sourceTaxonName: Melampsora occidentalis
targetTaxonName: Populus trichocarpa
localityName: United States
referenceCitation: Moltzan, B.D., Stack, R.W., Mason, P. A., and Ostry, M.E.. 1993. First report of %Melampsora occidentalis% on %Populus trichocarpa% in the central United States.. Pl. Dis. 77:953