Scientific name: Stereum striatum (Fr.) Fr.
Derivation of name: Striat- means "finely furrowed" or
(striate) in reference to the striate appearance of the
Synonyms: S. sericeum
Common name(s): Silky parchment
Occurrence on wood substrate: Saprobic; on small dead
branches of ironwood, also called American
hornbeam (Carpinus caroliniana); year-round.
Dimensions: Shelf-like caps are 0.5 to 1 cm wide and may
Sterile upper surface: The upper surface is whitish to buff
brown and covered with small, radiating, silky fibers
giving it a
shiny, often silvery appearance. Caps may be
Fertile lower surface: Light buff to brown and whitish with
Edibility: Not edible.
Comments: The silvery, silky-shiny caps growing on blue
beech are a distinctive combination.
Figure 1. Silky parchment on an ironwood twig.
Photo © Gary Emberger.
Figure 2. Striated caps. Photo © Gary Emberger.
Figure 3. The lower or fertile surface. Note how several caps
have fused together. Photo © Gary Emberger.
Figure 4. The lower fertile, basida-bearing surfaces of
several caps. Photo © Gary Emberger.
Figure 5. This specimen was photographed at the NEMF
2003 foray. Photo © Gary Emberger.