E-Flora BC: Electronic Atlas of the Flora of British Columbia

Summary:
Features include 1) a viscid to slimy striate cap that is olive-green or olive brown, fading to brownish, 2) gills that are whitish to olive brown to rust-brown with white edges, 3) a long rooting stem that is pale yellow in its upper part, and covered with patches of white to olivaceous veil remnants up to a fleeting ring, 4) growth in boggy soil or on bog edges, and 5) a dull cinnamon spore deposit.

Smith(3) examined collections from WA, ON, MI, and NY. It was reported by Miller(8) from AK. There are collections from BC at the University of British Columbia. It is also found in Europe.

Gills:
"adnate to shallowly adnexed, subdistant, becoming ventricose" [broader in middle]; whitish then pale olivaceous and finally brown from spores; edges white-fimbriate [white-fringed] and eroded, (Smith)

Stem:
(6)10-15(20)cm x 0.2-0.5(0.7)cm, equal, hollow, very rigid; covered with patches or zones of white or olivaceous veil fibrils up to the ring area, densely pruinose at top, (Smith), "rooting, hollow, very rigid and fragile"; very pale yellow in upper part, "covered with patches of white or olivaceous veil remnants up to the ring", dense bloom at top, (Phillips)

Veil:
partial veil fibrous, white, leaving remnants on the margin and a fleeting ring, or more typically a fibrous ring zone, (Bessette), veil leaves patches of white or olivaceous remnants up to the ring area, (Smith)

Odor:
not distinctive (Smith), faint, mealy, (Buczacki)

Taste:
not distinctive (Smith)

Microscopic spores:
spores 14-17 x 7-9 microns, ovate in face view (Phillips says almond-shaped), inequilateral in side view, not conspicuously truncate, "smooth or a few faintly wrinkled as revived in KOH", wall thickened to 0.75-1 microns and pale tawny in Melzer''s reagent; basidia 4-spored, 26-34 x 9-11 microns, projecting when sporulating, colorless to yellowish in KOH; pleurocystidia 35-50 x 10-15 microns, "fusoid-ventricose to clavate-mucronate, beaked or with several protuberances over apical region, rarely ventricose with a broadly rounded apex, as revived in KOH with an amorphous highly refractive interior body or amorphous content variously disposed", cheilocystidia abundant, 32-50 x 6-12 microns, "a mixture of leptocystidia and chrysocystidia, fusoid-ventricose to clavate-mucronate"; clamp connections present, (Smith), with apical germ pore (Bessette)

Spore deposit:
dull rusty brown (Smith, Bessette, Phillips)