Ceratostomella ulmi vs Dutch elm fungus

Ceratostomella ulmi and Dutch elm fungus both are nouns.

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

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

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

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