Syringa vs magnoliopsid genus

Syringa and magnoliopsid genus both are nouns.

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

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

Syringa: genus of Old World shrubs or low trees having fragrant flowers in showy panicles: lilacs
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Syringa include dicot genus.

Syringa (noun)	magnoliopsid genus (noun)
genus of Old World shrubs or low trees having fragrant flowers in showy panicles: lilacs	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination