spo·ran·gi·um 
(spə-rănjē-əm)
(spə-rănjē-əm)n. pl. spo·ran·gi·a (-jē-ə)
A single-celled or many-celled structure in which spores are produced, especially in fungi, algae, mosses, and ferns. Also called spore case.
[New Latin sporangīum : SPOR(O)- + Greek angeion, vessel; see ANGIO-.]
spo·rangi·al (-jē-əl) adj.