Ulmus vs dicot genus

Ulmus and dicot genus both are nouns.

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

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

Ulmus: type genus of family Ulmaceae; deciduous trees having simple serrate leaves; widely distributed in temperate regions
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Ulmus include magnoliopsid genus.

Ulmus (noun)	dicot genus (noun)
type genus of family Ulmaceae; deciduous trees having simple serrate leaves; widely distributed in temperate regions	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination