Summary:
Features include small size, a white pendant cap, a smooth white spore-bearing surface that may become vein-like with forked gill-like folds, a short or absent stem, growth on moss, and nearly round, smooth, inamyloid spores. The description is derived from Redhead(7).

Cap:
0.1-0.7cm across, pendant, conchate to conical to cup-shaped, mostly bilaterally symmetric, margin incurved, fragile overall; white; dry, bald near margins, sometimes slightly villose near point of attachment

Gills:
smooth in very young fruitbodies, soon becoming cantharelloid [vein-like] and usually forming forked gill-like folds in larger fruitbodies; colored as cap

Stem:
absent or replaced by a short pseudostem

Odor:
not recorded

Taste:
not recorded

Microscopic spores:
spores 5-7 x 4.5-7 microns, nearly round to very broadly pip-shaped with very prominent apiculus, smooth, non-amyloid, colorless, with thin to pronounced walls; basidia 4-spored, 19-25 x 6-9 microns, clavate, clamped; pleurocystidia and cheilocystidia none; tramal hyphae 3-7 microns wide, "compactly to loosely subparallel, slightly interwoven", smooth, thin-walled, colorless, nonamyloid, clamped; pellicular hyphae 3-5 microns wide, "loosely arranged and occasionally projecting, a few ends near the margins with sparse diverticulae or irregularly formed short branches"

Spore deposit:
[presumably whitish]

Notes:
Collections of Rimbachia bryophila were examined from BC, WA, OR, CA, and MI, (Redhead).

EDIBILITY

Synonyms and Alternate Names:
Daedalea biennis (Bull.) Fr.
Mniopetalum bryophilum (Pers.) Donk