purple-staining Cortinarius vs Cortinarius mutabilis

purple-staining Cortinarius and Cortinarius mutabilis both are nouns.

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

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

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

purple-staining Cortinarius (noun)	Cortinarius mutabilis (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