epicalyx

noun, plural ep·i·ca·lyx·es, ep·i·ca·ly·ces [ep-i-key-luh-seez, –kal–uh-] /ˌɛp ɪˈkeɪ ləˌsiz, -ˈkæl ə-/. Botany.

1. an involucre resembling an outer calyx, as in the mallow.

noun plural -lyxes or -lyces (-lɪˌsiːz)

1. botany a series of small sepal-like bracts forming an outer calyx beneath the true calyx in some flowers