family Graminaceae vs family Gramineae

family Graminaceae and family Gramineae both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Graminaceae	Yes	No	No	No
family Gramineae	Yes	No	No	No

As nouns, family Graminaceae and family Gramineae are synonyms defined as:

family Graminaceae and family Gramineae: the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane

Other synonyms of family Graminaceae include family Poaceae, Graminaceae, Gramineae, grass family, Poaceae.

family Graminaceae (noun)	family Gramineae (noun)
the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane	the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane