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Abstract
Strains of Pseudomonas oryzicola Klement 1955, Pseudomonas papaveris Lelliott & Wallace 1955, and Pseudomonas syringae var. capsici (Orsini 1942) Klement 1956 were examined by the standard biochemical and cultural tests currently in use for characterising pseudomonads, and their pathogenicity was tested on selected plants. We conclude that P. oryzicola is a junior synonym of P. syringae pv. syringae van Hall 1902, and P. papaveris is a junior synonym of P. cichorii (Swingle 1925) Stapp 1928. The only known strain of P. syringae var. capsici is a member of P. viridiflava (Burkholder 1930) Dowson 1939 and therefore the name P. syringae var. capsici is a nomen dubium.