Pluteaceae vs fungus family

Pluteaceae and fungus family both are nouns.

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

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

Pluteaceae: a family of fungi belonging to the order Agaricales, with free gill attachment and pink spores (Pluteaceae)
fungus family: includes lichen families

Pluteaceae (noun)	fungus family (noun)
a family of fungi belonging to the order Agaricales, with free gill attachment and pink spores (Pluteaceae)	includes lichen families