genus Rhamnus vs dicot genus

genus Rhamnus and dicot genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Rhamnus	Yes	No	No	No
dicot genus	Yes	No	No	No

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

genus Rhamnus: type genus of the Rhamnaceae: buckthorns
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of genus Rhamnus include magnoliopsid genus.

genus Rhamnus (noun)	dicot genus (noun)
type genus of the Rhamnaceae: buckthorns	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination