Scientific name: Plicaturopsis crispa (Fries) Reid
Derivation of name: Crisp- means "curly" or "crisped"
referring to the crimped or crisped gill-like folds or perhaps
the undulating cap margin.
Synonyms: Trogia crispa (Pers.) Fr.
Common name(s): Crimped gill
Occurrence on wood substrate: Saprobic; in overlapping
clusters on decaying branches and trunks of deciduous
Dimensions: Caps 1-2.5 cm wide.
Cap: Concentrically zoned with yellow-orange, reddish-
brown, and yellow-brown zones; tomentose; margin
Gills: What appear to be gills are better understood as
gill-like or vein-like folds or wrinkles. They may be forked.
Spore print: White.
Stipe: A very short, rudimentary extension of the cap or
Comments: The wrinkled gill-like underside is very
Figure 1. Clusters of overlapping caps of Plicaturopsis
crispa on a fallen hardwood branch. Photo © Gary
Figure 2. The
undulating margin of the zoned cap is a
distinctive feature. Photo © Gary Emberger.
Figure 3. Top and botton views of the crimped gill.
Figure 4. This branch is turned over to reveal the whitish
gill-like spore-bearing surfaces of the many clustered caps.
Photo© Dianna Smith.
Figure 5. Closer observation of the underside of the cap
unusual structure of the basidia-bearing surface.
There are no
pores, true gills, or teeth here. Photo © Dianna
Figure 6. The spore-bearing surface of Plicaturopsis
crispa is described as gill-like
or vein-like folds or wrinkles
which may be forked. Photo © Gary Emberger.