Summary:
{See also Xeromphalina Table.} Features include 1) small size, 2) a dry cap that is fulvous to sienna brown or ochraceous-tawny, sometimes with a red-brown umbo and pale yellow margin, 3) narrow pallid to straw-colored gills that are adnate or with a decurrent tooth, 4) a dry stem that is honey to buff at the top and dark red-brown to blackish in its lower part, the stem base with cinnamon mycelium, 5) bitter taste, and 6) growth on conifer wood. The description is derived from Redhead(2).

Cap:
0.35-1.2cm across, convex, obtuse to subumbonate [somewhat umbonate], with incurved margin at first; fulvous to sienna brown or "ochraceous-tawny", sometimes with dark brick-colored umbo and pale luteous [pale yellow] or "maize yellow" margins; dry, frosted yellow, margin obscurely translucent-striate

Flesh:
colored as cap

Gills:
adnate with short decurrent tooth or arcuate, moderately spaced, narrow, with 2 tiers of sub-gills; pallid to straw-colored

Stem:
1.6-3cm x 0.07-0.1cm, narrowing downward and slightly curved, honey to buff at top, fulvous to umber centrally, and dark brick-colored to blackish in lower part; finely powdered overall, cinnamon-colored mycelium at base, associated with dark brick-colored rhizomorphs in the wood

Odor:
not distinctive

Taste:
bitter

Microscopic spores:
spores 4.5-5 x 3-4.8 microns, nearly round to broadly elliptic, smooth, amyloid, colorless, thin-walled; basidia 4-spored, 25-28 x 5-5.5 microns, narrowly clavate, colorless; cheilocystidia 25-32 x 3.5-4 microns, narrowly cylindric, colorless, thin-walled, refringent, usually with 2-5 finger-like processes at top; cap trama duplex, the subpellis about 50 microns thick, composed of hyphae (3)8-14 microns wide, with subgelatinized walls, incrusted with red to reddish brown pigments in KOH, this subtended by a layer of more filamentous hyphae (3)4-9 microns wide, with non-gelatinized walls, incrusted with reddish pigments in KOH; cap cuticle a thin layer of smooth, thin-walled hyphae that are colorless in KOH or water, mostly 4-6 microns wide, "on some basidiomes giving rise to diverticulate ends over the entire surface, on others only a sparse layer, marginally giving rise to thin-walled, diverticulate cystidia or cystidioform ends"; stem cuticle hyphae 4-5 microns wide, filamentous, colorless in the apical region, smooth, thick walled, "with thickened reddish brown walls lower down", "bearing scattered caulocystidia apically, and hairs on lower portions"; caulocystidia 45-60 x 10-12 microns, "irregularly shaped, thin walled to only slightly thickened, inflated apically, often obscurely angular, obtusely lobed, often a few subcircinate, golden yellow in water, yellow to pale reddish brown in KOH, very conspicuous against the hyaline stipitipellis hyphae in scalp sections of the stipe apex"; clamp connections present

Spore deposit:
[presumably pale]

Notes:
Xeromphalina campanelloides has been found at least in BC, WA, QC, and NY, (Redhead(2)).

EDIBILITY