From the LPSN web site: "Pseudomonas ficuserectae Goto 1983, Pseudomonas amygdali Psallidas and Panagopoulos 1975 (Approved Lists 1980), Pseudomonas meliae Ogimi 1981, and Pseudomonas savastanoi (Janse 1982) Gardan et al. 1992 are members of a single genomospecies. Thus, these species should be considered synonymous and the correct name for this species should be Pseudomonas amygdali. Unfortunately, Pseudomonas amygdali, as delineated by DNA-DNA hybridization, could not be differentiated from other genomospecies by phenotypic tests. So the authors [Gardan et al. 1999] do not formally propose nomenclatural changes." [N.B.: See also Gomila M et al. (2017).]

Gardan, L., Shafik, H., Belouin, S., Broch, R., Grimont, F., and Grimont, P.A.D. "DNA relatedness among the pathovars of Pseudomonas syringae and description of Pseudomonas tremae sp. nov. and Pseudomonas cannabina sp. nov. (ex Sutic and Dowson 1959)." Int. J. Syst. Bacteriol. (1999) 49:469-478. [N.B.: Gardan et al. claim strains CFBP 1660 (pathotype of P. syringae pv. primulae) and CFBP 2348 (pathotype of P. syringae pv. ribicola) are misidentified and should be transferred to Pseudomonas viridiflava.]

Gomila, M., Busquets, A., Mulet, M., García-Valdés, E., and Lalucat, J. "Clarification of taxonomic status within the Pseudomonas syringae species group based on a phylogenomic analysis." Front. Microbiol. (2017) 8:2422.

Psallidas, P.G., and Panagopoulos C.G. "A new bacteriosis of almond caused by Pseudomonas amygdali sp. nov." Annales de l'Institut Phytopathologique Benaki N.S. (1975) 11:94-108. [No PubMed record available.]

Skerman, V.B.D., McGowan, V., and Sneath, P.H.A. (editors). "Approved lists of bacterial names." Int. J. Syst. Bacteriol. (1980) 30:225-420. [No PubMed record available.]

Young, J.M., Saddler, G.S., Takikawa, Y., De Boer, S.H., Vauterin, L., Gardan, L., Gvozdyak, R.I., and Stead, D.E. "Names of plant pathogenic bacteria 1864-1995." Rev. Plant Pathol. (1996) 75:721-763. [No PubMed record available.]