody debris
and sawdust; spring through fall depending on the species.  
Dimensions: Consult field guides.   
Cap: Consult field guides.        
Gills: Free
Spore print:
Pink to salmon or brownish-pink.
The centrally-placed stem of Pluteus spp. typically
separates cleanly from the cap. Consult field guides for stipe
characteristics of individual species.
 Some species are edible.  
Comments: The combination of free gills, saprobic habit on
wood, and pink gills makes this genus fairly easy to recognize in
the field. However, there are quite a number of species in the
literature and many of them are separated on obscure
microscopic features. 

More information at

Figure 1. P. aurantiorugosus. Photo © Gary Emberger.

Figure 2. P. aurantipes. This species is rather new to science.
Steve Nelsen, who donated this photograph and the picture in
Figure 3 is one of the people who found the specimens
growing in Wisconsin and published a description of it as a
new species in 2006. Photo © Steve Nelsen.

Figure 3. P. aurantipes. A new species is always worth
an additional picture. Photo © Steve Nelsen.

Figure 4. P. lutescens. Photo © Steve Nelsen.

Figure 5.Young P. longistriatus. Photo © Steve Nelsen.

Figure 6. Mature P. longistriatus. Photo © John Plischke

Figure 7. P. leoninus. Photo © Steve Nelsen.

Figure 8. P. flavofuligineus. Photo © Steve Nelsen.

Figure 9. P. granularis. Photo © Steve Nelsen.

Figure 10. P. petasatus. Photo © Gary Emberger.

Figure 11. P. petasatus. This photograph shows the free
gills typical of Pluteus spp. Photo © Gary Emberger.


Home | Shape key | Glossary

This page © 2008 by Gary Emberger, Messiah College