Cortinarius pitkinensis is a yellow-to-orange gilled Dermocybe known to occur at higher elevation in mossy drainages. It is likely to be misidentified as Cortinarius croceus or Cortinarius cinnamomeus - the most widely known names for yellow and orange-gilled Dermocybe. As it happens, there are many similar species which are challenging to differentiate.
Cortinarius trappei - Ammirati, Liimat. & Niskanen 2014 Description:Pileus: 15-35 mm across, convex, sub-umbonate to umbonate, margin straight to inrolled when young, surface moist to dry, burgandy to red-brown, or dull tan when dry, typically covered with fine, appressed bronze (pale orange-brown) veil remnants. Gills: Close, burgandy to rich wine-red, becoming dark brown in age.... Continue Reading →
Cortinarius rufosanguineus is a red Dermocybe in section Sanguinei. It occurs in subalpine and alpine heath and has a larger overall stature than species of similar red coloration.
Cortinarius birkebakii is a distinctive all-red species in sub-genus Dermocybe. It was described from the Pacific Northwest.