Psilotaceae vs fern family

Psilotaceae and fern family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Psilotaceae	Yes	No	No	No
fern family	Yes	No	No	No

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

Psilotaceae: small family of lower ferns having nearly naked stems and minute scalelike leaves
fern family: families of ferns and fern allies

Psilotaceae (noun)	fern family (noun)
small family of lower ferns having nearly naked stems and minute scalelike leaves	families of ferns and fern allies