Armillariella mellea vs honey fungus

Armillariella mellea and honey fungus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Armillariella mellea	Yes	No	No	No
honey fungus	Yes	No	No	No

As nouns, Armillariella mellea and honey fungus are synonyms defined as:

Armillariella mellea and honey fungus: a honey-colored edible mushroom commonly associated with the roots of trees in late summer and fall; do not eat raw

Other synonyms of Armillariella mellea include honey mushroom.

Armillariella mellea (noun)	honey fungus (noun)
a honey-colored edible mushroom commonly associated with the roots of trees in late summer and fall; do not eat raw	a honey-colored edible mushroom commonly associated with the roots of trees in late summer and fall; do not eat raw