Uredinium

A lesion caused by a rust fungus, a group of spore-bearing filaments crowded together on which masses of urediniospores are formed.

uredinium

The sorus that bears urediniospores in the Uredinales (stage II). (Pl. uredinia.)
Found on http://ppathw3.cals.cornell.edu/glossary/Defs_U.htm
No exact match found