[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Gammaproteobacteria Garrity et al. 2005
         Order Xanthomonadales Saddler and Bradbury 2005 see Order Lysobacterales Christensen and Cook 1978 (Approved Lists 1980)
           Family Xanthomonadaceae Saddler and Bradbury 2005 see Family Lysobacteraceae Christensen and Cook 1978 (Approved Lists 1980)
             Genus Xanthomonas Dowson 1939 (Approved Lists 1980)
               01 Xanthomonas campestris (Pammel 1895) Dowson 1939 (Approved Lists 1980)
               02 Xanthomonas albilineans (Ashby 1929) Dowson 1943 (Approved Lists 1980)
               03 Xanthomonas arboricola Vauterin et al. 1995
               04 Xanthomonas axonopodis Starr and Garces 1950 (Approved Lists 1980)
               05 Xanthomonas bromi Vauterin et al. 1995
               06 Xanthomonas cassavae (ex Wiehe and Dowson 1953) Vauterin et al. 1995
               07 Xanthomonas citri (ex Hasse 1915) Gabriel et al. 1989
               08 Xanthomonas codiaei Vauterin et al. 1995
               09 Xanthomonas cucurbitae (ex Bryan 1926) Vauterin et al. 1995
               10 Xanthomonas cynarae Trébaol et al. 2000
               11 Xanthomonas euvesicatoria Jones et al. 2006
               12 Xanthomonas fragariae Kennedy and King 1962 (Approved Lists 1980)
               13 Xanthomonas gardneri (ex Šutič 1957) Jones et al. 2006
               14 Xanthomonas hortorum Vauterin et al. 1995
               15 Xanthomonas hyacinthi (ex Wakker 1883) Vauterin et al. 1995
               16 Xanthomonas melonis Vauterin et al. 1995
               17 Xanthomonas oryzae (ex Ishiyama 1922) Swings et al. 1990
               18 Xanthomonas perforans Jones et al. 2006
               19 Xanthomonas phaseoli (ex Smith 1897) Gabriel et al. 1989
               20 Xanthomonas pisi (ex Goto and Okabe 1958) Vauterin et al. 1995
               21 Xanthomonas populi (ex Ridé 1958) Ridé and Ridé 1992 see Xanthomonas populi (ex Ridé 1958) van den Mooter and Swings 1990
               22 Xanthomonas sacchari Vauterin et al. 1995
               22.0 "Xanthomonas saccari" see Xanthomonas sacchari Vauterin et al. 1995
               23 Xanthomonas theicola Vauterin et al. 1995
               24 Xanthomonas translucens (ex Jones et al. 1917) Vauterin et al. 1995
               25 Xanthomonas vasicola Vauterin et al. 1995
               26 Xanthomonas vesicatoria (ex Doidge 1920) Vauterin et al. 1995