sourceTaxonName: Peridermium harknessii
targetTaxonName: Pinus ponderosa
localityName: United States
referenceCitation: Rycyk Jr., F., and Luley, C.J.. 1989. Pine-pine gall rust, caused by %Peridermium harknessii%, on scots and ponderosa pines in Missouri.. Pl. Dis. 73:610