Morchellaceae vs fungus family

Morchellaceae and fungus family both are nouns.

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

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

Morchellaceae (noun)	fungus family (noun)
a family of edible fungi including the true morels	includes lichen families