Dutch elm fungus vs Ceratostomella ulmi

Dutch elm fungus and Ceratostomella ulmi both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dutch elm fungus	Yes	No	No	No
Ceratostomella ulmi	Yes	No	No	No

As nouns, Dutch elm fungus and Ceratostomella ulmi are synonyms defined as:

Dutch elm fungus and Ceratostomella ulmi: fungus causing Dutch elm disease

Dutch elm fungus (noun)	Ceratostomella ulmi (noun)
fungus causing Dutch elm disease	fungus causing Dutch elm disease