First Report of <i>Melampsora euphorbiae</i> on Poinsettia (<i>Euphorbia pulcherrima</i>) in Norway

Fig. 2. Orange spore masses (urediniospores) of Melampsora euphorbiae on the lower surface of a leaf of poinsettia (Euphorbia pulcherrima cv. Cortez White). Photo by V. Talgø.



Image from Applied Turfgrass Science article:
First Report of Melampsora euphorbiae on Poinsettia (Euphorbia pulcherrima) in Norway