-spo·ri·um
\ˈspōrēəm, -pȯr-\  noun combining form 
Etymology: New Latin, from spora spore + -ium 
1. plural -spo·ria\-ēə\  also -sporiums  : (such) a coat or layer of a spore wall 
< endosporium >
2. : plant having (such) a spore  — in generic names
< Helminthosporium >
1. plural -spo·ria
< endosporium >
2.
< Helminthosporium >