Mucormycosis

A 47-year-old man with type 2 diabetes mellitus is admitted to the hospital for treatment of diabetic ketoacidosis with insulin and intravenous fluids. During his hospitalization, he experiences severe facial pain and subsequently develops septic shock. Despite appropriate resuscitative efforts, the patient dies in the intensive care unit. Autopsy shows a large black eschar over his intranasal mucosa. Microscopic examination of this lesion shows multiple non-septate hyphae that branch at wide angles. Which of the following species was likely responsible for this patient’s death?