First Report of Phytophthora Root Rot, Caused by Phytophthora cinnamomi, on Taxus Species in Ohio. M. A. Ellis, Department of Plant Pathology, The Ohio State University, OARDC, Wooster 44691. S. A. Miller, and K. D. Cochran. Department of Plant Pathology, The Ohio State University, OARDC, Wooster 44691. Plant Dis. 77:537. Accepted for publication 28 December 1992. Copyright 1993 The American Phytopathological Society. DOI: 10.1094/PD-77-0537E.