cŏrolla, ae, f. dim. [corona],
a little crown or garland (mostly poet.), Plaut. Bacch. 1, 1, 37; Cat. 63, 66; Prop. 1, 16, 7; Plin. 8, 5, 5, § 13; Paul. ex Fest. p. 63, 14 Müll.
corōlla ae, f a little crown or garland, Ct., Tb. ...
An Elementary Latin Dictionary
·noun The inner envelope of a flower; the part which surrounds the organs of fructification, consist...
Webster's Dictionary of the English Language