Cortinarius cliduchus ss G. Saar is a fairly anonymous species; whitish gills, stem and flesh and an ochraceous yellow cap. Species with these characters has often been lumped together under the name
Cortinarius langei Hry.
C. cliduchus is distinguished from superficially resembling species by a slimy/sticky bright yellow girdle at the bulb margin. The species is very rare througout Europe. We saw it for the first time in Karlstadt, Germany in 2000, since then we have collected it in France, Ain, a couple of localities in southern Denmark and most recently, during the 20th Nordic Mycological Congress on Gotland, Sweden. The latter collection is the northernmost known occurance of the species. Genetically, it is in the Percomes clade, like C. pseudoarcuatorum, which has a similar habitus (shape of the bulb, and sometimes slightly umbonate cap).
