subclass Homobasidiomycetes vs class Basidiomycetes

subclass Homobasidiomycetes and class Basidiomycetes both are nouns.

Word	Noun	Adjective	Verb	Adverb
subclass Homobasidiomycetes	Yes	No	No	No
class Basidiomycetes	Yes	No	No	No

subclass Homobasidiomycetes (noun)	class Basidiomycetes (noun)
category used in some classification systems for various basidiomycetous fungi including e.g. mushrooms and puffballs which are usually placed in the classes Gasteromycetes and Hymenomycetes	large class of higher fungi coextensive with subdivision Basidiomycota