calycle

from The Century Dictionary.

• noun In botany, an outer accessory calyx, or set of leaflets or bracts looking like a calyx, as in the pink. Also called calyculus.
• noun In zoology, a calice or little calyx; some part of a zoöphyte like or likened to the calyx of a plant.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Bot.) A row of small bracts, at the base of the calyx, on the outside.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun botany A row of small bracts at the base of the calyx, on the outside.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

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