genus Parmelia vs fungus genus

genus Parmelia and fungus genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Parmelia	Yes	No	No	No
fungus genus	Yes	No	No	No

As nouns, fungus genus is a hypernym of genus Parmelia; that is, fungus genus is a word with a broader meaning than genus Parmelia:

genus Parmelia: type genus of the Parmeliaceae; a large genus of chiefly alpine foliaceous lichens
fungus genus: includes lichen genera

genus Parmelia (noun)	fungus genus (noun)
type genus of the Parmeliaceae; a large genus of chiefly alpine foliaceous lichens	includes lichen genera