Sporangium

A capsule-like spore-bearing structure in spore-producing plants, often distinguishable only under strong magnification. In ferns, sporangia are most often located on the underside of the spore-bearing leaves.

A capsule-like spore-bearing structure in spore-producing plants, often distinguishable only under strong magnification. In ferns, sporangia are most often located on the underside of the spore-bearing leaves.