Viscaceae vs genus Viscum

Viscaceae and genus Viscum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Viscaceae	Yes	No	No	No
genus Viscum	Yes	No	No	No

Viscaceae (noun)	genus Viscum (noun)
in some classifications considered a subfamily of Loranthaceae	type genus of the Viscaceae: Old World evergreen shrubs parasitic on many trees including oaks but especially apple trees, poplars, aspens and cottonwoods