Nidulariaceae vs fungus family

Nidulariaceae and fungus family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nidulariaceae	Yes	No	No	No
fungus family	Yes	No	No	No

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

Nidulariaceae (noun)	fungus family (noun)
bird's-nest fungi	includes lichen families