Thevetia vs magnoliopsid genus

Thevetia and magnoliopsid genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Thevetia	Yes	No	No	No
magnoliopsid genus	Yes	No	No	No

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

Thevetia: genus of poisonous tropical American evergreen shrubs and trees having entire leaves and large cymose flowers
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Thevetia include dicot genus.

Thevetia (noun)	magnoliopsid genus (noun)
genus of poisonous tropical American evergreen shrubs and trees having entire leaves and large cymose flowers	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination