ascomycetous fungus vs ascomycete

ascomycetous fungus and ascomycete both are nouns.

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

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

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

ascomycetous fungus (noun)	ascomycete (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