class Plectomycetes vs subdivision Ascomycotina

class Plectomycetes and subdivision Ascomycotina both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Plectomycetes	Yes	No	No	No
subdivision Ascomycotina	Yes	No	No	No

class Plectomycetes (noun)	subdivision Ascomycotina (noun)
class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration)	a large subdivision of Eumycota including Hemiascomycetes and Plectomycetes and Pyrenomycetes and Discomycetes; sac fungi; in some classification systems considered a division of the kingdom Fungi