class Angiospermae vs Spermatophyta

class Angiospermae and Spermatophyta both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Angiospermae	Yes	No	No	No
Spermatophyta	Yes	No	No	No

class Angiospermae (noun)	Spermatophyta (noun)
comprising flowering plants that produce seeds enclosed in an ovary; in some systems considered a class (Angiospermae) and in others a division (Magnoliophyta or Anthophyta)	seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and Bryophyta (spore producing plants lacking vascular tissue and roots)