Pseudomonas flexibilis (Hespell 1977) Shin et al. 2016 Serpens flexibilis Hespell 1977 (Approved Lists 1980) Hespell R.B. Serpens flexibilis gen. nov., sp. nov., an unusually flexible lactate-oxidizing bacterium. 1977 27 4 371 381 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-27-4-371 Shin S.K. Hwang C.Y. Cho Y.J. Yi H. Reclassification of Serpens flexibilis Hespell 1977 as Pseudomonas flexibilis comb. nov., with Pseudomonas tuomuerensis Xin et al. 2009 as a later heterotypic synonym 2015 38 8 563 566 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 10.1016/j.syapm.2015.09.007 26516088