genus Amygdalus vs Amygdalus

genus Amygdalus and Amygdalus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Amygdalus	Yes	No	No	No
Amygdalus	Yes	No	No	No

As nouns, genus Amygdalus and Amygdalus are synonyms defined as:

genus Amygdalus and Amygdalus: used in former classifications for peach and almond trees which are now included in genus Prunus

genus Amygdalus (noun)	Amygdalus (noun)
used in former classifications for peach and almond trees which are now included in genus Prunus	used in former classifications for peach and almond trees which are now included in genus Prunus