genus Coniogramme vs fern genus

genus Coniogramme and fern genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Coniogramme	Yes	No	No	No
fern genus	Yes	No	No	No

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

genus Coniogramme (noun)	fern genus (noun)
terrestrial ferns of Pacific islands and Asia	genera of ferns and fern allies