family Palmae vs genus Phytelephas

family Palmae and genus Phytelephas both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Palmae	Yes	No	No	No
genus Phytelephas	Yes	No	No	No

family Palmae (noun)	genus Phytelephas (noun)
chiefly tropical trees and shrubs and vines usually having a tall columnar trunk bearing a crown of very large leaves; coextensive with the order Palmales	small genus of South American feather palms