ascomycete vs ascomycetous fungus

ascomycete and ascomycetous fungus both are nouns.

Word	Noun	Adjective	Verb	Adverb
ascomycete	Yes	No	No	No
ascomycetous fungus	Yes	No	No	No

As nouns, ascomycete and ascomycetous fungus are synonyms defined as:

ascomycete and ascomycetous fungus: any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus

ascomycete (noun)	ascomycetous fungus (noun)
any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus	any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus