Coprinus atramentarius vs inky-cap mushroom

Coprinus atramentarius and inky-cap mushroom both are nouns.

Word	Noun	Adjective	Verb	Adverb
Coprinus atramentarius	Yes	No	No	No
inky-cap mushroom	Yes	No	No	No

As nouns, Coprinus atramentarius and inky-cap mushroom are synonyms defined as:

Coprinus atramentarius and inky-cap mushroom: having a cap that melts into an inky fluid after spores have matured

Other synonyms of Coprinus atramentarius include inky cap.

Coprinus atramentarius (noun)	inky-cap mushroom (noun)
having a cap that melts into an inky fluid after spores have matured	having a cap that melts into an inky fluid after spores have matured