as·cid·i·um 
(ə-sĭdē-əm)
(ə-sĭdē-əm)n. pl. as·cid·i·a (ə-sĭdē-ə)
Botany
Botany
A pitcher-shaped or bottle-shaped part or organ, such as the hollow tubular leaf of a pitcher plant.
[New Latin, from Greek askidion, diminutive of askos, wineskin.]
as·cidi·ate′ adj.
as·cidi·form′ (-ə-fôrm′) adj.