Growing in leaf litter under mixed conifers. Pileus farinose-white, bruising/scraping easily to a peachy color. Lamellae off-white, broadly attached. Stipe off-white, silky-fibrillose, terminating in thick white rhizomorphs.

Tan cup fungi with tapered stipe that white at base and white rhizomorphs growing trailside in mossy soil,
Mild UV on interior,
Indistinct eraser odor when cut,
Near tan oak/doug fir,
Indistinct taste,
Olive brown KOH

File name :DSCN4209.JPG
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Picture size :2048 x 1536
Resolution :72 x 72 dpi
Number of bits :8bit/channel
Protection attribute :Off
Hide Attribute :Off
Camera ID :N/A
Model name :E995
Quality mode :FINE
Metering mode :Multi-pattern
Exposure mode :Aperture priority
Flash :No
Focal length :16.5 mm
Shutter speed :1/18.1second
Aperture :F4.5
Exposure compensation:0 EV
Fixed white balance :Auto
Lens :Built-in
Flash sync mode :N/A
Exposure difference :N/A
Flexible program :N/A
Sensitivity :Auto
Sharpening :Auto
Curve mode :N/A
Color mode :COLOR
Tone compensation :AUTO
Latitude(GPS) :N/A
Longitude(GPS) :N/A
Altitude(GPS) :N/A

Clearly not Lichenompahlia umbellifera, to which iNaturalist defaults if identified as Arrhenia onisca. Most likely Arrhenia onisca, but not yet confirmed by microscopy or DNA. Apparently iNaturalist chooses not to recognize the validity of Arrhenia onisca, a rare but recognized omphalinoid species. Growing in moss near shore of Cowlitz river.
White spore print. Cap 2cm. Specimen dried and kept for study.

Clearly not Lichenompahlia umbellifera, to which iNaturalist defaults if identified as Arrhenia onisca. Most likely Arrhenia onisca, but not yet confirmed by microscopy or DNA. Apparently iNaturalist chooses not to recognize the validity of Arrhenia onisca, a rare but recognized omphalinoid species. Growing in moss near shore of Cowlitz river.
White spore print. Cap 2cm. Specimen dried and kept for study.