Substrate: rotting plant remains, or horse manure and straw
Conservation Status: Not of concern
The genus Cheilymenia is characterized by small, stipe-less, flattened saucers bearing conspicuous (under a hand lens) eyelash hairs and growing on dung, rich soil, plant debris, or other materials. Fruitbody 2-10 mm broad, saucer- to disc-shaped, broadly attached; upper surface orange fading to golden yellow, then olive-yellow, becoming reddish brown in drying; margin with sparse and indistinct hyaline hairs, somewhat darker than the upper surface; underside paler than the upper surface, with comparatively few inconspicuous, scattered, hyaline to yellowish brown pointed hairs, the longest ones near the margin.
Sources: Trudell, Steve and Joe Ammirati. Mushrooms of the Pacific Northwest. Portland, Timber Press, Inc. 2009. Beug, Michael W., Alan E. Bessette, and Arleen R. Bessette. Ascomycete Fungi of North America. Austin, University of Texas Print, 2014.
PNW Herbaria: Specimen records of Cheilymenia theleboloides in the Consortium of Pacific Northwest Herbaria database
CalPhotos: Cheilymenia theleboloides photos