Bumelia vs dicot genus

Bumelia and dicot genus both are nouns.

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

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

Bumelia: deciduous or evergreen American shrubs small trees having very hard wood and milky latex
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Bumelia include magnoliopsid genus.

Bumelia (noun)	dicot genus (noun)
deciduous or evergreen American shrubs small trees having very hard wood and milky latex	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination