genus Angrecum vs Angraecum

genus Angrecum and Angraecum both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Angrecum	Yes	No	No	No
Angraecum	Yes	No	No	No

As nouns, genus Angrecum and Angraecum are synonyms defined as:

genus Angrecum and Angraecum: genus of tropical Old World epiphytic orchids with showy flowers sometimes grotesque

Other synonyms of genus Angrecum include genus Angraecum.

genus Angrecum (noun)	Angraecum (noun)
genus of tropical Old World epiphytic orchids with showy flowers sometimes grotesque	genus of tropical Old World epiphytic orchids with showy flowers sometimes grotesque