sentences:  Both of these spores are stored in acervuli, which are asexual fruiting bodies that have a pad or mat-like shape and are formed below the epidermal tissue of the host.For survival, the spores overwinter in infected debris, and the surviving spores serve as a source of inoculum for the next growing season.A second source of inoculum is also spread during the growing season, making this a polycyclic disease.