Thymelaeales vs Melastomataceae

Thymelaeales and Melastomataceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Thymelaeales	Yes	No	No	No
Melastomataceae	Yes	No	No	No

Thymelaeales (noun)	Melastomataceae (noun)
Myrtaceae, Combretaceae, Elaeagnaceae, Haloragidaceae, Melastomaceae, Lecythidaceae, Lythraceae, Rhizophoraceae, Onagraceae, Lecythidaceae, Punicaceae	a family of trees and bushes and herbs of order Myrtales; many are cultivated as ornamentals