cocculen.

/ˈkɒkjuːl/Etymology: < modern Latin cocculum: diminutive of coccum berry.
Botany.
the world > plants > part of plant > reproductive part(s) > fruit or reproductive product > [noun] > compound or aggregate fruit > part that splits off
1835 J. Lindley (ed. 2) i. ii A pericarp of dry elastic pieces or coccules.
This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2018).