class Pyrenomycetes vs Pyrenomycetes

class Pyrenomycetes and Pyrenomycetes both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Pyrenomycetes	Yes	No	No	No
Pyrenomycetes	Yes	No	No	No

As nouns, class Pyrenomycetes and Pyrenomycetes are synonyms defined as:

class Pyrenomycetes and Pyrenomycetes: class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora

class Pyrenomycetes (noun)	Pyrenomycetes (noun)
class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora	class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora