class Hemiascomycetes vs subdivision Ascomycotina

class Hemiascomycetes and subdivision Ascomycotina both are nouns.

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

class Hemiascomycetes (noun)	subdivision Ascomycotina (noun)
class of fungi in which no ascocarps are formed: yeasts and some plant parasites	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