class Plectomycetes vs order Eurotiales

class Plectomycetes and order Eurotiales both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Plectomycetes	Yes	No	No	No
order Eurotiales	Yes	No	No	No

class Plectomycetes (noun)	order Eurotiales (noun)
class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration)	order of fungi having a closed ascocarp (cleistothecium) with the asci scattered rather than gathered in a hymenium