-ˌōl noun
also cly·pe·o·la klə̇ˈpēələ
( plural clypeoles -lz ; or clypeo·lae -əˌlē)
Etymology: New Latin clypeola, from Latin clypeus round shield + -ola -ole
: one of the shield-shaped sporophylls composing the fertile spike in members of the genus Equisetum