Summary:
Subgenus Telamonia. The species requires confirmation for the Pacific Northwest. Features include 1) a gray-brown cap with the crown sometimes black, for a long time covered with a gray silky veil, 2) gray, distant young gills, 3) a black-brown stem at first completely covered in white gray, then white-flaky, and 4) growth under hardwoods, particularly in alder bogs. The description is derived from Moser(1). According to the online Species Fungorum, accessed June 14, 2012, this name had been used by some authors for Cortinarius alnetorum (Velen.) M.M. Moser, and by Cooke for Cortinarius parvannulatus. When accessed again November 26, 2017, the online Species Fungorum gave Cortinarius alnetorum (Velen.) M.M. Moser as a synonym of Cortinarius iliopodius (Bull.) Fr. On the other hand, MycoBank, accessed the same day (November 17, 2017), gave the two species separately, with Cortinarius alnetorum f. iliopodius as a synonym of Cortinarius iliopodius.

Cap:
1-5cm across, domed, with umbo; gray-brown with crown sometimes black, for a long time covered with gray silky veil

Gills:
distant; gray becoming rust brown

Stem:
"black-brown, at first completely covered in white gray, then white-flaky"

Microscopic spores:
spores 9-10.5 x 5-5.5 microns

Notes:
Harrower(1) assigned a BC collection sequence 128 to Cortinarius iliopodius. The sequence is close but not identical to other collections under that name, (D. Miller, pers. comm.). It is found also in Europe (Moser(1)). Morphological correlation is desirable.

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