Psidium vs magnoliopsid genus

Psidium and magnoliopsid genus both are nouns.

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

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

Psidium: guavas
magnoliopsid genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Psidium include dicot genus.

Psidium (noun)	magnoliopsid genus (noun)
guavas	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination