Meryta vs rosid dicot genus

Meryta and rosid dicot genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Meryta	Yes	No	No	No
rosid dicot genus	Yes	No	No	No

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

Meryta (noun)	rosid dicot genus (noun)
small to medium evergreen dioecious trees of oceanic climates: puka	a genus of dicotyledonous plants