class Gasteromycetes vs gastromycete

class Gasteromycetes and gastromycete both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Gasteromycetes	Yes	No	No	No
gastromycete	Yes	No	No	No

class Gasteromycetes (noun)	gastromycete (noun)
fungi in which the hymenium is enclosed until after spores have matured: puffballs; earth stars; stinkhorn fungi	any fungus of the class Gasteromycetes