Eustoma vs dicot genus

Eustoma and dicot genus both are nouns.

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

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

Eustoma: small genus of herbs of warm regions of southern North America to northern South America
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Eustoma include magnoliopsid genus.

Eustoma (noun)	dicot genus (noun)
small genus of herbs of warm regions of southern North America to northern South America	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination