epicalyx vs calyculus

epicalyx and calyculus both are nouns.

Word	Noun	Adjective	Verb	Adverb
epicalyx	Yes	No	No	No
calyculus	Yes	No	No	No

As nouns, epicalyx and calyculus are synonyms defined as:

epicalyx and calyculus: a group of bracts simulating a calyx as in a carnation or hibiscus

Other synonyms of epicalyx include calycle, false calyx.

epicalyx (noun)	calyculus (noun)
a group of bracts simulating a calyx as in a carnation or hibiscus	a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp)
	a group of bracts simulating a calyx as in a carnation or hibiscus