fern genus vs division Pteridophyta

fern genus and division Pteridophyta both are nouns.

Word	Noun	Adjective	Verb	Adverb
fern genus	Yes	No	No	No
division Pteridophyta	Yes	No	No	No

fern genus (noun)	division Pteridophyta (noun)
genera of ferns and fern allies	containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta