inky-cap mushroom vs Coprinus atramentarius

inky-cap mushroom and Coprinus atramentarius both are nouns.

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

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

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

Other synonyms of inky-cap mushroom include inky cap.

inky-cap mushroom (noun)	Coprinus atramentarius (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