Summary:
Features include 1) relatively thin fruitbodies that are spread out on wood with the spore-producing surface exposed, but bend outwards at the upper end to form a cap, 2) an upper cap surface that is white to gray or tan, 3) radiating gill-like plates on the spore-bearing surface that are lavender to purple and break into short tooth-like segments, and 4) a thin, gelatinous layer between the context and the gill-like plates.

Microscopic:
spores 6.0-8 x 2-3 microns, cylindric, slightly curved; basidia 12-14 x 5-6 microns, clavate; cystidia "numerous, arising in the hymenium or as the apical portion of skeletal hypha in the trama", cylindric to fusoid, colorless, thick-walled, "typically with the acute apex crystalline encrusted"; scattered hyphal pegs projecting through the hymenium; generative hyphae 2-4 microns wide, colorless, thin-walled, skeletal hyphae 2.5-5 microns wide, colorless, rarely branched; there is a thin, gelatinous layer between the context and the gill-like plates, (Ginns), spores 6-7.5 x 2.5-3 microns, "cylindric, slightly curved", smooth, inamyloid, colorless; basidia 4-spored, 12.5-14 x 5-6 microns, clavate, with a basal clamp connection; cystidia abundant, imbedded or projecting up to 15 microns, 4-7 microns wide, "thick-walled, usually capitately incrusted", "arising from imbedded tramal skeletal hyphae than curve out into the hymenium", "hyphal pegs also present"; hyphal system dimitic, context generative hyphae 2-4 microns wide, colorless, thin-walled, rarely branched, with clamp connections, context skeletal hyphae 2.5-5 microns wide, colorless, thick-walled, with rare branching, non-septate, (Gilbertson)

Notes:
Trichaptum fuscoviolaceum has been recorded from BC (Ginns(28)), and NB, ON, QC, SK, AR, CA, NC, and NM, (Gilbertson(1)).

Synonyms and Alternate Names:
Alpova cinnamomeus C.W. Dodge
Rhizopogon diplophloeus Zeller & C.W. Dodge