For comments about Cortinarius in general see: https://canberra.naturemapr.org/species/3462.
There are many species of Cortinarius, some still not described. This lilac/blue/purple pigeonhole will help avoid having too many unidentified sightings accumulate in Cortinarius sp. and will make it easier for anyone who wants to look at unidentified sightings of Cortinarius with these colours.
Cortinarius sp. - lilac, blue(ish), purple(ish) is listed in the following regions:
Canberra & Southern Tablelands