Summary:
Galerina rugisperma is characterized by an obtuse cap, a darkening stem, a thin veil, a loose exosporium, and large capitate cheilocystidia, (Smith). The description is derived from Smith(2).

Gills:
narrowly adnate, horizontal, broad; ochraceous tawny at maturity; edges slightly fimbriate [fringed]

Stem:
2-4cm long and about 0.1cm wide, equal; pale honey color in upper part, becoming reddish brown from base up when old; scattered appressed patches of veil fibrils over lower part

Veil:
thin and leaving scattered appressed patches of fibrils over lower part

Microscopic spores:
spores 8-10 x 5-6 microns, ovate in face view, inequilateral in side view, nearly russet in KOH, "with a wrinkled outer layer variously loosened over the surface"; basidia 4-spored; pleurocystidia none, cheilocystidia abundant, 38-60 x 8-12 microns, ventricose to narrowly ventricose and with a capitellum 4-7 microns wide, or subcylindric-capitate, colorless "but, as revived in KOH, with a colloidal content"; gill trama "somewhat interwoven, ochraceous in KOH"; cap trama "homogeneous, ochraceous in KOH"; clamp connections present

Notes:
The holotype of Galerina rugisperma was found in WA. There is a BC collection by O. Ceska at the University of British Columbia.

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