Scientific name: Tapinella atrotomentosa (Batsch) Sutara
Derivation of name: Atr- means "black" and toment-
means "wool" or "hair." Atrotomentosus refers to the black,
densely hairy stipe so characteristic of this species.
Synonyms: Paxillus atrotomentosus (Batsch) Fr.,
Agaricus atrotomentosus Batsch
Common name(s): Velvet Paxillus; Velvet-footed Pax.
Occurrence on wood substrate: Saprobic; solitary to
several to clustered on conifer stumps, logs, or buried wood;
July through October.
Dimensions: Caps 4-15 cm wide; stipes 2-12.5 cm long
and 1-3 cm thick.
Cap: Dry, covered with matted hairs; brownish; margin
inrolled when young.
Gills: Attached to decurrent; yellowish; forked or porelike
Stipe: Eccentric to nearly lateral; velvety with dark brown to
Comments: The blackish-brown wooly stipe distinguishes
this mushroom from other species of Paxillus.
More information at MushroomExpert.com:
Figure 1. Velvet Paxillus on wood. Note the inrolled cap
margin on the youngest specimen. Photo © William Roody.
Figure 2. Young specimens. Note the decurrent gills and
small size of the cap relative to the stalk. Photo © Pam
Figure 3. Specimens as they might show up during a foray.
Unless noted while collecting, the association of the
mushrooms with a wood substrate will not be evident with
specimens collected in this manner. Photo © Gary
Figure 4. Portion of the densely hairy stipe just below the
gills. Photo © Gary Emberger.
Figure 5. Forked gills near the stipe.
Photo © Gary