Dutch elm fungus vs fungus

Dutch elm fungus and fungus both are nouns.

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

As nouns, fungus is a hypernym of Dutch elm fungus; that is, fungus is a word with a broader meaning than Dutch elm fungus:

Dutch elm fungus: fungus causing Dutch elm disease
fungus: an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia

Dutch elm fungus (noun)	fungus (noun)
fungus causing Dutch elm disease	an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia