Pileus: applanate; 30-65 mm diameter; glabrous with dense, silvery squamules outside disk; viscid, hygrophanous; whitish greyto pale greyish blue with a grey-brown to tan centre; often purple-brown when young; margin often striate.

Stipe:clavate to cylindrical with a small piston-like bulb; 30 – 70 × 10 – 22 mm;± pruinose; silvery pale violet to white, apex stronger violet; staining faintly yellowish with a white, membranous, fragile, erect to pendulous ring.

Gills: violaceous or grey with a persistent bluish tinge; often thick, somewhat veined.

Veil: white to pale yellow, sparse to rather thick andcopious.

Flesh: white, marbled blue to faintly yellowish; odour nil or sweetish melleous; taste ±

Spore print: rusty brown.

Spores: subglobose to ovoid; 9.5-12.5 ×7.5-9.3 μm, moderately verrucose, dextrinoid.

Ecology: in Nothofagus forest, occasional

Notes: this Cortinarius is characterized by its silvery squamules, blue grey cap and pendulous ring.