Summary: Features include 1) resupinate growth on wood, 2) a buff surface with short teeth, 3) amyloid spiny spores, 4) gloeocystidia and encrusted cystidia, and 5) a dimitic hyphal system, the generative hyphae with clamp connections.
Microscopic: SPORES 4.5-5.5 x 3-4 microns, oval to elliptic, colorless, amyloid and distinctly echinulate in Melzer''s reagent; BASIDIA 4-spored, 20-30 x 4-5 microns, narrowly clavate, with basal clamp connection; CYSTIDIA clustered at tips of teeth, 60-80 x 4-8 microns, cylindric, tapering slightly at the tip, thick-walled, heavily encrusted on upper part, gloeocystidia numerous, 25-40 x 4-6 microns, projecting slightly, fusoid to cylindric, often mammillate, "with highly refractive contents, positive in sulfuric benzaldehyde", with a basal clamp connection; HYPHAE dimitic, generative hyphae 2-3.5 microns wide, thin-walled, with clamp connections, skeletal hyphae 1.5-3 microns wide, thick-walled, aseptate, rarely branched, (Lindsey)
Notes: It has been recorded from BC, OR, ID, AB, MN, and MT, (Ginns).
Habitat and Range
Habitat
causing white rot of hardwood and conifer logs and slash, (Lindsey), on dead wood, associated with white rot, (Ginns)