Ustilaginales vs fungus order

Ustilaginales and fungus order both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ustilaginales	Yes	No	No	No
fungus order	Yes	No	No	No

As nouns, fungus order is a hypernym of Ustilaginales; that is, fungus order is a word with a broader meaning than Ustilaginales:

Ustilaginales: parasitic fungi causing smuts; sometimes placed in class Tiliomycetes
fungus order: the order of fungi

Ustilaginales (noun)	fungus order (noun)
parasitic fungi causing smuts; sometimes placed in class Tiliomycetes	the order of fungi