Calyculate: applied to antennae, whose cup-shaped joints are so arranged as to fit one into the other.
"Explanation of Terms Used in Entomology" by John. B. Smith
A single sporangium calyculate, x 50.
"The North American Slime-Moulds" by Thomas H. (Thomas Huston) MacBride
Involucre simple, not calyculate.
"The Manual of the Botany of the Northern United States" by Asa Gray