The Collaborative International Dictionary
Caudicula
Caudicle \Cau"di*cle\, ||Caudicula \Cau*dic"u*la\, n. [Dim. of L. cauda tail, appendage.] (Bot.) A slender, elastic process, to which the masses of pollen in orchidaceous plants are attached.
Wiktionary
caudicula
n. (context botany English) A caudicle.