Scientific name: Pholiota squarrosa (Vahl) P. Kumm.
Derivation of name: Squarros- means "with upright
rough, scurfy" (squarrose) in reference to the
Synonym: Agaricus squarrosus Vahl
Common name(s): Scaly Pholiota.
Occurrence on wood substrate: Saprobic; typically in
on living or dead deciduous or conifer
sometimes at the
base of the tree; July through
Dimensions: Caps 2.5-10 cm; stipes 5-10 cm long and
Cap: Dry; yellow-brown surface covered with pinkish-tan
Gills: Attached; yellow at first, developing green tones,
brown at maturity.
Spore print: Brown.
Stipe: Dry; scaly like the cap.
Veil: Yellowish partial veil leaving persistent membranous
or sometimes ring zone on upper stalk.
Edibility: Poisonous. Although some people eat it, it is
recommended as there are reports of gastric upset
Comments: Some specimens have an odor of onions or
garlic. Michael Kuo makes the point in his website
below that there is usually enough uncertainty due to age,
variable and overlapping traits, and weather conditions,
that microscopic analysis may be required to confirm
identifications for this and most Pholiota species.
More information at RogersMushrooms.com:
More information at MushroomExpert.com:
Figure 1. Typical cespitose cluster on wood. Photo©
Figure 2. Clusters of Pholiota squarrosa on a log.
Photo © Gary Emberger.
Figure 3. Clusters of Pholiota
squarrosa on the same log
shown in Figure 2. The outer cap
tissue was cracked and
peeling on most of the
mushrooms on this log. Our club
members attributed this to the hot and dry conditions
experienced by these developing mushrooms. Photo ©
Figure 4. These specimens were collected and identified
during the 2003 NEMF foray. Photo © Gary Emberger.
Figure 5. A closer
view of the specimens on the right in
Figure 4. Photo © Gary Emberger.