Cortinarius mutabilis vs purple-staining Cortinarius

Cortinarius mutabilis and purple-staining Cortinarius both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cortinarius mutabilis	Yes	No	No	No
purple-staining Cortinarius	Yes	No	No	No

As nouns, Cortinarius mutabilis and purple-staining Cortinarius are synonyms defined as:

Cortinarius mutabilis and purple-staining Cortinarius: a fungus with a reddish purple cap having a smooth slimy surface; close violet gills; all parts stain dark purple when bruised

Cortinarius mutabilis (noun)	purple-staining Cortinarius (noun)
a fungus with a reddish purple cap having a smooth slimy surface; close violet gills; all parts stain dark purple when bruised	a fungus with a reddish purple cap having a smooth slimy surface; close violet gills; all parts stain dark purple when bruised