class Hemiascomycetes vs subdivision Ascomycota

class Hemiascomycetes and subdivision Ascomycota both are nouns.

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

class Hemiascomycetes (noun)	subdivision Ascomycota (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