Litchi chinensis vs lichee

Litchi chinensis and lichee both are nouns.

Word	Noun	Adjective	Verb	Adverb
Litchi chinensis	Yes	No	No	No
lichee	Yes	No	No	No

As nouns, Litchi chinensis and lichee are synonyms defined as:

Litchi chinensis and lichee: Chinese tree cultivated especially in Philippines and India for its edible fruit; sometimes placed in genus Nephelium

Other synonyms of Litchi chinensis include litchi, litchi tree, Nephelium litchi.

Litchi chinensis (noun)	lichee (noun)
Chinese tree cultivated especially in Philippines and India for its edible fruit; sometimes placed in genus Nephelium	Chinese fruit having a thin brittle shell enclosing a sweet jellylike pulp and a single seed; often dried
	Chinese tree cultivated especially in Philippines and India for its edible fruit; sometimes placed in genus Nephelium