It has recently been proposed that three asaccharolytic species forming pigmented colonies on blood agar should be transferred from the genus to the new genus In the taxonomy of the genus cellular fatty acid profiles obtained by gas chromatography and mass spectrometry after methylation and derivatization of whole cells have proved to be useful. In this study cellular fatty acids and sugars were analyzed in strains of and species, and the resulting multivariate data were investigated by using principal component analysis. This analysis clearly separated the spp. strains from the strains of, and In the description of the genus the presence of various hydroxylated fatty acids was not discussed. In this study we show that these cellular components are useful taxonomic markers.


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